Pipe insertion

Its a first year plumbing/pipe fitting So to clarify. I need to have a 1/2" black iron pipe that is 12" center to center. I need to thread the pipe myself and have two 90's of both ends. I am having trouble getting the pipe to thread on and stay at 12". I cut the pipe at 10 5/8" with the math of the thread engagement.

Pipe insertion. Cut your pipe squarely and ensure it is free of debris. If using copper, deburr the pipe using Emory Cloth and a Deburr Tool. Measure and mark the insertion depth. With the SharkBite Deburr & Gauge Tool, mark the insertion depth. You can also find the SharkBite Insertion Depth Chart here. Make the connection. Push the fitting to your mark.

F-3500 Insertion Electromagnetic Flow Meter Overview. Insertion flow meters are designed to be installed into a specific pipe size. One of the common installation challenges is an incorrect or unknown pipe size. Recommended Tools. Pipe OD tape measure; Calculator; Pipe dimension table; Measuring the Outer Diameter (OD) Pipe Dimensions for Non ...

About this item. Comes with a standard and pipe insert; Genuine Zippo windproof lighter with distinctive Zippo "click". All metal construction; Windproof design works virtually anywhere. Refillable for a lifetime of use; For optimum performance, we recommend genuine Zippo premium fuel, flints, and wicks. Made in USA; Lifetime guarantee that "it ...A pipe, welded into the tank, capped at the end inside the tank, and having a flange or screw plug fitting on the open end, is ready to receive a pipe insert heater. Pipe Insert Heaters Tips : Both flanged and screw plug models can be used to heat a "dry well" in a tank and are a great choice for applications requiring low watt densities such ...Measure the new pipe, accounting for the amount you need for the insertion depth, space on the fitting, and the length of the pipe needed between cut ends. Cut the pipe squarely and evenly and deburr with the SharkBite deburr tool. Ensure that the pipe is clean and free of any debris, including copper shavings. 6. Install SharkBite MaxAcrylonitrile butadiene styrene, better known as “ABS”, is a very installation friendly piping system that requires little time or special tools for cutting and joining ABS in order to make a water/air tight joint. ABS is used solely for drainage, waste and vent (DWV) in plumbing systems and is not used in pressurized applications.DIG's 16-066R Barb Insertion Tool is a heavy-duty device used in drip irrigation to insert a wide range of 1/4 in. barbed connectors into 1/4 in. micro tubing. The Barb Insertion Tool features an easy to hold handle with a large gripper to hold the micro tubing. To use, insert the barb into the holder chamber, grip the micro tubing and squeeze ...

A quality dripper insertion machine is the key to producing inline drip irrigation pipe. Sitting at the head of the pipe production line the dripper inserting machine inserts drippers at custom intervals into the fresh pipe as it is produced. The DRTS inserting machine has an insertion rate of up to 500 drippers/min at a line speed up to 120 m ...Push the pipe into the fitting, up to the pipe stop. If the Speedfit Pipe has been cut correctly the insertion mark on the pipe will be level with the collet head. A good connection has been made. Ensure the pipe is free of score marks. Cut the pipe square. When using Speedfit Barrier Pipe cut along an insertion mark.Insertion valves from Hydra-Stop and Team Industrial are state-of-the-art, built to ensure the stoppage of flow in all types of pipe and can be installed in high pressure lines. Enterprise, Inc. The Utility Specialists. Garrison Enterprise, Inc. began operations in early 1960, its founding principals Elbert Basolis Sr. & Robert Tobolski Sr ...To assemble correctly, the pipe needs to be pushed into the fitting until it meets the tube stop. Follow these three steps to insert the pipe into the fitting. Insert the pipe through …For Series 45 fittings, use the Insertion Depth Guide provided with the fitting. 3.For PEX Pipe, gently insert a pipe stiffener (provided for each connection with fitting) into the pipe end. 4.Make certain to push the tubing completely into the fitting until it comes into contact with the internal tube stop. 5.To disconnect, ensure system has ...The insertion line found on gasketed PVC pipe – marked around the pipe circumference near the spigot end – indicates the depth of insertion of the pipe spigot into the bell. …The 1/8" clearance is to allow for a little tolerance for the welder and prevent weld spatter from damaging the flange face. So the answer is: Insert the pipe into the slip-on flange only far enough to allow distance from the end of the pipe to the face of the flange equal to the thickness of the pipe wall plus 1/8".Pipe supports, acoustic solutions, firestop systems, DWV and water heater accessories. PRVs, TMVs and T&P relief valves for safeguarding water systems. Push-to-connect technologies for drinks dispense, pure water, pneumatics and OEMs. Manufacturing and distributing premium quality appliance, plumbing and MRO products trusted by pros for decades.

