STD11 Ultra-Low Temperature Liquid Nitrogen Solenoid Valve
We Mainly do Pneumatic Cylinder, solenoid valve, pneumatic valve, air treatment units, quick connection fittings and PU tube . Our 4V. 3V.2V.2p .solenoid valve ,and 4A.3A Pneumatic valve sell so hot in Asia, Europe,and Middle East. We are popular in pneumatic and Hydraulic market. Our accessories taked from the same supplier as Airtac.
STD11 Ultra-Low Temperature Liquid Nitrogen Solenoid Valve
Basic Info:
We Mainly do Pneumatic Cylinder, solenoid valve, pneumatic valve, air treatment units, quick connection fittings and PU tube .
Our 4V. 3V.2V.2p .solenoid valve ,and 4A.3A Pneumatic valve sell so hot in Asia, Europe,and Middle East.
We are popular in pneumatic and Hydraulic market. Our accessories taked from the same supplier as Airtac.
Product Overview
STD11 Ultra-Low Temperature Liquid Nitrogen Solenoid Valve is customized for liquid nitrogen and other ultra-low temperature cryogen control. With dedicated anti-freezing and low-temperature resistant design, it can operate reliably under extremely low temperature working conditions. It is extensively applied in cryogenic storage equipment, liquid nitrogen filling equipment, refrigeration industry and chemical cryogenic pipelines for automatic medium on-off control.
General Specifications
| Parameter | Specification | Remarks |
|---|---|---|
| Model | STD11 Series | For LN2/LOX/LNG |
| Principle | Direct-acting / Pilot piston | Direct for small bores, pilot for large |
| Valve Function | 2/2-way | NC standard; NO optional |
| Body Material | SS 304 / 316 | Cryogenic & corrosion resistant |
| Seal Material | PTFE / Cryogenic grade | Suitable for -196°C |
| Media | LN2, LOX, LNG, Cryogenic fluids | Must be clean & dry |
| Media Temperature | -196°C ~ +80°C | For extreme cold |
| Ambient Temperature | -40°C ~ +60°C | |
| Working Pressure | 0 ~ 4.0 MPa (size dependent) | Zero differential for direct-acting |
| Port Size | DN1 ~ DN100 | Small for precision; large for mains |
| Connection | Threaded (G/NPT) / Flanged | Extended bonnet standard |
| Voltage | AC220V / DC24V | DC24V for low voltage safety |
| Protection Rating | IP65 (DIN) | Dustproof & waterproof |
| Insulation Class | Class H | High-temp coil for thermal break |
| Special Feature | Extended Bonnet | Prevents coil freeze-up |
| Installation | Coil vertically upward | Required for proper function |
Dimensions & Specifications by Size
| Connection (G/NPT) | DN | Valve Dimensions (L×W×H mm) | Cv Value | Max Pressure |
|---|---|---|---|---|
| 1/2" | 15 | 68 × 48 × 125 | 4.5 | 0.03~7.5MPa |
| 3/4" | 15 | 68 × 48 × 125 | 4.5 | 0.03~7.5MPa |
| 1" | 25 | 96 × 70 × 145 | 12 | 0.03~7.5MPa |
| 1¼" | 32 | 150 × 135 × 170 | 25 | 0.03~7.5MPa |
| 1½" | 40 | 160 × 145 × 180 | 31 | 0.03~7.5MPa |
| 2" | 50 | 185 × 155 × 210 | 50 | 0.03~7.5MPa |
Temperature Ratings by Seal Material
| Sealing Material | Temperature Range | Suitable Media |
|---|---|---|
| NBR | -20℃ ~ +80℃ | Air, water, natural gas |
| EPDM | -40℃ ~ +120℃ | Hot water |
| VITON / PTFE | -50℃ ~ +260℃ | Oil, hot water, low-pressure steam |
Specification Selection Table (G1/8" Connection)
| Orifice (mm) | Kv Value (m³/h) | Max Pressure - AC (bar) | Max Pressure - DC (bar) | Brass Model |
|---|---|---|---|---|
| 1.5 | 0.07 | 13 | 11 | STGV1-A3-11X |
