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When the aircraft is connected to a ground refueling source, the fuel management system commands the refuel shutoff valve to close when the selected fuel quantity is reached in conjunction with the refuel control solenoid or pilot-operated float valve.
Refuel shutoff valves such as the one above are mounted to a vertical rib and are designed with several features that are required in today’s demanding aerospace needs (i.e. FAR25.981, windmilling & engine blade out). This style of valve is also designed to keep surge pressure low when the valve is commanded to shutoff, thus protecting any downstream equipment. With its low pressure drop and low leakage rate, this valve is an ideal choice when properly selected for the right application.
The refuel shutoff valve is designed to operate in conjunction with a refuel control solenoid or pilot-operated float valve. When the aircraft is connected to a ground refueling source, refuel pressure and flow are routed to the inlet of the valve, allowing the fuel tanks to be filled. When the selected aircraft fuel quantity is reached, the fuel management system will command the refuel-control solenoid or pilot-operated float valve to close, thus commanding the refuel shutoff valve to the closed position.
The material and finishes used in the construction of the valve and those of similar, previously qualified valves are unaffected by several environmental conditions listed in RTCA DO-160 and MIL-STD-810. This elegantly simple design is extremely reliable and several variations of this valve have been produced by Parker for over 30 years.
APPLICATIONS:
Commercial aircraft, military fighters and transports, business and general aviation.
FEATURES AND ATTRIBUTES:
Fundamental features of the solenoid-operated fuel shutoff valve include the following:
• Able to withstand high vibration levels
• Less than one pound weight
• Designed to satisfy FAR25.981
• All internal moving parts are shielded from the environment
• Low surge pressure when commanded close
Характеристики
| Вес: | Dry: 0.89 lb |
| Рабочая температура: | -67ºF to 185ºC °C |
| Минимальная температура жидкости: | -50 °C |
| Максимальная температура жидкости: | 55 °C |
| Интенсивность внутренних утечек: | 50 cc/min max between 1 and 60 psig inlet |
| Рабочее давление: | 0 to 60 psig |
| Испытательное давление: | 120 psig |
| Давление разрыва: | 180 psig |
| Перепад давления: | 15 inches psid max at 150 GPM, Jet A 70ºF psi |
- Вес
- Dry: 0.89 lb
- Давление разрыва
- 180 psig
- Интенсивность внутренних утечек
- 50 cc/min max between 1 and 60 psig inlet
- Испытательное давление
- 120 psig
- Максимальная температура жидкости
- 55 °C
- Минимальная температура жидкости
- -50 °C
- Перепад давления
- 15 inches psid max at 150 GPM, Jet A 70ºF psi
- Рабочая температура
- -67ºF to 185ºC °C
- Рабочее давление
- 0 to 60 psig
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