Vacuum Pneumatic KF Right Angle Valve (SUS304, Single Acting, Bellows Seal)

Model: PVVP-06(S)

PVVP-06(S) is a vacuum right-angle valve combining a bellows-seal construction with a pneumatic single-acting actuator. It supports a wide size range from NW16 up to NW160 and undergoes 100% helium leak testing prior to shipment, and is used for automated chamber-isolation and pump-shutoff lines in semiconductor, display, solar, and laboratory processes.

Features

Vacuum Pneumatic KF Right Angle Valve (SUS304, Single Acting, Bellows Seal) PVVP-06(S)

Specifications

End ConnectionKF
MaterialSS304
Ball/Disc MaterialSS304
Seat MaterialPTFE
Actuation TypePneumatic(Single Acting)
OriginSouth Korea
SizeNW16, NW25, NW40, NW50, NW63, NW80, NW100
SpecificationsAir pressure required 4~6 bar, differential pressure < 1.2 bar, max. temperature < 60℃, He leak < 5.0 x 10^-9 std. cc/sec, actuator AL6061 anodized

Frequently Asked Questions

How is the fail-safe direction set for single-acting?
Single-acting can be configured to automatically return to Fail Close or Fail Open state via spring force when pneumatic pressure is lost. Lines requiring automatic shutoff for chamber contamination prevention use Fail Close; lines requiring maintained equipment cooling and exhaust use Fail Open. Provide your process safety requirements and we will prepare the spring direction to that specification.
What advantages does the bellows seal provide in vacuum lines?
Standard O-ring seals have the stem in direct contact with the atmosphere, so micro-leakage may increase due to repeated operation and hardening. Bellows seals wrap the entire stem with a metal bellows, minimizing contact with the atmosphere, structurally reducing the impact of seal aging in repetitive use environments and securing margin in inspection cycle planning for corrosive gas environments.
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 DCS/PLC feedback of open/close status, solenoid valves for remote sequence control, and air filter regulators for particulate/moisture removal and pressure stabilization. Let us know your field configuration and we will prepare the appropriate combination.
What level of vacuum can it be used to?
PVVP-06(S) is designed for automatic isolation and shutoff in the high vacuum (HV) range. The actual achievable vacuum varies greatly with chamber volume, pumping system, operating temperature, and process gas type, and separate specification review is required for environments requiring UHV ranges. Let us know your operating environment and we will guide you on suitability and options.

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