Are you looking to enhance the warmth and ambiance in your home? A gas fireplace insert is an excellent addition that can transform any room into a cozy retreat. When choosing a ga...Gastrostomy feeding tube (G-tube) insertion is done in part using a procedure called endoscopy. This is a way of looking inside the body using a flexible tube with a small camera on the end of it. The endoscope is inserted through the mouth and down the esophagus, which leads to the stomach. After the endoscopy tube is inserted, the skin over ...The sensor is designed for submersion or insertion into tanks, pipelines, and open channels. The sensor features a plunger-style pH glass electrode allowing it to be mounted at any angle. The porous Teflon... [See More] Mounting Options: In-Line (Insertion) pH Accuracy: 0.1000. pH Range: 0.0 to 14.The insertion depths of pipes from 1 to 4 corresponds to 30 mm, 35 mm, 40 mm and 50 mm, respectively. With the required insertion depth, particles in the straight pipe 4 can climb directly upwards, and the rising height is about 300 mm even without pre-filling the particles.To insert a tick symbol in a Microsoft program, such as Excel, Outlook, Word, Publisher or OneNote, click the Symbol button. Choose Wingdings in the Font drop-down menu, and scroll...

Lynn police log today.

An angled insertion (position 3 in figure) can increase the immersion length over a perpendicular insertion (position 4 in figure) but the insertion lengths shown for both are too short unless the tip extends past the centerline. ... Insight: Generally a distance of 25 pipe diameters between the equipment outlet and the temperature sensor is ...The insertion length "U" is always equal to or larger than the immersion length "R" of a thermowell. API RP 551: TW installed perpendicular to the pipe wall should have a minimum immersion length of 2 inches. A general thumb rule is to use an immersion length equaling a minimum of 10 times the diameter of the thermowell.Challenging nasogastric tube insertion made easy Ann R Coll Surg Engl. 2015 Mar;97(2):162. doi: 10.1308/rcsann.2015.97.2.162a. Authors A Ahmad 1 , A Abdul-Hamid, A Abdul-Hamid. Affiliation 1 Queen Victoria Hospital NHS Foundation Trust, UK. PMID: 25723704 PMCID: ...An insertion flow meter is defined as a meter that measures flow at a strategic point in a pipe, then uses that measurement to determine the average flow through the pipe. The terms "insertion meter" and "flow sensor" are used interchangeably. Flow Sensors rely on the same physical laws as do full bore flowmeters - electromagnetism ...May 27, 2016 · PVC cement seals pipe through a chemical reaction that bonds the plastic of one part to another. For a guaranteed seal on a slip fitting, you will need both PVC primer and PVC cement. The primer softens the inside of the fitting, preparing it to bond, while the cement keeps the two pieces stuck together tight. Pipe insertion depth in the powder and vibration parameters (frequency and amplitude) play important roles in the force chain formation in the particle system, which is necessary to achieve motion. In order to apply this novel approach to convey granular material, there are still some issues that need to be clarified, such as how to optimize ...

