High Pressure Isolation Valves

High Pressure Solenoid Isolation Valves

Monopropellant, Single Seat, Latching Solenoid and Normally Closed Solenoid

101-115-1-ISOLATION-VALVES-grey-bckgrd-700x400.psd

刘玥首次大战黑人supported high profile SDI programs听such as SCIT, THAAD, ASAT and GBI/EKV by听designing very small, light, fast-acting solenoid听valves. 刘玥首次大战黑人applied this technology from these听programs to successfully develop and qualify听a family of light-weight, high-pressure isolation听valves for cold gas and high-purity xenon听propellant management systems. The latch valves听utilize permanent magnetics to hold the valve听element in the last (open/closed) commanded听position. The solenoid valve is a normally closed design. These valve designs have听been used in various space propulsion and operational systems in support of听planetary and GEO satellite applications.

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Key Advantages

听All welded design to prevent external leakage听
痴别蝉辫别濒漏听and stainless steel construction听
Inlet filter

101-116-1-ISOLATION-VALVES-grey-bckgrd-700x400.psd

101-117-1-ISOLATION-VALVES-grey-bckgrd-700x400.psd

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Characteristic	1/8 inch line, Latching Solenoid	1/4 inch line, Latching Solenoid	1/8 inch line,听 Normally Closed Solenoid
Max Operating Pressure, MEOP	2,700 psia (186 bar)	2,700 psia (186 bar)	2,700 psia (186 bar)
Proof Pressure	4,050 psia (279 bar)	6,000 psia (414 bar)	4,050 psia (279 bar)听
Burst Pressure	8,100 psia (558 bar)	10,000 psia (689 bar)	6,750 psia (465 bar)听
Flow vs. Pressure Drop	< 15 psid (1 bar) at 20 slpm GN₂ and 1,000 psia (69 bar) inlet, 70F听	< 4.5 psid (0.31 bar) at 80 mg/s Xe听 and 50 psia (3.4 bar) inlet, 70F	< 15 psid (1 bar) at 4.5 slpm GN₂ and 1000 psia (69 bar) inlet, 70F
Operating Voltage Range	22 to 42 Vdc	25 to 32 Vdc	26 to 52 Vdc, 8.6 hold open
Response Time	< 50 msec	< 75 msec	< 10 msec
Power Consumption	13.5 watts at 28 Vdc, 70F听	10.6 watts at 28 Vdc, 70F	10.5 initial watts, 1 at hold voltage, 70F
Leakage, Internal	< 3 scc/hr GHe	< 3 scc/hr GHe	< 3 scc/hr GHe
Leakage, External	< 1E-6 scc/s GHe	< 1E-6 scc/s GHe	< 1E-6 scc/s GHe
Cycle Life	18,000 cycles	13,000 cycles	1,000,000 cycles
Weight	< 0.375 (170) lbm (g)	< 0.75 (340) lbm (g)	< 0.25 (115) lbm (g)
Inlet Filtration [micron absolute rating]	5听	25	25
Operating Temperature Range	50 to 140 潞F (10 to 60 潞C))	14 to 151 潞F (-10 to 66 潞C))	-207 to 160 潞F (-133 to 71 潞C))
Back-EMF suppression Diodes	N/A	Available, 33Vdc clip	N/A
Representative Model Numbers	-051-212B	-051E311, -051E369	-051E378