HONGSEN CV Series Direct-Flow Refrigeration Check Valves
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HONGSEN CV Series Direct-Flow Refrigeration Check Valves
Description
Product Overview
HONGSEN CV Series check valves are direct-flow, one-way valves designed for refrigeration, cold-storage and air-conditioning piping systems.
The valve allows refrigerant to flow in the specified direction while helping prevent reverse flow when the compressor stops or when system pressure conditions change. According to HONGSEN’s official product data, the CV series can be installed in liquid, suction-gas and hot-gas piping.
Both SAE flare and ODF solder connection versions are available. The internal valve-seat and sealing structure is designed to provide reliable shutoff performance with a low opening-pressure differential.
Key Features
- Direct-flow check-valve design
- Prevents reverse refrigerant flow
- Suitable for liquid, suction-gas and hot-gas piping
- SAE flare and ODF solder connections available
- Low minimum opening-pressure differential
- Reliable valve-seat and sealing performance
- Suitable for applicable HCFC and HFC refrigerants
- Five connection sizes from 1/4 to 3/4 inch
- Designed for refrigeration, cold-storage and air-conditioning systems
Technical Specifications
| Item | Specification |
|---|---|
| Brand | HONGSEN |
| Series | CV |
| Product Type | Direct-Flow Refrigeration Check Valve |
| Flow Pattern | Straight / Direct Flow |
| Connection Options | SAE Flare or ODF Solder |
| Applicable Refrigerants | HCFC and HFC refrigerants |
| Medium Temperature Range | −40°C to +120°C |
| Maximum Working Pressure | 3.0 MPa |
| Maximum Test Pressure | 4.5 MPa |
| Minimum Opening Differential | 0.03 MPa |
Model Selection
| Official Model | SAE Flare | ODF Solder | Internal Diameter | Kv |
|---|---|---|---|---|
| CV-6 | 1/4 SAE | 1/4 ODF | 4.8 mm | 0.56 m³/h |
| CV-10 | 3/8 SAE | 3/8 ODF | 8 mm | 1.43 m³/h |
| CV-12 | 1/2 SAE | 1/2 ODF | 10 mm | 2.05 m³/h |
| CV-16 | 5/8 SAE | 5/8 ODF | 13 mm | 3.60 m³/h |
| CV-19 | 3/4 SAE | 3/4 ODF | 16 mm | 5.50 m³/h |
Kv is the water flow rate in m³/h at a pressure differential of 100 kPa and a water density of 1 t/m³.
Applications
- Refrigeration liquid lines
- Compressor suction-gas lines
- Hot-gas piping
- Cold-room refrigeration systems
- Commercial refrigeration equipment
- Refrigerated warehouses
- Condensing units
- Air-conditioning systems
Installation Notes
- Install according to the flow-direction arrow marked on the valve body.
- Select the connection size according to the refrigerant pipe diameter.
- Do not exceed the stated working pressure or temperature range.
- Protect the valve body from excessive heat during brazing.
- Confirm refrigerant compatibility and system operating conditions before ordering.
| Connection |
SAE, ODF |
|---|---|
| Model |
CV-6, CV-10, CV-12, CV-16, CV-19 |