Pipe Insertion Depth and Size ChartSharkBite push-to-connect fittings are compatible with PEX, copper, CPVC, PE-RT and HDPE pipe. We also offer transition push-to-connect transition fittings for PVC and polybutylene pipe types.Lined Pipe Systems' engineers have extensively studied the problem of preventing internal corrosion of pipelines with welded joints using weld joint sleeve insert, and pipe joint sleeve insert. They can help you explore the different lining and joint solution options that are available. Contact us. Our welded joint system changes the way ...Cryotap personnel have been involved with promotion and development of Hot tapping, Pipe Freezing, Pocket and Flow Meter Insertion in Ireland since 1999. ... Pocket and Flow Meter Insertion since 1999 in Ireland, with previous experience gained in the U.K and Europe. Based in Waterford we primarily cover Ireland 32 counties and on request U.K ...This lighter gift set comes with a regular insert and a pipe insert. The regular insert is a standard insert with 16 holes in the chimney (8 per side). The pipe insert's ingenious design encases the flame in metal, allowing it to be drawn directly into the pipe without bending over the side and damaging the bowl. of the pipe wall, known as pipe stiffness, and the support afforded to the pipe by surrounding embedment soils counteracts these earth and live loads. The Modified Iowa formula is widely used to calculate the expected in-situ deflection of PVC pipe at various depths and installation conditions. ASTM D3034, Section X2, recommends using 7.5% Insert the pipe through the release collar to prevent an accidental release. This action enables the pipe to rest on the grab ring, which is the part that is meant to strengthen the connection. Push the pipe with a slight twisting action (not at an angle) up until it arrives at the tube stop.DataFrame.pipe(func, *args, **kwargs) [source] #. Apply chainable functions that expect Series or DataFrames. Parameters: funcfunction. Function to apply to the Series/DataFrame. args, and kwargs are passed into func . Alternatively a (callable, data_keyword) tuple where data_keyword is a string indicating the keyword of callable that expects ...The treatment of complete subglottic stenosis (SGS) remains a challenge due to anatomic and technological limitations. Placement of the Montgomery T-tube is an effective treatment option. For complete SGS patient combined with lower trachea collapse, the ventilation management during the T-tube insertion process is more complicated.

QuikValve insert. 3. Ream the pipe QuikValve Insertion Machine also doubles as a 3" to 12" lateral tapping machine Reamer blades are M-4 tool steel 2. Drill the pipe wall and remove coupon 1. Install the QuikValve sleeve The QuikValve Sleeve supports and strengthens the pipe. The full all around gasket assures water containment for the life of ...

Brass push-fitting pipe insertion depth (standard or varies by brand?) Ask Question. Asked 3 years, 1 month ago. Modified 3 years, 1 month ago. Viewed 217 times. 0. I have a 90 …How to insert properly a press fitting pipe in the fitting, marking the correct insertion depth on the pipe, with a permanent markerThis pipe fittings guide will outline all the major types of PVC fittings as well as how and why to use them. This is a long post, so you can use the "Contents" section to navigate it! …B. Excavation of insertion pits shall be at locations determined by the Contractor. C. Insertion pits shall be of sufficient length to allow the bursting head and new HDPE pipe to enter the host pipe at an angle that will maintain the grade of the existing sanitary sewer. 4.2 PREPARATION A. 01225 864 864 or [email protected]. Make An Enquiry. Live Gas Mains Insertion is a cast iron mains replacement technique offering maximum operational flexibility. Using a special gland box, the old main is kept live throughout the insertion process and the new PE is gassed upto maintain gas supplies to customers. Scope. 1.1 This guide describes design and selection considerations and installation procedures for the rehabilitation of sanitary and storm sewers by the insertion of solid wall or profile wall or corrugated polyethylene pipe into an existing pipe and along its existing line and grade. The procedures in this guide are intended to minimize ...Inserta Tee Lateral Connections for Mainlines. Inserta Tee is a three-piece service connection consisting of a PVC hub, rubber sleeve and stainless steel band. Inserta Tee compression fits into the cored wall of a mainline and requires no special tooling except for the Inserta Tee hole saw bits. Inserta Tees are designed to connect 2" (51 mm ...Threaded Square Tube Inserts, or simply Square Thread Inserts, are used to protect assemblies from the share edge of the tube and provide an aesthetically pleasing appearance.The threaded tube inserts have an internal thread that can accommodate components, such as leveling feet, tilt glides or castors. Our Square Metal Threaded Inserts are made from High Density Polyethylene (HDPE) with Zinc ...

Heil 5000 air conditioner.

Sedgwick bereavement.

