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The DW Series Cryogenic Solenoid Valve is a premier control valve specifically engineered and highly customized for deep refrigeration, ultra-low temperature freezing equipment, cold chain transport logistics, and various industrial fluid loops conveying cryogenic media such as refrigerants. Covering a comprehensive size spectrum from DN15 to DN50, this series boasts an ultra-compact, streamlined geometric profile. While significantly optimizing spatial utilization, it fully supports and complies with both threaded and flanged connection standards, greatly facilitating quick on-site installation, quick assembly, and seamless adaptation within diverse international piping networks. The internal flow channels and sealing pairs have undergone deep fluid-dynamics and materials optimization specifically calibrated for ultra-low temperatures and medium-to-high differential pressure working conditions. The valve delivers exceptional responsiveness, minimal pressure drop, and rapid open/close cycling within a reliable 0.4 to 10 bar pressure range. To withstand rigorous operating environments, the valve bodies are meticulously manufactured from high-toughness SS304 Stainless Steel, ensuring universal compatibility with cryogenic liquids and gases. It achieves absolute structural integrity and optimal gas-tightness during long-term high-frequency operations, making it an ideal, high-efficiency control component for modern automated cryogenic fluid loops and modular skid designs.

Product Image:DW Low-Temperature Solenoid Valve
Feature
Extreme Cryogenic Resilience and Low-Temperature Anti-Brittleness: Purpose-built for the harsh thermal spans of minus 100 to 50 degrees Celsius. Meticulously formed from high-toughness SS304 stainless steel, the valve structure retains superb tensile strength and impact resistance even at deep temperatures approaching absolute zero, entirely eliminating the catastrophic risk of low-temperature cold-embrittlement or fracturing common in conventional alloys.
Versatile Industrial Connections and Compact Envelope: Broadly available from DN15 up to DN50, providing both durable threaded joints and high-integrity flanged interfaces to cater to varied field sealing protocols while successfully compacting the longitudinal and lateral spatial footprints.
Superior Flow Capacity and Wide-Range Pressure Stroke: The internal pilot geometries are calculated via precise fluid dynamics to enforce swift actuation strokes. It performs sharp, instantaneous open/close cycles across the 0.4 to 10 bar spectrum, ensuring extensive high-flow capacity while driving pressure drops and cooling loss down to absolute minimums.
Premium Metallurgy for Clean Refrigerant Environments: The SS304 stainless steel offers exceptional machining accuracy alongside phenomenal chemical compatibility and rust-washout resistance against Freon, liquid CO2, eco-friendly refrigerants, and industrial neutral cryogenic agents.
Advanced Low-Temperature Cryo-Sealing Technology: The internal seal rings and seat interfaces incorporate specialized low-temperature composite compounds. They preserve outstanding physical elasticity and deformation recovery under severe cryo-cycling, thoroughly solving the chronic issues of internal leakage or frost-jamming found in standard elastomers and securing long-term leak-proof sealing.

Structure Diagram:DW Low-Temperature Solenoid Valve
Specification Sheet
Operating Voltage: AC220~240V, AC110V 50/60Hz 20VA, DC24V 20W. IP65 Class H, other voltages can be customized. Standard lead wire type, optional terminal type.

Outline Diagram:DW Low-Temperature Solenoid Valve
Outline Dimension Table (Unit:mm)
| Product Model | Nominal Diameter | Threaded Interface | A (mm) | B (mm) | C (mm) |
| DW-15 | 15 | 1/2" | 70 | 53 | 176 |
| DW-20 | 20 | 3/4" | 74 | 57 | 183 |
| DW-25 | 25 | 1" | 92 | 69 | 186 |
| DW-32 | 32 | 1'1/4" | 110 | 85 | 205 |
| DW-40 | 40 | 1'1/2" | 122 | 90 | 209 |
| DW-50 | 50 | 2" | 160 | 117 | 231 |
| Product Model | Nominal Diameter DN (mm) | Length A (mm) | Height H (mm) | Flange Outer Diameter D (mm) | Bolt Circle Diameter K (mm) | Inner Diameter d (mm) | Flange Thickness C (mm) | Thickness of Facing f (mm) | Number of Holes and Diameter |
| DW-32JF | 32 | 140 | 259 | 140 | 100 | 76 | 18 | 2 | 4 holes - Diameter 18 |
| DW-40JF | 40 | 148 | 269 | 150 | 110 | 84 | 18 | 2 | 4 holes - Diameter 18 |
| DW-50JF | 50 | 182 | 284 | 165 | 125 | 99 | 20 | 3 | 4 holes - Diameter 18 |

Model:
ZCZ-15/ZCZ-20/ZCZ-25/ZCZ-32/ZCZ-40/ZCZ-50/ZCZ-25F/ZCZ-32F/ZCZ-40F/ZCZ-50F/ZCZ-40CF/ZCZ-50CF/ZCZ-65CF/ZCZ-80CF/ZCZ-100CFSpecification:
DN15~100Pressure:
0.4~10barMaterial:
Brass, Cast Iron
Model:
ZQDF-15/ZQDF-20/ZQDF-25/ZQDF-32/ZQDF-40/ZQDF-50/ZQDF-25F/ZQDF-32F/ZQDF-40F/ZQDF-50FSpecification:
DN15~50Pressure:
0~8barMaterial:
Heavy-duty Cast Brass
Model:
ZG-16C/ZG-25C/ZG-40C/ZG-64C/ZG-16P/ZG-25P/ZG-40P/ZG-64P/ZG-16R/ZG-25R/ZG-40R/ZG-64RSpecification:
DN20-DN250Pressure:
PN16,PN25,PN40,PN64Material:
Cast Steel,Stainless Steel,Duplex Stainless Steel