PSI Mechanical Couplings

Transcription

1 Pipeline Accessories PSI Mechanical Couplings Systems Permasert and PermaLock Permasert and Permalock are Elster Perfection registered trade marks General Information Technical Data Installation Instructions 1

2 PSI Mechanical Couplings - System Permasert The System Permasert is an Elster Perfection registered trade mark Permasert coupling: Moulded from PE 100, DVGW VP 600 certified. The Permasert coupling exceeds the requirements of EN and EN 682. Thrust washer: Provides even distribution of force on the collet. Support ring: Stainless steel ring moulded into body of coupling for added strength and support of gripping collet. Zinc-plated steel insert stiffener guarantees proper alignment and adds support. Moisture and dirt seal: Prevents intrusion of dust, dirt and moisture. Conical clampring prevents pipe pull-out. Sealing elements: NBR (Nitrile) elastomer seal provides permanent leak-proof connection. Spacer retainer ring: Guarantees precise centring of pipe and increases clamping form. Technical Data Body Gas-tight PE 100 in accordance with DVGW AB G 260 tested and certified. Stainless steel gripping support ring Gripping collet Thrust washer Sealing elements Insert stiffener Acetal (POM) Polyethylene (PE) NBR (Nitrile) Spacer retainer ring: Acetal (POM) Zinc-plated carbon steel Tests in accordance - Materials with DVGW-VP600 - Internal pressure creep rupture test - Depression and overpressure tightness - Thrust resistance - Pull-out resistance - Bending strength Pressure rating Tested and approved up to MOP 10 bar Sizes O.D. 20 to O.D. 63 for PE pipes SDR 11 O.D registered in accordance with DVGW VP600 rules DVGW register number: DG-7521BS0052

3 PSI Mechanical Couplings - System Permasert Technical Information Since its introduction the Permasert coupling has become the number one mechanical coupling in the world. With a 35-year track record and over 45 million Permasert couplings in use in every conceivable climate and soil condition, our Permasert products are still the number one choice for safe, reliable performance. Permasert saves time and money Permasert mechanical couplings offer significant savings in total installation costs compared to alternate connection methods. Why? It's simple. Permasert takes one person only a few minutes to install... without any expensive equipment. All you do is cut the PE-X/PE pipe, chamfer the end, mark the proper insertion depth and insert the PE-X/PE pipe into the coupling. That's it. No torque requirements and no special tools. Fast, safe and easy. Permasert couplings simplify repairing damaged service lines. Installing a blind end cap allows for easy future connections. The benefits at a glance: Only appropriate for PE 80/100 and PE-X in compliance with the SDR11 series Fast and easy installation, requires only one person All-weather installations No need for electricity on the building site Lower total installation cost compared with sleeve welding or butt welding of PE pipes with incorporated heating elements No special tools and no costly equipment required for installation Smaller pipe trench required Non-corrosive components Minimal stress on PE/PE-X pipe Safe, dependable performance for over 30 years. Easiest method for installation of EFVs into the service line. Field studies prove Permasert couplings save as much as 50% of the installation time and cost compared to traditional fusion methods. Permasert outlets make house service connections fast and easy. Our complete system... main to house lead-in combination The complete mechanical polyethylene gas distribution system for a complete main to house lead-in combination connection. This family of easy-to-install products incorporates our Permasert couplings and allows you to make fast and safe pipe connections without the use of special tools or expensive equipment. To complement the wide variety of couplings we offer the Perma- Lock mechanical tapping tee, moulded parts and the Perfection excess flow valves (gas-stop). These products also feature the proven Permasert coupling system. Description Permasert coupling for PE/PE-X SDR11 O.D. Pipe PE/PE-X Article No. SDR11* 20 mm mm mm ** 40 mm ** 63 mm ** * O.D. 20 and 25 for 3mm wall thickness **DVGW tested