The PermaSeal™ Insertion Valve is the first inserting valve solution that is a true Resilient Wedge Gate Valve capable of delivering reliability, longevity, functionality, and repeatable water shut-off throughout the valve’s lifetime. With a 350 psi rating and available in 4˝, 6˝, 8˝, 10˝, and 12˝ standard (DI, CI, PVC pipe) and ...The insertion valve is permanently installed on top of the pipe through the flange in the collar. This results in a utility that has the same level of system control and access for maintenance as with a resilient seated gate. For all intents and purposes, the new gate operates just as any other standard one in the system.4. Rubber Tape and Hose Clamps. Like the rubber and silicone repair tape, this repair method uses compression to repair small leaks in PVC pipes. Wrap rubber around the damaged area, then separate the hose clamps and place them around the affected area, tightening to stop or slow the leak. This repair should be a temporary fix, as the rubber ...Consolidated Pipe & Supply’s Water & Sewer Division delivers a full line of pipe, valves, fittings and controls to customers nationwide. ... Valve insertion is a permanent valve, which can be installed in a live line without shutting the system down or dropping pressure. We can perform insertions on 4″-24″ lines on ductile iron, cast iron ...Step 1. Slide your expansion ring over the PEX tubing until it overhangs the end of the tubing by no more than 1/8 inch or until the stop on the ring (if present) touches the tubing. Step 2. Using an approved manual or cordless expansion tool, insert the tool into the PEX pipe and expand the pipe.YOUR HOT TAP, LINE STOP, PIPE FREEZE & VALVE INSERTION EXPERTS. Koppl Pipeline Services honors a legacy that has lasted for generations by bringing time-honored standards of quality and service to a modern age. Whether it’s the latest tool or technique, or one that hasn’t changed in 50 years, Koppl Pipeline Services is committed to ... Here are key mistakes to avoid when installing SharkBite push fittings and how to ace the process to achieve a secure connection. 1. Unprepared Pipes. A sound connection all starts with the pipe. For the best results, examine the quality of your pipe and cut, deburr, mark and clean it as needed. Cut. The unexploded pipe bombs will be important clues as law enforcement's investigation progresses. As a rash of suspicious packages have been found across the US today (Oct. 24), bom...Follow along to see how to prepare a smocked insertion before you sew it into your garment. In this video, Susan is working with our Mary De pattern.🛍️ OUR ... ….

