Valves
Wafer Valves
Your multi-application DARCO Wafer ball valves
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DARCO Wafer floating or trunnion ball valves are manually operated or actuated, from 1/8” to 16” for 150 to 2500 pressure class.
Technical requirements
Designed as per API 6D / B16.34, to cover a wide range of fluids, temperature, pressure and environments, our DARCO ball valves are fire-safe qualified (according to API 607/ISO 10497), manual or actuated, and maintainable.
Dimensions
| Ball valve Type | Flow rate | NPS full bore | NPS reduced bore |
|---|---|---|---|
| D1 | class 150 to 800 Lbs | 1/8” to 1”1/2 | 1/2” to 2” |
| D2 | class 900 to 1500 | 1/8” to 1”1/2 | 1/2” to 2” |
| D3 | above Class 2500 | 1/8” to 1”1/2 | 1/2” to 2” |
| D4 | up to Class 300 | 2″ to 4″ | 3″ to 6″ |
| D5 | up to class 2500 | 2″ to 10″ | 3″ to 12″ |
| D6 | up to class 2500 | 10″ to 14” | 12″ to 16” |
Design
Designed with a full or reduced bore, bolted connections, DARCO ball valves can be manufactured with a large panel of materials (Carbon or stainless steel, Duplex, super Duplex…).
This design allows short face to face dimensions.
Options
- The option of overlay on sealing pockets can also be proposed.
- The ball-seats contact could either be with polymers or with metal-metal. Our trunnion valves used both with Single Piston Effect (SPE) or Double Piston effect (DPE) design.
- Vent and drain plugs can be added
- Stem extension can be proposed
- Optionally, some injection points on seats and stems can be added.
- Operated by lever, wheel, gearbox, actuator or dead man.
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