4 PSI Mechanical Tapping Tee - System PermaLock The System Upper part NBR sealing element Technical Data: Body Upper part/lower part/cap The PE 100 gas bearing components are manufactured, tested and approved in accordance with DVGW-AB-G260, DVGW-AB-335 A2 and the EN1555 standard. Lower part Tapping cutter Sealing elements The NBR elastomer components are certified in accordance with the require ments of the EN 682 standard. Cap Stainless steel screw + washer Tapping cutter Screw + washer Punch and spacer are made of zincplated steel. After the assembly the punched out PE piece from the main is firmly tightened in the punch. The 5 mm hexagon socket screw and the washer are made of stainless steel 304 (A2). PermaLock is an Elster Perfection registered trade mark The PermaLock mechanical tapping tee offers the technician a unique combination of security, reliability and working speed when connecting a service line to the main gas pipe. The PermaLock tapping tee can be installed in all weather conditions without shutting off the main. Test in accordance with DVGW VP304 - Internal pressure creep rupture test - External tightness - Strength - Torsion - Fitness for use - Relaxation behaviour - Materials Pressure rating Tested and approved up to MOP 10 Sizes O.D. 63, O.D. 90, O.D. 110 DVGW registration: DG-4511BT0205 DVGW registration: DG-4511BT0205 according to VP 304

5 PSI Mechanical Tapping Tee - System PermaLock Technical Information The benefits at a glance: Easy, fast and safe method for connection of PE service line to the gas distribution system Moulded from PE 100 Torsion security thanks to steel sleeve inside PE main pipe wall Unique, ratchet-like cutting tool for connecting tapping tee to main Also available with integrated excess flow valve (gas-stop) Available with Permasert coupling Easy installation by one person in all weather conditions. No need for electricity or equipment as required for PE fusion methods Low total cost for the connection to the gas distribution system compared with fusion methods The PermaTite cap closes the installation. No wrench required (stop device) Permanent O-ring seals For PE 80/100 main lines Fibre-free non-cutting tapping DVGW register number: DG-4511BT0205 according to VP 304 Description O.D. Main O.D. Outlet Article No. PE SDR11*** PermaLock mechanical tapping tee with integrated Mertik Maxitrol excess flow valve type Z**** 63 mm 90 mm 110 mm 32 mm * 63 mm * 32 mm** mm mm** mm PermaLock mechanical tapping tee 63 mm 90 mm 110 mm 20 mm * 25 mm * 32 mm mm * 63 mm * 20 mm * 25 mm * 32 mm** mm mm mm * 25 mm * 32 mm** mm mm * Special item; please note delivery time depending on the order ** DVGW reg. no. DG-4511BT0205 according to VP 304 *** O.D. 20 and 25 for 3mm wall thickness **** Further EFV types (e.g. RMA) on request

6 PSI Mechanical Repair Couplings - System Permasert Technical Information Permasert repair couplings made of PE 100 (EN 1555) are noncorrosive. They cut repair time by 50 to 75 %. The repair can be safely completed within a few minutes while eliminating the need for expensive fusion equipment and excessive excavation. The crew simply locates the damaged pipe section, determines the coupling size required, cuts out the damaged section, and installs the repair coupling. The benefits at a glance: Installation by one person in all weather conditions Fastest method of repair for PE-X/PE pipe Smaller trench size compared to PE fusion methods One piece construction - no single parts O.D. Pipe Pipe Length Article no. PE SDR11*** 300 mm * 20 mm 400 mm * 600 mm * 900 mm * 300 mm * 25 mm 400 mm * 600 mm * 900 mm * 300 mm * 32 mm** 400 mm mm * 900 mm mm * 32 mm** 400 mm including sliding function 600 mm * 900 mm mm * 40 mm** 400 mm including sliding function 600 mm * 900 mm mm * 63 mm** 400 mm including sliding 600 mm * function 900 mm * Special item; please note delivery time depending on order ** DVGW register number: DG-7521BS0052; type of test: DVGW VP 600 *** O.D. 20 and 25 for 3mm wall thickness No electricity or other installation equipment required Moulded from proven PE 100 (EN 1555) Standard diameters from 32 mm to 63 mm Reducing repair time by up to 75%, thus significantly cutting labor costs Reduction of excavation and restoration costs Less overall installation cost compared to PE welded joints or press fits Fast and easy installation in less than a minute Non-corrosive couplings and components provide outstanding long term performance Minimal stress on PE-X/PE pipe Safe, dependable performance for more than 30 years with over 45 million Permasert couplings installed around the world Couplings have a pull-out strength greater than the connected PE pipe Repair coupling sliding function starting from pipe O.D. 32 mm:

