Custom Product Attributes Refrigerant Cylinder Non-Return Valve
Product Description
The Air Conditioner Refrigerant Cylinder Non-Return Valve is a specialized fitting designed to ensure the safe, efficient, and reliable handling of refrigerants. Built from high-quality brass, this valve is engineered to prevent backflow during the charging or discharging process, protecting both the refrigerant cylinder and the HVAC system.
This non-return (one-way) valve is compatible with popular refrigerants including R22, R134a, R410A, R407C, and R32, making it suitable for a wide range of air conditioning and refrigeration applications. Its precision-engineered construction guarantees leak-proof sealing under high pressure, ensuring safety and system integrity.
By allowing refrigerant to flow in only one direction, the valve prevents contamination, reverse leakage, and system malfunction. It is widely used by HVAC professionals for maintenance, refrigerant recovery, and system installation. With easy installation through standard SAE connections, this non-return valve is an essential spare part for both residential and commercial air conditioning systems.
Product Advantages
- High-quality brass construction ensures strength, durability, and corrosion resistance
- One-way valve design prevents refrigerant backflow and contamination
- Leak-proof seal provides safe handling during charging and discharging
- Compatible with multiple refrigerants, including R22, R134a, R410A, R407C, and R32
- Easy installation with standard SAE threaded connections
- Suitable for HVAC technicians, maintenance services, and system installers
Installation Instructions
- Select the appropriate valve size according to your cylinder and refrigerant type.
- Connect the non-return valve securely to the refrigerant cylinder outlet.
- Ensure the valve is tightened to prevent leakage.
- Attach the charging hose or manifold gauge to the valve connection.
- After charging or servicing, remove tools and check that the valve automatically seals to prevent backflow.
Our Services
- OEM/ODM customization available (sizes, packaging, logo printing)
- Technical support and guidance for proper installation and application
- Fast shipping with secure export packaging
- Free samples available for quality inspection (conditions apply)
- One-year warranty with reliable after-sales service
Product Attributes
| Attribute |
Details |
| Material |
High-quality brass / copper alloy |
| Size Options |
1/4" SAE, 3/8" SAE, or customized |
| Valve Type |
Non-return / one-way check valve |
| Application |
Refrigerant cylinders, HVAC, refrigeration charging and discharging |
| Compatible Refrigerants |
R22, R134a, R410A, R407C, R32, and other fluorinated refrigerants |
| Working Pressure |
Up to 4.2 MPa (≈ 600 psi) |
| Temperature Range |
-40℃ to +120℃ |
| Function |
Prevents backflow, leakage, and system contamination |
| Standards / Certification |
CE, ISO, RoHS compliant |
| MOQ |
50 pcs (negotiable for bulk orders) |
| Warranty |
1 year |
| Packaging |
Poly bag + carton box (custom packaging available) |
FAQ
Q1: When will you arrange the delivery?
A: Generally 1-2 weeks after the payment, and we will continually inform customer the goods carriage status, until you receive the goods.
Q2. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q3: Can we get the some technological training?
Our company provide the complete technological training, including: installation, use and maintenance.
Q4: How long is your products warranty?
A: The products of our lifetime for you to provide maintenance, one year warranty, Courier fees to pay half, after a year of maintenance fees shall be borne by the buyers.
Q5: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
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