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Product Specifications:
| Item | Constant Pressure Expansion Valve |
| Adjustable Range | 0 psi to 90 psi |
| Adjustable Range | 5"Hg vacuum to 90 psig |
| Balanced Port Design | No |
| Configuration | Angle |
| Connector Inlet (in.) | 1/4 |
| Connector Inlet Size | 1/4" |
| Connector Outlet | 1/4" |
| Connector Outlet (in.) | 1/4 |
| Control | Used As Low Load Protection Device In Hot Gas Bypass Systems, Maintains Constant Evaporator Pressure Under All Load Conditions |
| Equalizer Type | Internal |
| Evaporator Temperature - Maximum | 40°F |
| Evaporator Temperature - Minimum | 0°F |
| For Capacity - Maximum | 2 ton. |
| For Capacity - Minimum | 1 ton. |
| For Refrigerant Type | R-134A, R-404A |
| Inlet Connection Gender | Female |
| Inlet Connection Size | 1/4" |
| Inlet Connection Type | Sae Flare |
| Maximum Operating Pressure | 500 psi |
| Nominal Capacity | 2 ton. |
| Nominal Capacity | 0.88 to 4.24 Tons |
| Not For Refrigerant Type | Ammonia |
| Not For Use With | Ammonia |
| Outlet Connection Gender | Female |
| Outlet Connection Size | 1/4" |
| Outlet Connection Type | NPT |
| Outlet Type | FNPT |
| Parker Model Number | A-1 |
| Product Type | Thermostatic Expansion Valve |
| Refrigerant | All |
| Series | A Series |
| Superheat | Externally Adjustable |
| Superheat Adjustment | Externally Adjustable |
| Type | Adjustable |
Shipping Info:
| Ship weight (kg) | 0.2 |
| Ship height (cm) | 7.11 |
| Ship length (cm) | 11.94 |
| Ship width (cm) | 11.43 |
| HS code | 8481801050 |
| Country of Origin | US |
Product Details:
- Ideal for controlling the downstream pressure in a refrigeration system and air conditioning applications
- Pressure can be adjusted from 0 to 90 psig
- Made of brass, copper, and stainless steel; bypass bleeds available
- Offers a maximum operating temperature of 500 psig high side & 225 psig low side
Product Variants
| Product | Model | Connector Outlet | Connection Type | Balanced Port Design | Equalizer Type | Nominal Capacity | Superheat | Type | Refrigerant | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
A-2 | 1/2" | SAE Flare Angle | No | Internal | 2 ton. | Externally Adjustable | Adjustable | All | €168.92 |
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PARKER A-1 Thermostatic Expansion Valve, A, Angle, 2 ton Nominal Capacity - Gen, Externally Adj, 2 ton
€172.65 /unit