Solve Your Water Expansion, Repair, & Insertion Problems. With offices in Iowa and Nebraska, Municipal Pipe Services has the equipment and expert staff to be able to provide pipe and distribution services to companies around the nation in a variety of industries. We can confidently work on virtually any type of pipe system, including but not ...Follow along to see how to prepare a smocked insertion before you sew it into your garment. In this video, Susan is working with our Mary De pattern.🛍️ OUR ...Scope. 1.1 This guide describes design and selection considerations and installation procedures for the rehabilitation of sanitary and storm sewers by the insertion of solid wall or profile wall or corrugated polyethylene pipe into an existing pipe and along its existing line and grade. The procedures in this guide are intended to minimize ...Pipe insertion depth in the powder and vibration parameters (frequency and amplitude) play important roles in the force chain formation in the particle system, which is necessary to achieve motion. In order to apply this novel approach to convey granular material, there are still some issues that need to be clarified, such as how to optimize ...A superseal insert adds an extra line of defence to fittings and pipes. What makes them unique is the fact that they feature two additional O-ring seals compared to plain inserts. One of these is located on the stem, which is pushed into the pipe to prevent water from inside the pipe passing between the inside of the pipe wall, and the outside surface of the insert.Wood heat is a great way to keep your home warm in the winter months. If you’re thinking about relying on wood heat in your house, you may want to consider a fireplace insert. Here...Tube-Connecting Nuts. Push inside tubes to join them with a threaded stud instead of welding. 21 products. Weld Nuts. Weld to metal surfaces to add permanent threads. 133 products. Choose from our selection of threaded tube inserts, including over 90 products in a wide range of styles and sizes. In stock and ready to ship.Vertigo Z-Pipe Insert. The Z-Plus pipe flame insert fits most of the fluid lighter cases. Turns an ordinary lighter into a pipe lighter and emits a traditional soft flame with a single action ignition. The clear fuel tank body easily see the fuel level and has a large flame adjuster. It is packaged in a peggable clamshell. Pipe insertion, That insertion took seven hours. A third pipe has now been welded to the second one and is being pushed in through the US-made jack and push earth auger machine. More than 12 metres of the pipe ..., 3.2.6 One or more receiving pits shall be excavated at the end(s) of the sewer pipe to be replaced or at appropriate points within the length of the existing pipe. Pit shall be centered over the existing pipe. 3.2.7 The number of pits for machine and pipe insertion shall be the minimum necessary to most efficiently accomplish the work., In today’s digital age, signing documents electronically has become increasingly popular and convenient. Whether you are signing a contract, application form, or any other legal do..., A: There should be a straight run immediately upstream of the flow meter as this reduces turbulence in the flow. Ideally, the upstream straight run will be equivalent to at least 15 pipe diameters and as short as 1 pipe diameter downstream for qTherm depending on piping conditions. Q: Does an insertion flow meter cause any pressure drop in the ..., Gmail provides a range of formatting options when sending emails. If you are composing emails for business or work, you may wish to include hyperlinks for the recipient to click in..., Advanced Valve Technologies® (AVT) is part of Critica Infrastructure, the high-performance critical infrastructure solutions company. The AVT EZ Valve ® insertion valve, can be installed on water pipelines sized from 1.5” to 24" (40mm to 600mm) without shutting off the water and in many cases, in under an hour. Our designs are innovative, minimize risk to …, Feb 25, 2021 · When comparing the size of the Sharkbite with the other it is a bit larger and extends further on both sides of the elbow. I suspect it was just different insertion depths for each elbow as neither leaked when the pipe was in the old or new Sharkbite brand elbow despite different insertion depths. Thanks for the response @SolarMike! , You can contact us directly at the following address [email protected] Tel : UK (01642) 769 789 International +44 1642 769 789. Fax : UK (01642) 769 456 ... , Schedule 40 pipes are usually used for plumbing systems, irrigation systems, drainage around buildings, ventilation systems, pool and spa systems, DIY projects, and for gas and water lines. The pressure rating for this pipe schedule is 120 to 810 pounds per second inch (PSI). The sizes of SCH 40 PVC pipes are provided below:, Following insertion, the Demo videos clearly show the deburring tool depth mark (on the pipe) aligned at the top of the release collar. According to Sharkbite, their PEX pipe is marked at 1" intervals to allow proper insertion. Again, the demo videos show the pipe (easily) inserted to the 1" mark., Request an Appointment. 443-997-6467 Maryland. 855-695-4872 Outside of Maryland. +1-410-502-7683 International. Eardrums are thin pieces of tissue deep in your child's ears. The space behind the eardrum is called the middle ear. It is connected to the back of the nose by a tube. This tube is called the eustachian tube., A urinary catheter (also known as an ‘indwelling’ or ‘long-term’ catheter) is a hollow, flexible tube inserted through the urethra into the bladder to drain urine into an external collection bag. Once the catheter has been inserted, a small balloon on the internal end is inflated with sterile water to keep it in situ., Table 2 Insertion depths for ProPress ½" to 2" no-stop couplings ___24 Table 3 Insertion depths for ProPress ½" to 2" extended no-stop couplings_____24 Table 4 Insertion depths for ProPress 2½" to 4" no-stop couplings __25 Table 5 Minimum distance between press fittings_____ 25, These pipe plugs are good for up to 65 PSI and are designed to be pushed into the pipe and actuated