Wholesale WCB slow closing check valve inclined disc type Manufacturer, Factory
Product Description
| Valve Type: | Tilting disc check valve | Structure: | butterfly type |
| Standard: | EN/DIN/API | Workmanship: | Investment casting |
| Sealing direction: | Single-directional | Sealing grade: | Zero leakage |
| Temperature: | -20°C<T<120°C | Operation: | Self-starting |
Characteristics
This WCB tilting disc check valve is integrally cast from ASTM A216 carbon steel for high temperature and pressure resistance. Eccentric short-stroke disc with external hydraulic buffer realizes staged slow closing to eliminate water hammer and impact noise. Metal hard seal fits steam and hot oil service. Widely used in power plant, heating, boiler and petrochemical high-pressure high-temperature pipeline systems.
Advantages
Packing
Standard export wooden case packaging
Application Scenarios
This tilting disc one way valve is widely used in power plant circulating cooling water systems, thermal steam heat exchange pipelines, boiler feed water lines, chemical heat transfer oil pump stations, industrial high-temperature hot water circulation and waste heat recovery piping systems.
Material of Main Parts
| Components Name | Valve Body | Disc | Seal Packing Collar | Valve Lever | Packing |
| Material | Cast iron Carbon steel |
Cast iron Cast steel Ductile iron |
Ding nitrile oil resistant rubber, chloroprene rubber | Stainless steel | Teflon |
Main Dimension
| DN (mm) | L | H | B1 | B2 |
| 200 | 230 | 550 | 540 | 600 |
| 250 | 250 | 630 | 600 | 700 |
| 300 | 270 | 690 | 650 | 740 |
| 350 | 290 | 780 | 710 | 800 |
| 400 | 310 | 860 | 770 | 870 |
| 450 | 330 | 910 | 830 | 920 |
| 500 | 350 | 980 | 900 | 1000 |
| 600 | 390 | 1070 | 1090 | 1250 |
| 700 | 430 | 1220 | 1200 | 1360 |
| 800 | 470 | 1320 | 1320 | 1480 |
| 900 | 510 | 1430 | 1420 | 1580 |
| 1000 | 550 | 1550 | 1550 | 1700 |
| 1200 | 630 | 1800 | 1780 | 1950 |
| 1400 | 710 | 1980 | 2000 | 2175 |
Frequently Asked Questions (FAQ)
This valve is manufactured in strict compliance with international manufacturing and design standards, including EN, DIN, and API specifications.
The valve combines an eccentric short-stroke disc design with an external hydraulic buffer to execute a controlled, staged slow-closing action, effectively preventing water hammer surges and impact noise.
It provides a single-directional metal hard seal structure that achieves zero leakage under standard working conditions.
The integrally cast ASTM A216 WCB carbon steel body can withstand temperatures up to 425°C, making it superior to ductile iron for high-temperature steam and hot oil pipelines.
The valve body and disc are available in cast iron, carbon steel, cast steel, or ductile iron. The valve lever is made of stainless steel, packing collar uses oil-resistant rubber/chloroprene, and packing is high-grade Teflon.
All valves are packed using standard export wooden cases to ensure safe transport and protection during long-distance sea and land shipment.
