4WAY Pneumatic Ball Valve BSPT (SUS316, Single Acting)
Model: PAVP-08(S)
PAVP-08(S) is a 4WAY ball valve combining a SUS316 body with a pneumatic single-acting actuator. It supports four port configurations (L/T/X/I) and per-port rotation-angle options (L5/T5/X/I), with an ISO5211 direct mounting pad applied as standard. It is used for multi-direction automatic switching fail-safe lines in the chemical, plant, water/wastewater, and construction sectors.
Features
- Compact design for easy installation in confined spaces
- Leak tested per API598
- First in Korea to apply ISO5211 Direct Mounting Pad
Frequently Asked Questions
- What 4-way port configurations are offered?
- PAVP-08(S) supports four port configurations: L, T, X, and I. The L port performs 90-degree directional switching by selecting one of two paths; the T port is for manifolds requiring simultaneous branching and merging; the X port is a cross-flow type that switches two paths simultaneously; the I port is used for straight-through configurations. Rotation angle options of 90°/180° are provided depending on the port configuration, so select the appropriate specification according to your process sequence.
- How do I choose between single-acting and double-acting?
- Single-acting automatically returns via spring force when pneumatic pressure is lost, making it suitable for safety shutoff lines requiring Fail Close or Fail Open. Double-acting drives both directions pneumatically, providing larger torque margin and faster response, but position retention is uncertain when air is lost. Choose single-acting if fail-safe is required, double-acting for general control applications.
- What accessories can be attached to a pneumatic valve?
- We supply integrated packages combining various accessories to meet field requirements. Typical accessories include limit switch boxes for feeding open/close status back to DCS/PLC, solenoid valves for remote sequence control, and air filter regulators that remove particulates and moisture from the supply air and stabilize pressure. Let us know your field configuration and we will prepare the appropriate combination.
- How is Fail Close vs. Fail Open determined?
- The fail-safe direction is determined by process hazard analysis (HAZOP). Flammable or hazardous material supply lines should automatically shut off when pneumatic pressure is lost, so Fail Close is selected; lines such as cooling water or rinse water that must maintain supply even during loss should use Fail Open. Provide your process safety requirements and we will prepare the spring direction to that specification.