7 PSI Couplings with Integrated Excess Flow Valve (Gas Stop) Technical Information SENTRY GS excess flow valves for gas service lines shut off the gas flow when the flow reaches a predetermined flow rate. The G459-1-B process sheet (supplementary sheet to DVGW G process sheet) requires the installation of an automatically closing component (e.g. excess flow valve) inside the house service connection. The benefits at a glance: Easy re-fitting thanks to Permasert coupling SENTRY GS multiple-range excess flow valves type Z can be used for different system pressures from 35 m bar to 5 bar Pressure changes do not require a replacement of SENTRY GS Logistic benefits for gas suppliers - only one component per nominal size The use of metallic components achieves long-term functional GS stability Low closing factor in all installation situations for the protection of long pipes SENTRY GS are factory-adjusted and tested 100% The Permasert couplings with SENTRY GS excess flow valves have been developed, in particular, for the gas distribution conditions in Germany and designed for an operating pressure range of 25 mbar to 5 bar. This multiple-range excess flow valve largely covers the type A/D, B and C pressure ranges in accordance with VP The excess flow valve closes when it reaches the closing flow rate Vs. It does not close with flow rates below the closing flow rate. An overflow orifice inside the closing body permits automatic reopening. It is covered when the excess flow valve is open and therefore protected from contamination. Description O.D. Pipe Article No. PE-X/PE SDR11* Excess flow valve Permasert Mertik Maxitrol type Z 35 up to 5 bar 32 mm mm SENTRY GS with close-tolerance overflow orifice for short reopening periods Large insensitivity against gas contamination such as dry dust, steel and plastic chips proven by independent inspecting authorities. The overflow orifice is protected when it is open. High-quality stainless steel spring with long-term stability Simplified traceability ID card for type determination included in the delivery SENTRY GS are available integrated into couplings and tapping fittings Optimized fastening of SENTRY GS by means of PE ring for stressless diameter adjustment * O.D. 20 and 25 for 3mm wall thickness open closed DVGW register number: GS type Z DG-4360BO0438 Overflow orifice (VL) PE ring O-ring Function display of a SENTRY GS excess flow valve integrated into a coupling Assembly during re-fitting as for Permasert repair couplings Source: Mertik Maxitrol

8 PSI Mechanical Couplings - System Permasert Products/Components The non-corrosive blind end caps and blind end stubs safely shut off gas distribution or the end of a service line. Blind end stubs can shut off gas distribution permanently while the functional blind end caps at the blind end are equipped with Permasert components so that the gas line can be reconnected at a later date by simply removing the cap. Permasert blind end stubs and blind end caps are some of the most frequently requested mechanical couplings because they enable extraordinary cost savings and a maximum of reliability compared with other methods of service line cut-offs. Description O.D. Pipe Article No. PE/PE-X SDR 11* Blind end stub Permasert 20 mm ** 25 mm ** 32 mm mm mm The benefits at a glance: The caps have a moulded-in cut line at the removable head (Permasert components on both sides of the coupling) A warning label is attached to the closed side of the blind end stub One piece construction The blind end stubs permit a fast, safe and permanent shut-off of service lines Lower total installation cost compared with sleeve welding or press fit Fast and easy installation in less than a minute Installation by one person in all weather conditions Functional end cap Permasert 20 mm ** 25 mm ** 32 mm mm mm Installing a blind end cap allows for easy future connections. Reductions Accessories Description From To O.D. Pipe Article No. O.D. Pipe PE/PE-X SDR 11* Permasert reducing coupling 25 mm 20 mm ** 32 mm 20 mm ** 32 mm 25 mm ** 40 mm 20 mm ** 40 mm 25 mm ** 40 mm 32 mm mm 32 mm mm 40 mm Description PE scissors 40mm PE scissors 63mm Chamfering tool mm Chamfering tool mm Chamfering tool 40 mm Chamfering tool 63 mm Article No ** Bends Description O.D. Pipe Article No. PE/PE-X SDR 11* * O.D. 20 and 25 for 3mm wall thickness ** Special item; please note delivery time depending on the order 90 bend 20 mm ** 25 mm ** 32 mm mm mm

