Anti-Ice Pressure Regulating Shut-Off Valve | 日本
日本

Anti-Ice Pressure Regulating Shut-Off Valve

Parker Aerospace anti-ice pressure regulating shut-off valve controls the application of HP3 air to the downstream anti-ice pressure relief valve to maintain the engine intake (nacelle) free from ice under fault-free operation.

FSDAIPRSOV
 部品
Description
    The anti-ice pressure regulating shut-off valve is pneumatically operated. The valve is normally spring-loaded open. Pressurized servo air is fed to the valve from the solenoid bank in order to command the valve to shut-off or regulating mode. The anti-ice pressure regulating shut-off valve is mounted on the combustion outer casing within zone three of the engine.

    The pressure regulating shut-off valve has three modes of operation – OPEN, REGULATING, and CLOSED. When the regulating servo port and the shut-off servo port of the anti-ice pressure regulating shut-off valve are vented or pressurized by de-energizing or energizing the corresponding solenoid of the remote solenoid bank, each of the three modes of operation are realized. With an inlet pressure of more than 75 psig, and with the pressure regulating shut-off valve in REGULATING condition, the outlet pressure from the pressure regulating shut-off valve will be 75 psig, nominal.

    In the event of the anti-ice pressure relief valve failing to regulate the air supplied to the nacelle, the anti-ice pressure regulating shut-off valve will provide regulation functionality when commanded via a control input from a dedicated solenoid, located on the solenoid bank in zone two.

    The anti-ice pressure regulating shut-off valve is mainly made out of Inconel 718 and 17-4PH. Carbon seal assemblies and bushings are used to provide robust operation at high-temperature conditions.

    APPLICATIONS: Commercial aircraft engines

    FEATURES AND ATTRIBUTES:
    • Robust against high pressure and high temperature
    • Designed to withstand high-vibration levels
    • Chromed-bore surfaces coupled with carbon bushings and seals for wear resistance

    At Parker, our pneumatic subsystem expertise complements our fuel subsystem and fluid conveyance abilities in the engine environment. Available for virtually any specification or application, our cost-effective subsystems and components are well proven and reliable.

    Designed for extreme engine environments, our engine controls offer a wide range of seamlessly integrated and optimized selections using advanced designs, materials, and actuation technologies.
Description

機能特性

最小作動圧力 (psig)

17 psia at 395ºF

最大動作圧力 (psig)

350 psia at 1016ºF

安全圧力

Servo and Inlet: 655 psia at room temperature

破裂圧力

Servo and Inlet: 1404 psia at room temperature

応答時間

Opening, regulating, and closing: 6 seconds each

作動温度 (F)

540ºF surrounding air temperature, peak

最低周囲温度 (F)

395ºF duct air minimum operating

最高周囲温度 (F)

1070ºF maximum possible working duct air

最高作動温度 (F)

1016ºF duct air temperature, maximum normal working

外部リーク量

1.3 lb./min.

内部リーク量

2.23 lb./min.

乾燥重量 (lbs)

12.2 lb. max

安全係数

Spring-loaded open fail safe position

  • Literature and Reference Materials

  • Fluid Systems Division Capabilities Brochure
  • お問合せ

    パーカー・ハネフィン日本株式会社
    東京都港区白金台3-2-10
    白金台ビル2F
    〒108-0071
    電話 03-6408-3901(営業本部)
    FAX  03-5449-7202