- By-Pass G.T Road Maqsudan Jalandhar, Punjab
- 98140-34209|76963-00030
- minarengg@ymail.com
- minarenggco76@gmail.com
Swing Check Type Reflux (non-return)Valve-IS 5312
Size : 50mm to 600mm
Scope
Designed to prevent backflow in waterworks systems, this valve ensures one way flow and protects pumps and pipelines from reverse pressure. Commonly installed at pump discharge lines, rising mains, and storage tanks, it operates automatically without manual intervention. Ideal for reliable, low-maintenance backflow prevention in water distribution networks.
Available in Nominal pressure: PN-1.0 , PN-1.6.
Material Table & Components
| Sl No. | Component | Preferred Material | Ref to IS No. | Grade or Designation | Alternate Material | Ref to IS No. | Grade or Designation |
|---|---|---|---|---|---|---|---|
| i) | Body, cover, door, bearing holder | Grey cast iron | 210 | FG 200 | Grey cast iron spheroidal or nodular cast iron cast steel | 210 1865 1030 |
FG 260 500/7 230–450 W |
| ii) | Hinge pin, door pin and door suspension pin | Stainless steel | 6603 | 12Cr12 | High tensile brass, stainless steel | 320 6603 |
HT2 04Cr19Ni9 / 04Cr17Ni12Mo2 |
| iii) | Body seat rings | Leaded tin bronze | 318 | LTB 2 | Stainless steel | 3444 | Gr 1 / Gr 4 / Gr 10 |
| iv) | Door face ring | Leaded tin bronze | 318 | LTB 2 | Natural / synthetic rubber, stainless steel | 3444 | Gr 1 / Gr 4 / Gr 10 |
| v) | Bearing bushes / Bearing block | Leaded tin bronze | 318 | LTB 2 | P.T.F.E. | — | — |
| vi) | Plugs for hinge pin / Air release plug | Leaded tin bronze | 318 | LTB 2 | Stainless steel | 6603 | 12Cr12 / 04Cr19Ni09 / 04Cr17Ni12Mo2 |
| vii) | Bolts | Carbon steel | 1363 (Part 1) | Class 4.6 | — | — | — |
| viii) | Nuts | Carbon steel | 1363 (Part 3) | Class 4.0 | — | — | — |
| ix) | Gaskets | Rubber | 638 | Type B | CAF | 2712 | — |
| x) | Hinges | Grey cast iron | 210 | FG 200 | Malleable cast iron, cast steel | 14329 1030 |
— 230–450 W |