9 PSI Mechanical Couplings - System Permasert DVGW reg. no.: DG-7521BS0052 Appropriate for PE pipes in accordance with DVGW process sheet GW335-A2 (PE 80 MOP 4 / PE 100 MOP 10 SDR 11* 11) following VP 600 Installation Instruction Clean pipe with a clean dry cloth. Inspect the PE pipe for damages. Cut PE pipe square after inspection of PE pipe for damages (grooves, cracks). If there are any damages cut another piece of the pipe to remove the defective area. In case of surface damages of the PE pipe, the PE pipe sealing area can be machined with a rotating scraper. The limit of the machined PE pipe must not be underrun in accordance with the DVGW process sheet GW 335-A2; it must be observed. Use Perfection chamfering tools or equivalent tools to obtain a correct, tapered chamfer of the outer diameter. This chamfer enables insertion of the pipe without problems and without damaging the seals. Use a soft felt pen, a pencil or wax crayon to mark the stab depth. The stab depth of all Permasert couplings is the distance between the edge of the skirt and the end of the Permasert coupling. Insert the PE pipe (SDR 11) in the Permasert coupling up to the stab mark. The pipe must be inserted in the coupling up to the stop. Carry out normal pressure testing at the connection. The reference marks can move several mm to the exterior during the pressure test. Note: This product must be mounted by trained personnel. Permasert is an Elster Perfection registered trade mark

10 PSI Mechanical Repair Couplings - System Permasert Appropriate for PE pipes in accordance with DVGW process sheet GW335-A2 (PE 80 MOP 4 / PE 100 MOP 10 SDR 11) Installation Instruction Select the appropriate repair coupling depending on the length of the damaged pipe section and mark the length of the area to be repaired. Cut the damaged pipe section (observe warning note on the fitting) with the PE scissors or an equivalent cutter so that the ends are flat. Mark the stab depth at the corresponding distance from the chamfered ends with a soft felt pen, a pencil or a wax crayon. The stab depth can be determined by measuring the distance from the end of the coupling to the second welded seam at the end of the coupling provided with the warning note. Mark the short end of the coupling at the other end of the pipe to the first welded seam. First slide the end of the coupling provided with the warning note onto the pipe up to the stop. Pull back the repair coupling to the end of the other pipe and slide it onto the pipe up to the stop. Test connection for tightness. In doing so, proceed according to our standard process instruction. The reference marks can move several mm to the exterior during the pressure test. Permasert is an Elster Perfection registered trade mark Note: This product must be mounted by trained personnel.

11 PSI Mechanical Tapping Tee - System PermaLock DVGW reg. no.: DG-4511BT0205 (restriction to d32 outlet) Appropriate for PE pipes in accordance with DVGW process sheet GW335-A2 (PE 80 MOP 4 / PE 100 MOP 10 SDR 11) Tested in accordance with VP-304 Installation Instruction Clean pipe surface of PE 80, PE 100 in the installation area of tapping tee. This pipe section must not display any grooves, cracks or other damages. In case of surface damages of the PE pipe, the PE pipe sealing area can be machined with a rotating scraper. The limit of the machined PE pipe must not be under-run in accordance with the DVGW process sheet GW 335-A2; it must be observed. Wet lower O-ring and pipe surface with soap solution or the like (as used e.g. for tightness tests). Mount tapping tee to PE pipe. In doing so, tighten screws crosswise until both flange halves are in contact at the four corners (a gap between both halves in the area of the guide pin is permitted). Connect house service connection of PE 80, PE 100 to Permasert coupling of the tee (upper half of the body) according to the Permasert coupling installation instructions. Test tightness of connection between pipe and tee in accordance with own rules. Place supplied spacer on cutter. Thread cutter downward using appropriate hexagon socket wrench (8 mm) until firmly seated. In doing so, a disc is cut from the pipe and permanently held in the cutter. The tapping diameter is 14 or 20 mm depending on the construction. When the spacer is flush with the top of the tee the tapping process is finished. Max. volume flow 6.0 m3/h at 25 mbar, inlet pressure based on 14 mm tapping and d32 outlet. Note: This product must be mounted by trained personnel. Thread cutter upward (counter clockwise) until the top of the cutter is flush with the top of the body. In doing so, the house service connection is supplied with gas (spacer comes out). Fit closure cap and tighten manually to stop. PermaLock is an Elster Perfection registered trade mark