KAK angle seat check valves are precision-engineered for one-way flow control in HVAC and refrigeration pipelines. The 90-degree brass body with copper ODF ends provides compact installation and reliable sealing. Compatible with major refrigerants including R134a, R410A, R407C, and R404A.
Key Features
- Brass angle seat body with copper ODF connections (sweat type).
- Compact 90-degree structure minimizes space and welding points.
- Low cracking pressure, low pressure drop, and stable sealing performance.
- Compatible with HFC/HFO refrigerants and POE/MO/PAG oils.
- OEM service: customized dimensions, cracking pressure, and logo available.
Applications
- HVAC condensing units and heat pump circuits.
- Commercial refrigeration and cold storage systems.
- Liquid line or hot gas bypass check function.
Technical Data
- Max Working Pressure: 45 bar (650 psi)
- Operating Temperature: -40°C ~ +120°C
- Flow Direction: Marked by arrow on valve body
Ordering Information
| KAK Model | Tube Size (ODF) | Connection Type | Cross Reference* |
|---|---|---|---|
| KAK-ASCV-078 | 7/8” ODF | Angle 90° | NRV 22s (ref.) |
| KAK-ASCV-118 | 1-1/8” ODF | Angle 90° | NRV 28s (ref.) |
| KAK-ASCV-138 | 1-3/8” ODF | Angle 90° | NRV 35s (ref.) |
*Cross reference is for identification only. KAK is not affiliated with the referenced brand.
FAQ
Q1. What is an angle seat check valve?
A. It is a 90° brass check valve designed for one-way refrigerant flow in HVAC systems, combining compact design and reliable sealing.
Q2. What is the difference between an angle seat and slanted seat check valve?
A. The angle seat type forms a full 90° path, while the slanted seat design has a smaller internal angle. Both serve the same function but fit different piping layouts.
Q3. Is it suitable for R410A and R32?
A. Yes. The valve is compatible with HFC and HFO refrigerants, including R134a, R404A, R407C, R410A, and R32.
Q4. Can it replace a 90-degree brass check valve?
A. Yes. Angle seat check valves are often referred to as 90-degree check valves due to their body geometry and identical function.
Q5. Does KAK provide OEM labeling?
A. Yes. OEM & ODM services are available, including private labeling, pressure tuning, and packaging customization.