Check valves
Flanged swing check valve (GA model)
GA model swing check valve with flanged ends. Body, disc and bonnet in A536 65-45-12 ductile iron, brass bushing and graphite gasket. Closes by gravity when the flow stops and protects pumps and networks against backflow, from DN 50 to DN 350.
- 10references
- 50 – 350 mmsize range
The flanged swing check valve is the classic, robust solution to prevent backflow in rising mains and distribution networks. Its disc, hinged at the top of the body, opens with the flow itself and returns to its seat by gravity and back-pressure as soon as the flow stops, fully automatically and without external power.
Body, disc and bonnet are made of A536 grade 65-45-12 ductile iron, with a brass bushing, carbon steel bolting and an encapsulated graphite gasket. The bolted bonnet gives access to the interior for inspection or disc replacement without removing the valve from the pipe, and the limit block restricts the disc travel for smooth, long-lasting operation.
Supplied with flanges to UNE-EN 1092-2 (PN 10/16) for direct mounting on ductile iron, steel or PVC pipe with stub flanges. It complements the Grupo Almagromur ball and dual-plate check valves in pumping, water supply and irrigation.
- Type
- swing check valve, GA model, with flanged ends.
- Body
- A536 grade 65-45-12 ductile iron.
- Disc
- A536 grade 65-45-12 ductile iron.
- Bonnet
- A536 grade 65-45-12 ductile iron, removable for inspection.
- Bushing
- brass B16 C36000.
- Bolts and washers
- carbon steel.
- Gasket
- encapsulated graphite.
- Limit block (travel stop)
- A536 grade 65-45-12 ductile iron.
- Coating
- blue epoxy paint.
- Connections
- flanges to UNE-EN 1092-2 (PN 10/16).
- DN 100D Ø220 · D1 Ø156 · D2 Ø99 · H 212 · L 114 · 8 holes Ø19.5
- DN 125D Ø254 · D1 Ø182 · D2 Ø125 · H 275 · L 133 · 8 holes Ø19
- DN 150D Ø285 · D1 Ø211 · D2 Ø150 · H 320 · L 161 · 8 holes Ø23
- DN 200D Ø345 · D1 Ø264 · D2 Ø200 · H 388 · L 209 · 8 holes Ø23
- DN 250D Ø410 · D1 Ø319 · D2 Ø250 · H 480 · L 251.5 · 12 holes Ø23
- DN 300D Ø460 · D1 Ø366 · D2 Ø300 · H 570 · L 308.5 · 12 holes Ø23.5
- Other sizes (DN 50, 65, 80 and 350)on request.
Full dimensions and weights in the Technical data sheet (PDF).
- Pumping rising mains in irrigation and water supply: prevents the pump from spinning backwards when stopped.
- Water distribution networksstops the pipeline draining and water returning to the tank.
- Pumping stations and plant rooms, in horizontal or vertical position with upward flow.
- Irrigation systems with reservoirs or elevated intakes, protecting filters and equipment.
- Industry and civil worksany flanged pipeline where a single flow direction must be guaranteed.
References
Flanged swing check valve
Data sheet with dimensions from DN 100 to DN 300; other sizes on request.
DN
| Reference | Product | Size | Actions |
|---|---|---|---|
| VR890025 | Flanged swing check valve DN 50 | DN 50 | |
| VR890125 | Flanged swing check valve DN 65 | DN 65 | |
| VR890026 | Flanged swing check valve DN 80 | DN 80 | |
| VR890027 | Flanged swing check valve DN 100 | DN 100 | |
| VR890028 | Flanged swing check valve DN 125 | DN 125 | |
| VR890029 | Flanged swing check valve DN 150 | DN 150 | |
| VR890030 | Flanged swing check valve DN 200 | DN 200 | |
| VR890031 | Flanged swing check valve DN 250 | DN 250 | |
| VR890032 | Flanged swing check valve DN 300 | DN 300 | |
| VR890033 | Flanged swing check valve DN 350 | DN 350 |
No references match the filters.
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