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Wholesale Full Rubber Coated Check Valve Supplier, Factories
Product Description
Product Features
Simple valve structure, distinct casting marks, and smooth surface finish.
Low operating torque allows effortless opening and ensures extended operational life.
Precision-machined parts throughout, guaranteeing superior build quality and tight tolerances.
Equipped with premium quality rubber seats designed for durability and long-term sealing.
Field-replaceable seat design enables convenient and cost-effective valve maintenance.
Main Component Materials
| No. | Components Name | Material |
|---|---|---|
| 1 | Screws | C.S (Carbon Steel) |
| 2 | Valve body | Ductile cast iron + EPDM |
| 3 | Valve plate | CF8M (Stainless Steel 316) |
| 4 | Spring | SS316 |
| 5 | Valve stem | SS316 |
Product Performance Specification
| Nominal Diameter | DN50 (2”) ~ DN600 (24”) | |
|---|---|---|
| Nominal Pressure | 1.6 MPa | |
| Pressure Test | Shell Test | 2.4 MPa |
| Seal Test | 1.76 MPa | |
| Operation Temperature | -20°C ~ +120°C | |
| SIZE | B | E | F | R | d | A | ||
|---|---|---|---|---|---|---|---|---|
| in | DN | DIN PN10/16 | ANSI 150 | |||||
| 2 | 50 | 43 | 65 | 19 | 28.8 | 43.3 | 107 | 102 |
| 2-1/2 | 65 | 46 | 80 | 20 | 36.1 | 60.2 | 127 | 121 |
| 3 | 80 | 64 | 94 | 28 | 43.4 | 66.4 | 142 | 133 |
| 4 | 100 | 64 | 117 | 27 | 52.8 | 90.8 | 162 | 171 |
| 5 | 125 | 70 | 145 | 30 | 65.7 | 116.9 | 192 | 193 |
| 6 | 150 | 76 | 170 | 30 | 78.6 | 144.6 | 218 | 219 |
| 8 | 200 | 89 | 224 | 31 | 104.4 | 198.2 | 273 | 276 |
| 10 | 250 | 114 | 265 | 33 | 127 | 233.7 | 328 | 336 |
| 12 | 300 | 114 | 310 | 50 | 148.3 | 283.9 | 378/382 | 406 |
| 14 | 350 | 127 | 360 | 43 | 172.4 | 332.9 | 438/442 | 448 |
| 16 | 400 | 140 | 410 | 45 | 197.4 | 381 | 488/495 | 511 |
| 18 | 450 | 152 | 450 | 52 | 217.8 | 419.9 | 538/555 | 546 |
| 20 | 500 | 152 | 505 | 58 | 241 | 467.8 | 592/617 | 603 |
| 24 | 600 | 178 | 624 | 73 | 295.4 | 572.6 | 695/734 | 714 |
| 28 | 700 | 229 | 720 | 98 | 354 | 680 | 809 | 828 |
| 32 | 800 | 241 | 825 | 100 | 398 | 770.5 | 916 | 936 |
Product Demonstration
Packaging & Delivery
Frequently Asked Questions
What are the body and disc materials used in this valve?
The valve body is constructed from durable Ductile Cast Iron with an EPDM lining, while the valve plate (disc) is made of premium corrosion-resistant CF8M stainless steel. The internal stem and spring are manufactured from high-grade SS316.
What is the maximum pressure rating and testing standards?
The valve is rated for a nominal pressure of 1.6 MPa (PN16). Each unit undergoes rigid testing, including a shell test at 2.4 MPa and a seal test at 1.76 MPa to guarantee zero-leakage performance under normal operations.
What is the suitable working temperature range?
Thanks to the optimized EPDM elastomer seat and resilient stainless steel internal components, the valve performs reliably within a temperature range of -20°C to +120°C.
Can the valve seat be replaced when worn?
Yes, the valve is engineered with a fully replaceable rubber seat. This design feature simplifies ongoing field maintenance, minimizes downtime, and significantly extends the service life of the valve body.
Which flange connection standards are supported?
Our valve dimensions accommodate dual international standards, fitting both DIN PN10/PN16 and ANSI Class 150 flange bolt patterns across nominal diameters from DN50 (2") up to DN800 (32").
