Flanged silencing Check Valve

Flanged Silencing Check Valve

Purpose

This valve is mounted on the pump outlet and can prevent the medium from backflow and effectively eliminate both noise and water hammer in the high building water supply, fire fighting water supply and cooling circulation water systems.

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Features

Simple structure, reliable performance; without noise at open-close, water hammer removable; easily installed and removed.

Main Performance Parameters

  • PN: PN1.6MPa.
  • Casting test: 2.4PMa.
  • Sealing test: 1.76MPa.
  • Working temperature:  ≤80°C.
  • Suitable medium: Water.

Executive Standard

  • Size of flange: GB/T 17241.6.
  • Test and inspection standard: GB/T 13927.

Main Part Materials

  • Body — Ductile iron/Grey cast iron.
  • Sealing pad— Rubber.
  • Disc— Copper alloy/ Ductile iron.
  • Stem, Spring— Stainless Steel.

Main dimensions
DN
50
65
80
100
125
150
200
250
300
350
400
450
500
L
120
130
150
165
190
210
230
245
295
380
405
425
450
D
165
185
200
220
250
285
340
405
460
520
580
640
715
D1
125
145
160
180
210
240
295
355
410
470
525
585
650
D2
99
118
132
156
184
211
266
319
370
429
480
548
609
b
19
19
19
19
19
19
20
22
24.5
26.5
28
30
31.5
n-od
4-o 19
4-o 19
8-o 19
8-o 19
8-o 19
8-o 23
12-o 23
12-o 28
12-o 28
16-o 28
16- o 31
20-o 31
20-o 32

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