Special Valves for Aircraft

Check Valves

 

  • ► Check Valve Type


    - Pressure Relief

    - Boost Pump Outlet

    - Suction Feed

    - Ejector Motive

Specification

Pressure Relief
Size 145.6 ±0.5 x ∅76.2 ±0.2 x 63.5 ±0.2 mm
Weight <0.68 kg
Eletrical Bonding <5.0 mΩ
Proof Pressure 30 psi
Pressure Drop 2.4 psid @ 189.2 LPM
Internal Leakage 500 cc @ 1 min, 1 psig (Opposite Flow)
External Leakage No Leakage
Cracking Pressure 0.8 ~ 1.0 paig (562.0 ~ 703.0 mmH₂O)
Boost Pump Outlet
Size 85.9 ±0.5 x 28.6 ±0.2 x 38.0 ±0.2 mm
Weight <0.1 kg
Eletrical Bonding <5.0 mΩ
Proof Pressure 120 psi
Pressure Drop 0.53 psid @ 9.45 LPM
Internal Leakage 2 cc @ 1 min, 29 psig (Opposite Flow)
External Leakage No Leakage
Cracking Pressure <2 inchH₂O (50.8 mmH₂O)
Suction Feed
Size  90.8 ±0.5 x ∅74.0 ±0.2 mm
Weight <0.399 kg
Eletrical Bonding <5.0 mΩ
Proof Pressure 120 psi
Pressure Drop 0.6 psid @ 18.9 LPM
Internal Leakage 10 cc @ 1 min, 30 psig (Opposite Flow)
Check Valve Cracking Pressure <2 inchH₂O (50.8 mmH₂O)
Relief Valve Cracking Pressure 40 ~ 45 psig
Relief Valve Reseat Pressure >8 psig
Ejector Motive
Size 43.9 ±0.5 x 25.4 ±0.2 x 25.4 ±0.2 mm
Weight <0.054 kg
Eletrical Bonding <2.5 mΩ
Proof Pressure 120 psi
Pressure Drop 0.68 psid @ 2.55 LPM
Internal Leakage 2 cc @ 1 min, 30 psig (Opposite Flow)
External Leakage No Leakage
Check Valve Cracking Pressure <16 inchH₂O (406.4 mmH₂O)