- Permits flow in one direction and closes automatically if the flow reverses
- Strictly conforming to IS : 4038
- Available in rubber seating
- Available in swing type & lift type design
- Swing type Screwed 15mm to 150mm
- Swing type Flanged 50mm to 300mm
- Lift type Screwed & Flanged 25mm to 100mm
- Valves upto 150mm have single circular door
- Valves above 150mm have two semi circular doors
- Valve designed for almost full flow rate
Test Pressure (Hydraulic) :
- Body : 1.5 MPa
- Seat : 1.0 MPa
- 1 Bar = 0.1 MPa = 1.019 Kg/cm² = 14.50 PSI
- K-518 Single Disc Design
- K-519 Double Disc Design
| S.No. | Components | Material |
|---|---|---|
| 1 | Housing | Grey Cast Iron / Ductile Iron |
| 2 | Hinge Pin | High Tensile Brass IS : 320, HT2 |
| 3 | Disc Guide Pin | High Tensile Brass IS : 320, HT2 |
| 4 | Disc | Grey Cast Iron IS : 210 FG.200 |
| 5 | Disc Face | Natural Rubber with canvas reinforcement IS:5192 |
| 6 | Disc Plate | Grey Cast Iron IS : 210 FG.200 |
| 7 | Seat | Grey Cast Iron IS : 210 FG.200 |
| 8 | Strainer | Grey Cast Iron IS : 210 FG.200 |
