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We are the behind-the-scenes manufacturing partner for leading tool brands, wholesale distributors, and equipment OEMs who demand flawless quality and supply chain reliability. By sourcing adapters directly from the Fanovo factory, our partners secure a significant advantage with superior materials, precision engineering, and highly competitive wholesale pricing.
Why Source Refrigerant Adapters from the Fanovo Factory?
Precision CNC Machining: A perfect seal starts with a perfect fit. All Fanovo adapters are CNC-machined from solid brass bar stock for flawless threading, perfect seating, and guaranteed compatibility. This eliminates the risk of leaks, stripped threads, and refrigerant loss that plagues inferior-quality adapters.
Solid Brass for Maximum Durability: Our adapters are built from high-grade solid brass (not hollow or cast from weak alloys), providing exceptional strength to withstand high torque and repeated use without cracking or deforming. They offer excellent corrosion resistance for a long service life.
Comprehensive Factory Catalog: We manufacture an extensive range of adapters to solve any connection challenge. From common R-410A tank adapters to specialized vacuum pump and automotive R-1234yf fittings, we are the single-source supplier for your entire product line.
Factory-Direct Wholesale Economics: Increase your margins by cutting out the middleman. Sourcing in bulk directly from our factory provides you with a premium product at a cost that distributors and importers cannot match, giving you a powerful competitive edge.
Your OEM & Private Label Partner: We provide complete OEM solutions, from creating custom adapter kits to private labeling and specialized retail packaging. Let us be your factory for building a comprehensive and reliable line of branded HVAC/R accessories.







Our full line of refrigerant adapters supports mainstream refrigerants for automotive AC and stationary HVAC systems, including R134a, R1234YF, R410A, R32, R22 and R12. We offer dedicated conversion couplers such as R1234YF to R134A adapters for new energy vehicle air conditioning, R12 to R134A conversion quick couplers, and R410A charging adapters for mini-split air conditioners. Important note: Adapters are engineered for specific refrigerant systems; do not mix cross-system adapters to prevent system contamination and safety risks. Contact our team if you need custom compatibility solutions for special refrigerants.
All our refrigerant adapters & quick couplers adopt high-quality forged HPb59 solid brass body. Brass features excellent pressure resistance, anti-corrosion performance and stable thread structure, resisting cracking and thread stripping under frequent disassembly. Internal sealing components use durable HNBR rubber O-rings, which are resistant to refrigerant oil and low temperature, maintaining stable sealing performance during repeated charging and vacuum operations. We can provide material test reports upon bulk order request.
Yes, we support comprehensive OEM & ODM customization services. We can laser engrave your brand logo on brass bodies, adjust knurling design, customize color caps (red, blue, yellow as standard options), and develop new thread specifications or special conversion sizes according to your drawings. MOQ for custom logo is negotiable. If you have special requirements on packing, internal O-ring materials or packaging labels, send us your requirements for a detailed quotation.
Our adapters are strictly pressure and leakage tested before shipment. Precision machined SAE flare threads and matched HNBR O-rings ensure tight connections during AC evacuation, pressure testing and refrigerant charging. We recommend regularly inspecting and replacing aging O-rings after long-term heavy use. Improper over-tightening during installation will damage threads and seals, which may cause leakage. If you need replacement O-ring kits for matching adapters, we can supply them as spare parts.
Standard refrigerant adapters and quick couplers are rated for maximum working pressure up to 450 PSI, suitable for conventional automotive AC and residential HVAC service work. R410A series adapters are specially reinforced to adapt to higher operating pressure of inverter air conditioning systems. Each product page lists exact pressure parameters. If you need adapters for ultra-high pressure industrial refrigeration equipment, please contact us for custom heavy-duty models.
Most of our refrigerant fittings adopt widely used **1/4″ SAE female/male flare**, the universal standard for HVAC manifold charging hoses. We also stock conversion adapters for special ports, including 5/16″ SAE for R410A mini split units and auto AC service port adapters. Our R410A straight brass ball valve adapters are designed to directly connect standard 1/4″ charging hoses. If you are unsure whether the thread size matches your existing tools, send us your hose specification and we will recommend the correct model.
Stock standard refrigerant adapters support small trial orders. For regular bulk wholesale orders, the MOQ is flexible. Mixed orders of different adapter models (quick couplers, ball valve adapters, conversion fittings) within one shipment are accepted, which helps distributors enrich product range without large single-model inventory pressure. Contact our sales team to confirm available in-stock items and combined shipping cost.
Yes, we support sample testing for all refrigerant adapter series. You can select multiple different models (R1234YF quick coupler, R410A ball valve adapter, R134A conversion coupler etc.) for sample evaluation. Customers only need to cover sample cost and international shipping fee. Once formal bulk order is placed, we can discuss partial sample cost refund policy. Samples will be delivered within 3–7 working days after confirmation.
Automotive quick couplers (like R1234YF / R134A high/low side couplers) are designed to lock onto vehicle Schrader service ports, featuring automatic valve structure for fast connection without refrigerant loss. HVAC adapters and ball valve fittings are mainly used for stationary air conditioner charging manifolds, controlling refrigerant flow manually. Many technicians stock both types to cover car repair shop and residential air conditioning service jobs. Clearly confirm your application scenario when selecting models.
After each use, wipe away residual refrigerant oil and dirt on threads and sealing surfaces. Avoid dropping the adapter violently, which can deform brass bodies and damage internal valve cores. Keep spare HNBR O-rings on hand and replace seals once they harden or crack. Store adapters in dry conditions to prevent oxidation. Do not use brute force when threading; hand-tighten properly to avoid damaging flare threads. Fanovo can supply matching spare O-ring packs for all adapter models.

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