Wholesale API Standard Stainless Steel Swing Check Valve Manufacturers, Factory
Product Description
Technical Specifications
Characteristics
Adopting an integrated casting process, the flow channel is designed as a straight through or angular type, and the inner wall is precision polished to be smooth without dead corners, reducing the flow resistance of the medium; Both flange connection and clamp connection interfaces can be customized to meet different pipeline installation requirements.
Key Advantages
1. Smooth opening and closing, good resistance to water hammer
The rotary motion trajectory of the valve disc is smooth, with no impact when opened. When closed, it slowly resets with the help of the reverse pressure of the medium. Paired with a balance hammer or damping device, it can further slow down the closing speed, effectively weaken the water hammer effect, and protect the pipeline and upstream and downstream equipment.
2. Strong circulation capacity and minimal pressure loss
The straight through flow channel design reduces turbulent losses in medium flow. When the valve disc is fully opened, it is parallel to the axis of the flow channel and produces almost no additional resistance. It is particularly suitable for conveying large-diameter and high velocity media, reducing the operating energy consumption of power equipment such as pump sets.
3. Reliable sealing, suitable for multiple media working conditions
The metal hard seal and soft seal can be flexibly switched, and the metal seal can withstand high temperature, high pressure, and particle media erosion; Soft sealing can achieve zero leakage sealing under low pressure conditions, suitable for various media such as water, steam, oil, chemical raw materials, etc.
Application Scenarios
This valve sees extensive utilization in pipeline networks spanning diverse industries, ranging from chemical manufacturing, petroleum refining and marine engineering to pharmaceuticals, food and beverage production, power generation and water treatment. It demonstrates exceptional suitability for applications involving the conveyance of corrosive substances, high-temperature and high-pressure media, as well as high-purity fluid typical use cases include chemical raw material transfer pipelines, boiler steam pipelines, seawater desalination systems and pharmaceutical process piping.
Material Specifications
| Product Type | Part Name | |||
|---|---|---|---|---|
| Valve Body, Valve Bonnet | Valve Disc, Valve Seat | Gasket | Fastener | |
| H44HY | WCB/25 | H:25+ Chromium stainless steel Y:25+Carbide |
Stainless steel with flexible graphite The steel strip Asbestos-wound gasket Spiral wound gasket |
High quality carbon steel |
| H44Y | Chromium-molybdenum steel | Chrome molybdenum steel + Carbide | Alloy steel | |
| H44W | Chrome-nickel titanium, chromium-nickel-molybdenum and titanium stainless steel | Stainless steel | ||
| H44W | ||||
Dimensions
| PN (MPa) | DN (mm) | L | H | D | D1 | D2 | D6 | b | f | f2 | Z-ϕ d |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.6 | 50 | 230 | 135 | 160 | 125 | 100 | – | 16 | 3 | – | 4-Φ18 |
| 65 | 290 | 142 | 180 | 145 | 120 | – | 18 | 3 | – | 4-Φ18 | |
| 80 | 310 | 165 | 195 | 160 | 135 | – | 20 | 3 | – | 8-Φ18 | |
| 100 | 350 | 180 | 215 | 180 | 155 | – | 20 | 3 | – | 8-Φ18 | |
| 125 | 400 | 210 | 245 | 210 | 185 | – | 22 | 3 | – | 8-Φ18 | |
| 150 | 480 | 233 | 280 | 240 | 210 | – | 24 | 3 | – | 8-Φ23 | |
| 200 | 550 | 304 | 335 | 295 | 265 | – | 26 | 3 | – | 12-Φ23 | |
