Hongkong extend International Enterprise Limited
| Connection Spec | 7/8" ODF copper solder |
| Type | Discharge Bypass Valve |
| Packaging Details | box |
| Supply Ability | 5000 |
| Payment Terms | T/T |
| Delivery Time | 5-8days |
| Adjustable Pressure Range | 0-80 PSIG |
| Model Number | ADRHE-6-0/80 |
| Brand Name | Sporlan |
| Place of Origin | US |
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Product Specification
| Connection Spec | 7/8" ODF copper solder | Type | Discharge Bypass Valve |
| Packaging Details | box | Supply Ability | 5000 |
| Payment Terms | T/T | Delivery Time | 5-8days |
| Adjustable Pressure Range | 0-80 PSIG | Model Number | ADRHE-6-0/80 |
| Brand Name | Sporlan | Place of Origin | US |
Sporlan ADRHE-6-0/80 Hot Gas Bypass Valve
1. Basic Information
1. Brand: Sporlan (a professional U.S. refrigeration valve manufacturer)
2. Model: ADRHE-6-0/80
3. Type: External equalizer hot gas bypass valve
4. Connection Spec: 7/8" ODF copper solder connections on both sides; 1/4" external equalizer port at the bottom
5. Adjustable Pressure Range: 0–80 PSIG
2. Core Function & Operating Principle
Function
- Widely applied in refrigerated air dryers, low-temperature cold storage rooms and small refrigeration units to stabilize evaporating pressure. It prevents low-pressure issues including compressor frosting, liquid slugging and overload shutdown protection.
- When system load drops and evaporating pressure falls below the set value, the valve opens automatically. It bypasses high-temperature discharge gas from the compressor to the evaporator inlet to raise pressure and temperature on the low-pressure side.
Operating Logic
1. Full-load normal operation: The valve remains fully closed when evaporating pressure exceeds the set point, with no bypass flow.
2. Low-load operation: Once evaporating pressure drops below the set threshold, the diaphragm pushes the valve plug open to feed hot discharge gas into the low-pressure circuit.
3. Top adjustment knob: Rotate it to change spring preload and adjust the valve opening pressure.
3. Typical Application Scenarios
1. Refrigerated compressed air dryers (most common matching component)
2. Small cold storage & low-temperature display cabinets with reciprocating compressors
3. Mini VRF systems and small air-cooled units for low-load pressure stabilization
4. Structural Features
- Brass valve body with high pressure resistance and corrosion resistance; extended copper tube stubs for easy field brazing installation
- Bottom hex nut external equalizer port to accurately sample real evaporator pressure for superior control precision
- Protective cap on top adjustment screw for on-site opening pressure calibration
- Built-in strainer to block pipeline debris and avoid valve plug sticking
5. Installation & Operation Notes ⚠️
1. Piping layout: Connect one tube to compressor discharge line, the other to evaporator inlet; route the equalizer tube to the evaporator low-pressure side.
2. Brazing protection: Wrap the valve body with wet cloth during welding to avoid high-temperature damage to internal diaphragm components.
3. Pressure adjustment: Turn the adjustment cap clockwise to raise opening pressure; turn counterclockwise to lower opening pressure.
4. Refrigerant compatibility: Compatible with common refrigerants including R22, R404A and R134a; maximum working pressure 400 PSIG.
6. Series Model Differentiation
- ADRS: Internal equalizer hot gas bypass valve
- ADRHE: External equalizer model (the unit shown in the picture), delivers more precise pressure control for circuits with high line resistance
- Digit suffix "6" stands for valve port size; "0/80" refers to the adjustable pressure range of 0 to 80 PSI
Company Details
Business Type:
Agent
Year Established:
2006
Total Annual:
>lessthan$1,000,000
Employee Number:
>less than 50
Ecer Certification：
Site Member
HongKong Extend International Enterprise Limited We are HongKong Extend International Enterprise Limited based in Dongguan , China. We are member of Tradekey.com since December, 2011. Our business is related to Industrial Machinery industry and we specifically deal in HITACHI SCROLL... HongKong Extend International Enterprise Limited We are HongKong Extend International Enterprise Limited based in Dongguan , China. We are member of Tradekey.com since December, 2011. Our business is related to Industrial Machinery industry and we specifically deal in HITACHI SCROLL...
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