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Ductile Iron Pressure Sustain Valve With Nylon - Reinforced Diaphragm

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Ductile Iron Pressure Sustain Valve With Nylon - Reinforced Diaphragm

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Brand Name : AFC

Model Number : A500

Certification : EN1074-5

Place of Origin : China

MOQ : 1

Price : USD / RMB

Payment Terms : L/C, T/T

Supply Ability : Based on order

Delivery Time : 15-60 days

Packaging Details : Plywood cases

Material : Ductile iron - GJS500-7

Pilot Material : SS304

Standard : EN1074-5

Coating : EPOXY

Diaphragm : Nylon Reinforcement with EPDM

Rubber : EPDM

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Water Pressure Sustaining Relief Valve Ductile Iron EPOXY Coated With Stainless Steel 304 Pilot Operated

Description:

A500 can protects system from overpressure by exhausting excess pressure. The valve may only have to
operate intermittently to prevent pressure surges that might occur on pump start, pump stop, or sudden downstream valve closure.

When A500 Installed in the main flow line,it acts as a backpressure or pressure sustaining valve. In this configuration, the valve maintains a constant upstream pressure regardless of fluctuating downstream demand.

Feature:

Operates automatically off line pressure

Nylon-reinforced diaphragm.

Easily maintained without removal from the line.

Replaceable seat ring.

Size DN50-DN800
Working Temperature - 10C- 80C
Flange AISI B16.1 Or PN16
Flow Media Clean Water

Materials And Dimension

DN50-DN350

Ductile Iron Pressure Sustain Valve With Nylon - Reinforced Diaphragm

No Description Material Standard
1 Body Ductile Iron GJS500-7
2 Seat Stainless Steel ANSI 304/316
3 O-ring Rubber NBR
4 O-ring Rubber NBR
5 Bolt Stainless Steel A2/A4
6 Washer Stainless Steel A2/A4
7 Bonnet Ductile Iron GJS500-7
8 Bush Bronze C61900
9 Spring Stainless Steel ANSI 304/316
10 Caulking Nut Stainless Steel A4
11 Diaphagm Nylon Reinforced Rubber EPDM+Nylon Fabric
12 Fixing holder Ductile Iron GJS500-7
13 Disc Holder Ductile Iron GJS500-7
14 Seal Rubber EPDM
15 Seat Retainer Stainless Steel ANSI 304/316
16 Stem Stainless Steel ANSI 304/316
17 Plug Stainless Steel ANSI 304/316
18 Screw Stainless Steel A2/A4
19 Plug Stainless Steel A2/A4
20 Wsher Stainless Steel A2/A4

Dimension Unit:MM
DN Model Code L φD Φk H N-φd ΦB
PN10 PN16 PN25 PN10 PN16 PN25 PN10 PN16 PN25 PN10 PN16 PN25
50 A900-0050 230 165 165 165 125 125 125 177 4-φ19 4-φ19 4-φ19 φ99 φ99 φ99
65 A900-0065 290 185 185 185 145 145 145 202 4-φ19 4-φ19 8-φ19 φ118 φ118 φ118
80 A900-0080 310 200 200 200 160 160 160 219 8-φ19 8-φ19 8-φ19 φ132 φ132 φ132
100 A900-0100 350 220 220 235 180 180 190 243 8-φ19 8-φ19 8-φ23 φ156 φ156 φ156
*125 A900-0125 400 250 250 270 210 210 220 243 8-φ19 8-φ19 8-φ28 φ156 φ156 φ156
150 A900-0150 480 285 285 300 240 240 250 333 8-φ23 8-φ23 8-φ28 φ211 φ211 φ211
200 A900-0200 600 340 340 360 295 295 310 428 8-φ23 12-φ23 12-φ28 φ266 φ266 φ274
250 A900-0250 730 405 405 425 350 355 370 478 12-φ23 12-φ28 12-φ31 φ319 φ319 φ330
300 A900-0300 850 460 460 485 400 410 430 538 12-φ23 12-φ28 16-φ31 φ370 φ370 φ389
*350 A900-0350 980 520 520 555 460 470 490 550 16-φ23 16-φ28 16-φ34 φ429 φ429 φ448
Note 1.DN125 DN350 use same internel as DN100 DN300
2.A1SI 304 factory standard material. Consult factory for AISI 316material

DN400-DN800

Ductile Iron Pressure Sustain Valve With Nylon - Reinforced Diaphragm

No. Description Material Standard
1 Body Ductile Iron GJS500-7
2 Seat Stainless Steel ANSI 304/316
3 Screw Stainless Steel A2/A4
4 Screw Stainless Steel A2/A4
5 Screw Stainless Steel A2/A4
6 Spring Stainless Steel ANSI 304/316
7 Bonnet Ductile Iron GJS500-7
8 Bush Bronze C61900
9 O-ring Rubber NBR
10 Fix Washer Bronze C61900
11 Diaphagm Nylon Reinforced Rubber EPDM+Nylon Fabric
12 Eye Bolts Carbon Steel 1040
13 Fix Holder Ductile Iron GJS500-7
14 Disc Holder Ductile Iron GJS500-7
15 Seal Rubber EPDM
16 Seal Retainer Ductile Iron GJS500-7
17 Stem Stainless Steel ANSI 304/316
18 Plug Stainless Steel ANSI 304/316
19 O-ring Rubber NBR
20 Cap Ductile Iron GJS500-7
21 Plug Stainless Steel ANSI 304/316
22 Screw Stainless Steel A2/A4
23 O-ring Rubber NBR
24 Screw Stainless Steel A2/A4
Dimension Unit:MM
DN Model Code L H φD Φk N-φd ΦB
PN10 PN16 PN25 PN10 PN16 PN25 PN10 PN16 PN25 PN10 PN16 PN25
400 A900-0400 1100 710 580 580 620 515 525 550 16-φ28 16-φ31 16-φ37 480 480 503
*450 A900-0450 1200 720 640 640 670 565 585 600 20-φ28 20-φ31 20-φ37 530 548 548
500 A900-0500 1250 822 715 715 730 620 650 660 20-φ28 20-φ34 20-φ37 582 609 609
600 A900-0600 1450 885 840 840 845 725 770 770 20-φ31 20-φ37 20-φ40 682 720 720
*700 A900-0700 1650 910 910 910 960 840 840 875 24-φ31 24-φ37 24-φ43 680 720 720
800 A900-0800 1850 1260 1025 1025 1085 950 950 990 24-φ34 24-φ40 24-φ49 901 901 928
Note 1.DN450 DN700 use same internel as DN400 DN600
2.A1SI 304 factory standard material. Consult factory for AISI 316material

Product Tags:

pressure relief valve

      

constant pressure valve

      
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