Swing Stainless Steel Check Valve Bolted Cover
Check valve is also called the refux valve, no-return valve and back valve. It's a kind of automatic valve used in duct system working based on the power of fluid medium itself. The main function of this valve is to stop the medium from back of and bleeding from the container. It's also suitable for using as the duct of assistance system for supplying when the pressure is higher than main system.
Product Range:
Design Standard: BS 1868, ASME B16.34, API 6D, DIN2533
Face to Face: ASME B16.10, API 6D, EN 558, DIN 3202
End Flange: ASME B16.5, ASME B16.47, DIN2501, DIN2533
Buttwelding Ends: ASME B16.25, DIN3239
Inspection and Test: API 598, DIN3230
Nominal Size: 2" ~ 24" (DN50 ~ DN600)
Pressure Rating: ANSI 150lb-600lb
Body Materials: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
Trim: Per API 600
Structure:
No. | Parts | Material |
| Carbon steel C | CrNi S.S. P | CrNiMo S.S. R |
| 01 | Body | A216 WCB | A351 CF8 | A351 CF8M |
| 02 | Gasket | A182 F304+Graphite | A182 F304+Graphite | A182 F304+Graphite |
| 03 | Bolt | A193 B7 | A193 B8 | A193 B8M |
| 04 | Bonnet | A216 WCB | A351 CF8 | A351 CF8M |
| 05 | Nut | A194 2H | A194 8 | A194 8M |
| 06 | Lug | A193 B7 | A193 B8 | A193 B8M |
| 07 | Bolt | A193 B7 | A193 B8 | A193 B8M |
| 08 | Hanger supporter | A216 WCB | A351 CF8 | A351 CF8M |
| 09 | Pin | A276 420 | A276 304 | A276 F316 |
| 10 | Gasket | A194 2H | A194 8 | A194 8M |
| 11 | Nut | A194 2H | A194 8 | A194 8M |
| 12 | Pin | A276 420 | A276 304 | A276 F316 |
| 13 | Hinge | A216 WCB | A351 CF8 | A351 CF8M |
| 14 | Disc | A216 WCB | A351 CF8 | A351 CF8M |
| 15 | Seat | A105 | A182 F304 | A182 F316 |
Ningbo Free Trade Zone ECO International Co., Ltd is a professional supplier of meters in China since year 2000.
We not only supply quality meters and matching accessories, but also join to develop and improve products. We are a team with professional instrument/meter technology knowledge.
Our Professional and TOP products are:
---Water supply system: Water meter with ISO9001 &1SO4064, brass/stainless/UPVC valves, pipes &pipefittings, etc.
---Electric supply system: Electric meter with KEMA, transformer, etc.
---Gas supply system: Gas meter with EN1359 &Atex Report, valves, etc.
---Heat system: Heat meter, radiator, valves. Et
Other products:
---Pumps
---Auto Parts, Car Accessories
---PU Tube, PVC Tube, PO tube
---Caster Wheels
For all of these products, we are cooperating with specific professional ISO 9001 manufacturers. We assure strictly quality controlling, considerate service & competitive prices.
Your enquires are warmly welcome and will receive our immediate attention!