| 250 | 650 | 348 | 405 | 355 | 320 | – | 30 | 3 | – | 12-Φ25 | |
| 300 | 750 | 390 | 460 | 410 | 375 | – | 30 | 4 | – | 12-Φ25 | |
| 350 | 850 | 430 | 520 | 470 | 435 | – | 34 | 4 | – | 16-Φ25 | |
| 400 | 950 | 468 | 580 | 525 | 485 | – | 36 | 4 | – | 16-Φ30 | |
| 450 | 1050 | 490 | 640 | 585 | 545 | – | 40 | 4 | – | 20-Φ30 | |
| 500 | 1150 | 525 | 705 | 650 | 608 | – | 44 | 4 | – | 20-Φ34 | |
| 600 | 1350 | 610 | 840 | 770 | 718 | – | 48 | 4 | – | 20-Φ41 | |
| 700 | 1450 | 670 | 910 | 840 | 788 | – | 50 | 4 | – | 24-Φ41 | |
| 800 | 1650 | 730 | 1020 | 950 | 898 | – | 52 | 4 | – | 24-Φ41 | |
| 900 | 1950 | 795 | 1120 | 1050 | 998 | – | 54 | 4 | – | 28-Φ41 | |
| 2.5 | 50 | 230 | 160 | 160 | 125 | 100 | – | 20 | 3 | – | 4-Φ18 |
| 65 | 290 | 175 | 180 | 145 | 120 | – | 22 | 3 | – | 8-Φ18 | |
| 80 | 310 | 185 | 195 | 160 | 135 | – | 22 | 3 | – | 8-Φ18 | |
| 100 | 350 | 220 | 230 | 190 | 160 | – | 24 | 3 | – | 8-Φ23 | |
| 125 | 400 | 248 | 270 | 220 | 188 | – | 28 | 3 | – | 8-Φ25 | |
| 150 | 480 | 270 | 300 | 250 | 218 | – | 30 | 3 | – | 8-Φ25 | |
| 200 | 550 | 350 | 360 | 310 | 278 | – | 34 | 3 | – | 12-Φ25 | |
| 250 | 650 | 410 | 425 | 370 | 332 | – | 36 | 3 | – | 12-Φ30 | |
| 300 | 750 | 430 | 485 | 430 | 390 | – | 40 | 4 | – | 16-Φ30 | |
| 350 | 850 | 518 | 550 | 490 | 448 | – | 44 | 4 | – | 16-Φ34 | |
| 400 | 950 | 560 | 610 | 550 | 505 | – | 48 | 4 | – | 16-Φ34 | |
| 450 | 1050 | 590 | 660 | 600 | 555 | – | 50 | 4 | – | 20-Φ34 | |
| 500 | 1150 | 618 | 730 | 660 | 610 | – | 52 | 4 | – | 20-Φ41 | |
| 600 | 1350 | 640 | 840 | 770 | 718 | – | 56 | 4 | – | 20-Φ41 | |
| 700 | 1450 | 695 | 955 | 875 | 815 | – | 60 | 4 | – | 24-Φ48 | |
| 800 | 1650 | 760 | 1070 | 990 | 930 | – | 64 | 4 | – | 24-Φ48 | |
| 900 | 1956 | 833 | 1180 | 1090 | 1025 | – | 66 | 4 | – | 28-Φ54 |
Packaging Details
Standard export wooden case packaging.
Frequently Asked Questions (FAQ)
Q1: What standard is this swing check valve manufactured to?
This valve is built in compliance with the API609 standard using precision investment casting technology to ensure long-lasting structural integrity and leakage-free operation.
Q2: What temperature range can this valve handle?
The valve operates efficiently across an extreme working temperature range from -40°C to 800°C (-40°C < T < 800°C), making it suitable for both cryogenic and high-temperature industrial pipelines.
Q3: How does the swing check valve prevent water hammer?
The valve disc features a smooth rotary motion trajectory that opens without impact and closes slowly via reverse medium pressure. It can also be paired with a balance hammer or damping device to further reduce closing speed and minimize water hammer damage.
Q4: What media and applications are recommended for this valve?
It is ideal for transporting water, steam, oil, and chemical raw materials. Common applications include boiler steam lines, chemical raw material transport, seawater desalination, and power generation fluid systems.
Q5: What sealing materials and grades are available?
The valve utilizes a single-directional sealing structure capable of achieving zero leakage. Options include metal hard seals for high-temperature/particle conditions and soft seals for low-pressure zero-leakage performance.
Q6: How are the valves packaged for export?
All products are packed in standard export wooden cases to ensure adequate protection against impact and environmental elements during international freight transport.