from outside the pipe. NEED TO SEAL A PIPE BUT ONLY HAVE SMALL ACCESS TO INSERT / REMOVE THE PIPE PLUG — Use the Qwik-Fit Cylinder Plugs when there is a need to hold back small amounts (low pressure) of water with reduced access to the pipe., Pipe Insertion Depth and Size ChartSharkBite push-to-connect fittings are compatible with PEX, copper, CPVC, PE-RT and HDPE pipe. We also offer transition push-to-connect transition fittings for PVC and polybutylene pipe types., The ISM 5.0 Insertion Magmeter installs in the pipe through a full port ball valve so the sensor can be easily retracted without having to shut down flow or drain the system . The insertion depth is adjustable according to the pipe diameter. An insertion depth gage is supplied with each flowmeter. The optional Standard Installation Hardware Kit ..., Aug 19, 2021 · Ear tube insertion, also known as tympanostomy tube insertion, is the placement of a pressure equalizer tube into the tympanic membrane (see the image below). [ 1, 2] This surgical procedure treats middle ear fluid, which, when it persists in the middle ear space, can cause otitis media (acute or chronic) in addition to hearing loss. , Failing to deburr the pipe properly can cause the fitting to fail. Measure and mark the insertion depth. Using your deburr and gauge tool, measure and mark the proper insertion depth on your pipe. Make the connection. Push the fitting to the insertion mark on the pipe. Now, turn on the water and check the connection. How to Remove a SharkBite ..., 2. A method as claimed in claim 1 in which the leading porti of the first pipe is temporarily sealed during insertion of t first pipe to prevent fluid flow along the first pipe until t first pipe has been inserted while a flow of fluid is maintain through the second pipe. 3., Here are some answers about thermowell selection, placement, and installation. 1. Insertion length for a thermowell. The right length for a thermowell largely depends on the diameter of the pipe or tube. One rule of thumb is to insert a thermowell anywhere from one-third to two-thirds of the way into the fluid stream., Exhaust Insert (1) Exhaust Insulator (1) Exhaust X Pipe (3) Exhaust Flange (4) Exhaust Turndown (4) Exhaust Y Pipe (5) Exhaust Elbow (9) Exhaust Pipe (23) ... Over time, your exhaust pipe and adapter can deteriorate from damage-causing elements such as road conditions and extreme weather conditions. Leaks in the exhaust system can cause ..., Live Mains Insertion is similar to normal insertion of new polyethylene (PE) pipe into an old low pressure cast iron main with one major benefit. By using a ..., From the Manufacturer. LASCO Plumbing Specialties 17-0911 is a 1/4-Inch Hard Plastic Tube Sleeve and Insert Kit 4 Piece. Brass tube inserts and plastic compression sleeve. Lead free brass construction. Lead free approved product in all states. For use with poly tube compression connection. 1/4-Inch OD tubing 4pc kit., Piping or tubing is usually inserted into fittings to make connections. Connectors are assigned a gender, abbreviated M or F. An example of this is a "3 ⁄ 4-inch female adapter NPT", which would have a corresponding male connection of the same size and thread standard (in this case also NPT).Common piping and plumbing fittings. This section discusses fittings primarily used in pressurized ..., Insertion mag meters use the same concept of "average velocity point" that the insertion paddlewheel does and are about as accurate. Where a spool-piece magnetic flowmeter can reliably be assumed to be close to 0.5% of rate accuracy, an insertion mag meter can often be 10% or 15% of rate, or worse., The insertion length “U” is always equal to or larger than the immersion length “R” of a thermowell. API RP 551: TW installed perpendicular to the pipe wall should have a minimum immersion length of 2 inches. A general thumb rule is to use an immersion length equaling a minimum of 10 times the diameter of the thermowell. , The trenchless construction methods available for new facilities are divided into two main classes: Horizontal Earth Boring, which is performed without workers being inside the borehole, and Pipe Jacking / Utility Tunneling, which require workers inside the borehole during the excavation and casing processes., The pipe then passes through the angled 316 stainless steel grab ring, which has teeth that are angled to allow pipe to push through but not pull out. This allows for a tool-free pipe insertion and a strong secure connection. O-ring and protector. Next, the pipe is aligned with the SharkBite o-ring protector., Cross-linked polyethylene (PEX) Tubing to Metal Insert Insert and Plastic Insert Fittings • CSA B137.5 - Cross-linked Polyethylene (PEX) Tubing Systems for Pressure Applications • ANSI/AWWA C904-06 - AWWA Standard for Cross-Linked Polyethylene (PEX) Pressure Pipes 1/2 inch (12 mm) through 3 inch (76 mm) for Water Service, YOUR HOT TAP, LINE STOP, PIPE FREEZE & VALVE INSERTION EXPERTS. Koppl Pipeline Services honors a legacy that has lasted for generations by bringing time-honored standards of quality and service to a modern age. Whether it’s the latest tool or technique, or one that hasn’t changed in 50 years, Koppl Pipeline Services is committed to ..., Thermowells are sold by insertion length, which is the length of the thermowell inside the pipe. Fig 1 shows a 4” thermowell; notice that the 4” dimension is an approximate insertion length that is based on a schedule 80, 8” diameter pipe (see Table 1 and Fig 2)., International Flow Technologies, Inc. (IFT) has over 40+ years of experience in Hot Tapping, Line Stopping, Pipe Freezing and has had a crucial role in the development of the Insert Valve.IFT worked alongside design engineers to help create a resilient seated insertion valve, of simple design, that meets and/or exceeds the AWWA C515 specification., Its a first year plumbing/pipe fitting So to clarify. I need to have a 1/2" black iron pipe that is 12" center to center. I need to thread the pipe myself and have two 90's of both ends. I am having trouble getting the pipe to thread on and stay at 12". I cut the pipe at 10 5/8" with the math of the thread engagement.