d drvd gb - Multicycle

1 Flanged pressure reducing valve drvd Model with balanced valve and piston, guaranteeing a very high reliability and longevity. The drvd is ideal for any main pressure reducing or regulation of secondary pressure ReDuCiNg VAlVeDRVDA pplication scope:The pressure reducing valve drvd can be used on water, compressed air, airwith oil removed or all neutral maintains automatically the downstream to the set point pressure , as long asthe input pressure is drvd is insensitive to variations in upstream is particularly recommended for collective or industrial : PN16, pressure setting range : from 1,5 to 6 , pressure setting range : from 4 to 12 of sizeChoice of the DN.

2 Flanged pressure reducing valve drvd PN25 Spring kits (2 to 8 bar)Spring kits (4 to 12 bar)Seals kits (PN 16 & PN 25)Flanged pressure reducing valve drvd PN16diametersetting rangetype ref. codepackagingDN 504 to 12 barDRVD PN25L 654 to 12 barDRVD PN25L 804 to 12 barDRVD PN25L 1004 to 12 barDRVD PN25L 1254 to 12 barDRVD PN25L 1504 to 12 barDRVD PN25L model to the standard drvd above but PN25 and standard setting from 4 to 12 bar. Contact us for the delivery kits shown in the table above are available; to order, it is necessary to indicate all informations shownon the metal plate placed on the body of the drvd plateplaced on the rangetype ref.

3 CodepackagingDN 501,5 to 6 barDRVD PN16 L 651,5 to 6 barDRVD PN16 L 801,5 to 6 barDRVD PN16 L 1001,5 to 6 barDRVD PN16 L 1251,5 to 6 barDRVD PN16 L 1501,5 to 6 barDRVD PN16 L 200 (on request)1,5 to 6 barDRVD PN16L codetypeL 8/ drvd 50L 8/ drvd 65L 8/ drvd 80L 8/ drvd 100L 8/ drvd 150ref. codetypeL 12/ drvd 50L 12/ drvd 65L 12/ drvd 80L 12/ drvd 100L 12/ drvd 125L 12/ drvd 150L 12/ drvd 200diameter typeref. codeDN 50 JT/DRVDL 65 JT/DRVDL 80 JT/DRVDL 100 JT/DRVDL 125 JT/DRVDL 150 JT/DRVDL 200 JT/DRVDL bag for pressure ReDuCiNg VAlVeDRVDC ommissioning:Check that the piping on which the pressure reducing valve must be installed is clean of welding residues orother waste.

4 It is recommended to install a filter immediately upstream of the pressure reducing valve and theisolating valves upstream and installing, observe the direction of installation of the drvd shown by the arrow engraved on the order to carry out the setting of reduction unit or its maintenance, provide sufficient :Adjustable outlet pressure : - 1,5 to 6,0 bar- 2,0 to 8,0 bar (not setted up at the manufacture, see spring kits)- 4,0 to 12,0 barThe setting of the downstream pressure must be conducted at flow the lock nut to release the adjustment screw (No. 10 on the diagram below).Turn the screw in a clockwise direction for more pressure and in the sense opposite a clockwise to lowerthe gauge plugs of the device are in female 8x13 (1/4 ).

5 Maintenance:It is recommended to ask a professional to check regularly the device is designed for easy operations are conducted without removing the clean the filter placed immediately upstream of the - All the internal parts of the drvd are accessible after removing thecover and the bottom flange (No. 3 on the diagram).2 - The piston removable by unscrewing the piston screw (or nut pistondepending on the diameter of the drvd ) accessible through the bottomflange on the bottom. Provide a locking plier ( : FACOM N 500 Locking plier or a clamp) tomaintain the piston with the drvd body. Assembly the piston-maintainedwith the locking plier, you can unscrew the piston - Piston screw loose with a standard pipe wrench ( : wrenchFACOM N 72) except for the drvd diameter 125, 150 and 200 where apipe wrench type "Nervus" is necessary ( : key Nervus FACOM N 92).

6 The table below shows you the size of the piston BodyCast iron Setting screw Cadmium steel2 CoverCast iron SpringCoated steel3 FlangeCast iron12 Brace washer NBR4 Spring discCadmium steel 13 SealNBR5 Seal support Brass14 SealNBR6 ShutterBrass15 Cover screw Stainless steel7 JacketBronze16 NutCadmium steel8 RingBronze17 PlugBrass9 SeatBronzeDNPiston screwDN 5013 mmDN 6517 mmDN 8017 mmDN 10017 mmDNNutDN 12532 mmDN 15035 mmDN 20036 mmFlANgeD pressure ReDuCiNg VAlVeDRVDRe-order no. 55(22)-UK-12/11 The photographs, illustrations and descriptions contained in this brochure are given for information only. Watts Industries reserves the right to change the technical specifications or the design of these products without prior INDUSTRIES France1590 avenue d'Orange CS 10101 SORGUES 84275 VEDENE cedex - FRANCETel.

7 +33 (0)4 90 33 28 28 - Fax +33 (0)4 90 33 28 29 : (mm)H (mm)h (mm)F (mm)DRV-D5050230 30083165 DRV-D6565290 35090185 DRV-D8080310 390 100 200 DRV-D100 100 350 440 121 220 DRV-D125 125 400 560 152 250 DRV-D150 150 450 670 169 285 DRV-D200 200 550 1050 234 340 pressure reducing valve drvd - DN 50 and 65 pressure reducing valve drvd - DN 80 and 100 pressure reducing valve drvd - DN 125, 150 and 200 pressure drop curve / headloss:Technical characteristics:Body: ductile cast iron covered epoxy varnish (inside & outside).Shutter: Brass OT 58 Brace washer: NBR (Nitrile)Ring: BronzeMax. temperature: 40 CMin.

8 Working pressure (PMA) :- PN 16 : 16 bar- PN 25 : 25 bar