| 2.0 | 0.14 | 11 | 9 | STGV1-02-11X |
| 2.5 | 0.21 | 9 | 7 | STGV1-A4-11X |
| 3.0 | 0.25 | 6 | 4 | STGV1-03-11X |
| 4.0 | 0.35 | 3.5 | 2 | STGV1-04-11X |
(X = Seal code: N=NBR, E=EPDM, V=FKM, F=Special material)
Sealing Materials & Temperature Range
| Seal Code | Sealing Material | Fluid Temperature | Suitable Media |
|---|---|---|---|
| X=N | NBR | -20℃ ~ 80℃ | Air, water, natural gas |
| X=E | EPDM | -20℃ ~ 135℃ | Hot water |
| X=V | VITON | -10℃ ~ 155℃ | Hot oil, hot water |
Model & Specification Table (G/NPT Thread Connections)
| Port Size | Orifice (mm) | Flow (Cv) | Pressure Rating |
|---|---|---|---|
| 1/2" | 15 | 4.5 | 0.3~16 Bar |
| 3/4" | 20 | 7.6 | 0.3~16 Bar |
| 1" | 25 | 12 | 0.3~16 Bar |
| 1½" | 40 | 19.2 | 0.3~16 Bar |
| 2" | 50 | 24 | 0.3~16 Bar |
Electrical Specifications
| Voltage | Coil Power | Operating Current | Coil Model | Connection Type |
|---|---|---|---|---|
| AC220V | 9VA | 0.04A | BA11 | Junction box |
| DC24V | 8W | 0.35A | BA11 | Junction box |
| AC110V | 9VA | 0.82A | BA11 | Junction box |
| DC12V | 8W | 1.68A | BA11 | Junction box |
| AC24V | 9VA | 0.375A | BA12 | 300mm lead wires |
| AC36V | 9VA | 0.25A | BA12 | 300mm lead wires |
Quick Selection Guide
| Nominal Diameter | Pipe Size | Recommended Model |
|---|---|---|
| DN10 | 3/8" | 2W-15-31X |
| DN15 | 1/2" | 2W-15-41X |
| DN20 | 3/4" | 2W-20-51X |
| DN25 | 1" | 2W-25-61X |
| DN32 | 1-1/4" | 2W-32-71X |
| DN40 | 1-1/2" | 2W-40-81X |
| DN50 | 2" | 2W-50-91X |
Media & Seal Material Selection
|
Selection Tips
1, Voltage Matching: AC220V is for standard mains power; DC24V/12V are better for industrial control, vehicle, and low-voltage systems. Always confirm the coil voltage to avoid burnout. 2,Temperature Limits: The seal material determines the maximum operating temperature. For example, NBR (80°C max) is not suitable for continuous use in hot water above 80°C, as it will degrade and leak. 3,Media Compatibility: Oily media requires VITON seals, as NBR will swell and fail in oil. Steam applications should use VITON or higher-grade seals. 4,Size Consistency: Always match the valve size to your pipe's nominal diameter. Using a smaller valve will restrict flow and shorten its lifespan.
Supplementary Key Points (3 Points Summary)
✅PTFE Seal UpgradePTFE sealing is newly upgraded, with temperature resistance up to 260℃, excellent resistance to strong acid, alkali and organic solvents, ideal for chemical and high-temperature steam working conditions.
✅Dual Power OptionsIt provides dual power specifications: 22VA/30VA for AC and 17W/24W for DC, matching different coil types and adaptable to customers' various power load requirements.
✅Model Code RuleThe letter X in the model stands for sealing material code: N=NBR, E=EPDM, V=VITON; just replace it directly when ordering.
Our Advantages:
✅Special low-temperature resistant material, stable working under cryogenic environment
✅Professional cryogenic sealing assembly, no leakage at ultra-low temperature
✅Optimized lengthened stem design, avoid coil frost damage from cold conduction
✅Precise piston structure, sensitive opening and closing with stable performance
✅Anti-cryogenic brittle valve body, excellent toughness and long service life
✅Standard connection thread, convenient installation and routine maintenance |
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