Wafer Check Valve Type 012 PVC-U

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Gyles Greer
6 years ago
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novel valve design with conical sealing surface for highest requirements

/ 1½'' DN200 / d225 / 8'' operating pressure max. 10 bar max.

3bar counterpressure no outlet aid required due to improved Kv value for

PN6 and PN10 PE100 SDR17* ASTM schedule 40 DN40 - DN200 ASTM schedule 80

1 novel valve design with conical sealing surface for highest requirements and long service life body disc reinforced EPDM / FPM gaskets DN40 / d50 / 1½'' DN200 / d225 / 8'' operating pressure max. 10 bar max. 60 C temperature tight as of max. 0.3bar counterpressure no outlet aid required due to improved Kv value for horizontal and vertical installation Suitable for Pipe Systems of DIN PN6 and PN10 PE100 SDR17* ASTM schedule 40 DN40 - DN200 ASTM schedule 80 DN80 - DN200 flange connections according to DIN 2501 PN10, ANSI class150 * observe installation guide for stub ends 1

2 Features Mounting and alignment O-rings integrated assembling and alignment aid with defined breaking point for easy removal after installation 2 different O-ring sizes for optimum flange sealing DIN Standard identification marks identifications marks for DIN and ANSI connections moulded into the body ANSI easy to assemble with screw centering for DIN 2501 PN10 and ANSI class150 Sealing Valve stem newly designed sealing surface. Conical sealing for high stability. O-ring undercut Torsion spring back-flushed shaft prevent deposits optional with torsion Stainless Steel spring / AISI 316 for absorbing pressure peaks spring can be retrofitted at any time without mechanical processing 2

3 DN d øa B C 141,8 159, ,4 237,2 262,3 288,8 348,3 LK DIN ø D LK ANSI 98,5 120,65 139,7 152,4 190,5 215,9 241,3 298,45 øe 15, ,2 22,2 22,2 øf 23, degrees of flap opening angle ''W'' PN , ,5 72,5 73, PN6 93,5 92, , sch 40 80,5 79, , ,5 73 sch PE 100 SDR ,5 78,5 81,5 68,5 69,5 64,5 70 3

Pressure-temperature diagram flow rate at max. opening angle with PVC PN10 pipes and water at 20 C Kv value Pressure loss 1 bar 0.001 bar DN 40 333 l/min 10.5 l/min DN 50 700 l/min 22.

4 Pressure-temperature diagram flow rate at max. opening angle with PVC PN10 pipes and water at 20 C Kv value Pressure loss 1 bar bar DN l/min 10.5 l/min DN l/min 22.1 l/min DN l/min 33.2 l/min DN l/min 55.3 l/min DN l/min l/min DN l/min l/min DN l/min l/min DN l/min l/min no outlet aids required due to improved Kv value Measurements implemented acc. to DIN EN standard 4

Installation guide The following must be noted when installing on a pump (pressure-side): no direct installation on the pump flange or downstream bends or elbows a calming zone distance of at least

5 Installation guide The following must be noted when installing on a pump (pressure-side): no direct installation on the pump flange or downstream bends or elbows a calming zone distance of at least 5x DN (nominal diameter) should be considered in front and after the valve, recommended are 10x DN Note: Wafer Check Valves without spring are not recommended for pulsing flow conditions. Wafer Check Valves with spring are the ideal solution for such applications. Stub ends in PE-100 / SDR 17 pipelines must be chamfered according to the table below DN * ø W * no chamfering required Centering the Wafer Check Valve The Wafer Check Valve is centered in the pipe via the different screw recesses for DIN2501 PN 10 and ANSI class 150 around the circumference of the body. Tightening torque of screws for flange connections DN Nm Bolts should be tightened in alternative diagonal sequence and with equal torque 1. tighten the bolts by hand in order to ensure an equal alignment of the sealing surfaces 2. first, tighten the bolts to 50% of the recommended torque in alternative sequence (diagonal) 3. then, tighten the bolts further to 80% of the recommended torque in alternative sequence (diagonal) 4. finally, tighten the bolts to the recommended torque 5

6 01 Body 02 Flap 03 Flap clip 04 O-ring, flap 05 O-ring, body frontside 06 O-ring, body backside 07 Optional spring 08 Label with technical data Spare Parts 01 Flap kit Flap Flap clips 02 O-ring set EPDM O-ring, flap O-ring, body frontside O-ring, body backside 03 O-ring set FPM O-ring, flap O-ring, body frontside O-ring, body backside 04 Spring Spring Label EPDM / FPM 6

R o L. BUTTERFLY VALVE of carbon steel with flanges series BLUE LINE. Operation. Edition

R o L. BUTTERFLY VALVE of carbon steel with flanges series BLUE LINE. Operation. Edition of carbon steel 31500 series C ont R o L Operation Edition 03-0-009 The welded butterfly valve 31500 is used for example in district heating, district cooling and industry. It can be used as an on-off