REDUCED FLOW Normally Open with flanges

PISTON VALVES

pressure operated 2- and 3 Way, Normally Open with flanges, PN32, DN 8 - 40

FEATURES

PRODUCT ADVANTAGES:

Very Compact and Robust Design

Self-Regulating Packing

Non-Corrosive Materials

High sealing effect

Universally for all Mediums

Easy Maintenance

Long Life

Energy Saving

GENERAL INFORMATION:

scrollable table

Maximum operating pressure:32 bar
Temperature range:– 30 °C to + max. 230 °C
Pilot pressure:2,5 – 3,5 bar
Operating fluids:

Steam / Saturated Steam, Superheated Water,

Gases, Vacuum

FLOW RATES – P3WR Series:

Model NumberPipe SizeDNFlow coefficient Kv
mixerdistributor
3 21 22 32 1
m3/hl/minm3/hl/minm3/hl/minm3/hl/min
NO – Normally Open
P3WR-DIN1-15A-NO½”151,9332,172,7545,842,1352,5642,68
P3WR-DIN1-20A-NO¾”203,253,344,473,353,761,684,981,68
P3WR-DIN1-25A-NO1″258,34139,037,22120,367,65127,537,45124,2
P3WR-DIN1-32A-NO1¼”3215,67261,2210,84180,713,5225,0513,49224,88

scrollable table

No. Part Name Materials No. Part Name Materials
1 Body SCS13 = 1.4308 16 Retaining Ring S60CM
2 Flange S25C = 1.1158 17 Cap Screw SUS304 = 1.4301
3 Yoke Stand FCD450 = GGG-40.3 18 Cap Screw SUS304 = 1.4301
4 Cylinder FCD450 = GGG-40.3 19 Cap Screw SUS304 = 1.4301
5 Stem SUS403 = 1.4000 20 Cap Screw SUS304 = 1.4301
6 Lower Seat Flange S25C = 1.1158 21 Packing Spring SUS304-WPB
7 U-Nut SUS304 = 1.4301 22 Spring SUP6
8 Guide Washer SUS304 = 1.4301 23 Piston Ring Teflon (PTFE)
9 Disc Adapter SUS304 = 1.4301 24 Gasket 562-1
10 Ring Washer C3602 – Brass 25 Dust Seal SUS304 + 763-1
11 Gland C3602 – Brass 26 Lower Seat Gasket 562-1
12 Gland Nut S25C = 1.1158 27 Packing 763-1
13 Guide Bushing C3602 – Brass 28 O-Ring 640
14 Piston FCD450 = GGG-40.3 29 O-Ring 640
15 Set Ring Plate SS400 30 Bolt SUS304 = 1.4301

Model Selection / Dimensions:

scrollable table

Model Number DN Rc L Flange Size (DIN-Flange) L1 L2 H Weight, kg
2-Way 3-Way D C G T f Bolt
N h S
P2WR-DIN1-10A-NO P3WR-DIN1-10A-NO 10 ⅜” 146 90 60 40 16 2 4 14 M12 50 184 234 4,6
P2WR-DIN1-15A-NO P3WR-DIN1-15A-NO 15 ½” 146 95 65 45 16 2 4 14 M12 50 184 234 6
P2WR-DIN1-20A-NO P3WR-DIN1-20A-NO 20 ¾” 146 105 75 58 18 2 4 14 M12 66 250 316 9,3
P2WR-DIN1-25A-NO P3WR-DIN1-25A-NO 25 1″ 167 115 85 68 18 2 4 14 M12 71 291 362 13,2
P2WR-DIN1-32A-NO P3WR-DIN1-32A-NO 32 1¼” 190 140 100 78 18 2 4 18 M16 92 314 406 19,2

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