The Poline PN16 Dual Plate Check Valve with SS304 Disc – Wafer Type is designed for automatic backflow prevention in water, HVAC, fire fighting, utility, and industrial pipeline systems. Manufactured as per API 594, this compact wafer type valve saves installation space while delivering dependable check valve performance.
The valve uses spring assisted dual plates for rapid closing action, helping reduce reverse flow and minimizing water hammer effects. Its cylindrical body distributes stresses uniformly, while the streamlined internal flow path offers low pressure drop and better operating efficiency.
The SS304 stainless steel disc provides excellent corrosion resistance, longer service life, and suitability for water and moderately corrosive service conditions.
| Parameter | Details |
|---|---|
| Product Type | Dual Plate Check Valve |
| Body Type | Wafer Type |
| Pressure Rating | PN16 |
| Design Standard | API 594 |
| Testing Standard | API 598 |
| Disc Material | SS304 Stainless Steel |
| End Compatibility | ANSI Class 125 / ASME Class 150 |
| Shell Test Pressure | 24.50 kg/cm²g (300 psig) |
| Seat Test Pressure | 16 kg/cm²g |
| Maximum Working Temperature | Up to 80°C |
The Poline Dual Plate Check Valve is widely used in:
Poline Valves manufactures dependable backflow prevention valves engineered for compact installation, efficient flow, and long service life. Our SS304 disc models offer enhanced corrosion resistance for demanding environments.
A dual plate check valve uses two spring-loaded plates that open during forward flow and close automatically when flow reverses.
SS304 stainless steel offers better corrosion resistance than standard ferrous materials.
Wafer type valves are compact, lightweight, and easy to install between flanges.
PN16 indicates a nominal pressure rating of 16 bar.
The spring-assisted fast closing mechanism reduces reverse flow shock.
For pricing, OEM supply, dealership enquiries, or bulk orders for PN16 Dual Plate Check Valve with SS304 Disc – Wafer Type, contact Poline Valves today.
| MATERIAL LIST | ||||
|---|---|---|---|---|
| Part No | Part Name | Material | Specification | Qty |
| 1 | Body | Cast Iron | IS 210 Gr. FG 200 | 1 |
| 2 | Body Lining | Nitrile Rubber | IS 5192-1 | 1 |
| 3 | Flap / Disc | S.S. 304 | ASTMA 351 CF/8 | 2 |
| 4 | Hinge Pin | Stainless Steel | IS 6603 | 1 |
| 5 | Stop Pin | Stainless Steel | IS 6603 | 1 |
| 6 | Spring | Stainless Steel | IS 6603 | - |
| 7 | Washer | Stainless Steel | IS 6603 | - |
| 8 | Packing Washer | Nitrile Rubber /PTFE | IS 5192-1/--- | - |
| 9 | Retainer Plug | Carbon Steel | - | 2/4 |
| 10 | Hook | Carbon Steel | IS 1367 | - |
| SUITABLE FOR | ||||
|---|---|---|---|---|
| GASES | AIR | STEAM | OIL | WATER |
| SIZE DESCRIPTION |
|---|
| Size (mm) | A ±1.5 | ØB | ØC |
| 40 | 50 | 92 | 56 |
| 50 | 54 | 101 | 60 |
| 65 | 60 | 120 | 73 |
| 80 | 67 | 133 | 89 |
| 100 | 67 | 171 | 114 |
| 125 | 83 | 193 | 141 |
| 150 | 95 | 218 | 168 |
| 200 | 127 | 276 | 219 |
| 250 | 140 | 336 | 273.5 |
| 300 | 181 | 406 | 324 |
| 350 | 184 | 451 | 357 |