DN250 Cast Steel Wafer Check Valve 10 Inch PN20 API594 Dual Plate
Check Valve A351 CF8 Stainless Steel Check Valve
Retainerless design valves are standard in VERVO dual plate check
valves; we also can provide valves with retainer plug upon request
| Item | Dual Plate Wafer Check Valve |
| Certification | ISO9001,ISO14001,ISO18001,TS,CE,API |
| Brand | VERVO |
| Model number | H71W-PN20-10INCH |
| Port Size | 10inch/DN250 |
| Structure type | Retainerless Design Dual Plate Wafer Check Valve |
| Pressure | PN20 |
| Temperature | -46-325 |
| Connection form | Wafer Type End |
| Material | Casting Steel Stainless Steel A351 CF8 |
| Feature | Easy disassembly |
Retainerless design
VERVO dual plate check valves are offered as retainerless in wafer,
lug, flanged, hub end, butt-weld end and thread end body style.
Certificate
All product registered by LR’s in accordance with CE/PED.
API 594 and API 6D certificate issued by American Petroleum
Institute.
Inherently fire safe design
All VERVO check valves are inherently fire safe due to the valve
design, material and construction. In case of fire, both resilient
seat and metal seat valves provide metal to metal sealing
performance.
Light weight and reduced size
Installation costs are greatly reduced by VERVO’s light weight and
minimal space requirements. The compact design minimizes the
distance between flanges and is easily installed between all
flanges.
Horizontal/Vertical installation
Unlike most traditional swing check valves, VERVO check valves are
ideal for both horizontal and vertical pipeline installation.
STANDARD
| Design & Manufacture | API 594 ,ASME B16.34,API 6D |
| Face-to-face | API 594, ASME B16.10 |
| End Dimension | ASME B16.5 (RF) ASME B16.47 (RF),MSS SP-44 (NPS 22 Only) |
| Test & inspection | API 598, API 6D, ISO 5208 |
TYPICAL MATERIAL
| Body,Disc | A216 WCB, WCC, A217 WC6,WC9 A351 CF3, CF8, CF3M, CF8M, A995 4A, 5A,Monel, Inconel, Hastelloy |
Seat |
FKM, HNBR, EPDM, |
| Pin | A276 410, 304, 316, |
| Spring | Inconel x750 |
| ASME CLASS 150 (PN 20) | | ASME CLASS 300 (PN 50) |
Size
in/mm | D | L | Weight (lb/kg) | | Size
in/mm | D | L | Weight (lb/kg) |
| WAFER / LUG | WAFER | WAFER / LUG | WAFER |
2
50 | 2
50 | 2.36
60 | 4
2 | 2
50 | 2
50 | 2.36
60 | 7
3 |
2 ½
65 | 2 ½
65 | 2.64
67 | 7
3 | 2 ½
65 | 2 ½
65 | 2.64
67 | 9
4 |
3
80 | 3
80 | 2.87
73 | 9
4 | 3
80 | 3
80 | 2.87
73 | 13
6 |
4
100 | 4
100 | 2.87
73 | 11
5 | 4
100 | 4
100 | 2.87
73 | 18
8 |
6
150 | 6
150 | 3.86
98 | 29
13 | 6
150 | 6
150 | 3.86
98 | 40
18 |
8
200 | 8
200 | 5
127 | 55
25 | 8
200 | 8
200 | 5
127 | 84
38 |
10
250 | 10
250 | 5.75
146 | 86
39 | 10
250 | 10
250 | 5.75
146 | 112
51 |
12
300 | 12
300 | 7.13
181 | 119
54 | 12
300 | 12
300 | 7.13
181 | 170
77 |
14
350 | 14
350 | 7.24
184 | 176
80 | 14
350 | 14
350 | 8.74
222 | 258
117 |
16
400 | 16
400 | 7.52
191 | 258
117 | 16
400 | 16
400 | 9.13
232 | 419
190 |
18
450 | 18
450 | 8
203 | 359
163 | 18
450 | 18
450 | 10.39
264 | 441
200 |
20
500 | 20
500 | 8.62
219 | 729
331 | 20
500 | 20
500 | 11.5
292 | 584
265 |
24
600 | 24
600 | 8.74
222 | 837
380 | 24
600 | 24
600 | 12.5
318 | 903
410 |
28
700 | 28
700 | 12
305 | 969
440 | 28
700 | 28
700 | 12
305 | 1145
520 |
30
750 | 30
750 | 12
305 | 1189
540 | 30
750 | 30
750 | 14.5
368 | 1278
580 |
36
900 | 36
900 | 14.5
368 | 1872
850 | 36
900 | 36
900 | 19
483 | 1960
890 |
40
1000 | 40
1000 | 17
432 | 2533
1150 | 40
1000 | 40
1000 | 22.36
568 | 2621
1190 |
48
1200 | 48
1200 | 20.63
524 | 3524
1600 | 48
1200 | 48
1200 | 24.76
629 | 3744
1700 |
(1)The dimension and weights are for reference only and subject to
change without notice.
(2)For more dimensional information, please contact our sales
representative.
FAQ
1/Do you have any Certification ?
Yes we have ISO9001-2015 and CE/PED according to Directive
2014/68/EU,fire safe certificate,ISO15848-1
2/Can we visit your factory?
Sure, we welcome you to visit our factory , check our production
lines and know more about our strength and quality.
3/Do you have quality control system?
Yes, we have ISO/PED certifications and our own quality control
laboratory.
4/Can you arrange the shipment for us?
Yes, we have designated sea freight and railway freight forwarders
with decades of experiences and we get the best price with earliest
vessel and professional service.
5/Can I get some samples?
We are glad to provide free samples to you, but the express fee
will be on your charge.
6/What is your after-sale service?
We provide after-sale service and offer 100% guarantee on our
products.
7/What is your main products?
Valve, and in order to meet different needs, we expanded our
business, we also do sanitary type products.
8/Are you trading company or manufacturer
We are factory, and welcome to visit our factory
9/What is your MOQ
No MOQ, As your request .Normal size and material we have stock
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