01AIR CONDITIONER ACCESSORIES
Precision components for refrigerant conversion
The transition from legacy R22 systems to modern R134A setups demands components that perform with quiet reliability. This kit provides the essential hardware for that shift, combining robust metallurgy with precise engineering to handle the nuances of refrigerant flow.
Designed for technicians and enthusiasts managing air conditioning units, this set includes a universal retrofit valve and a dedicated BPV-31 piercing tap. It suits applications where maintaining specific pressure ranges is critical for system integrity.


02MATERIALS
Robust brass and zinc construction
The core of the retrofit valve is forged from brass alloy, offering durability against the corrosive nature of refrigerants. Plastic elements provide necessary insulation and grip, while zinc alloy components add structural strength to the assembly. The black finish on the exterior suggests a utilitarian design focused on function over form, suitable for the often concealed spaces behind HVAC panels.

04COMPATIBILITY
Universal threading and pipe fitment
The retrofit valve features a maximum internal thread of 1/4 inch SAE female and a minimum of 8v1 female, allowing it to connect with various standard fittings. The outer thread utilizes a low-pressure 13mm R134A quick coupler for rapid attachment. The included BPV-31 piercing tap replaces several common part numbers and fits pipes with outside diameters of 1/4 inch, 5/16 inch, and 3/8 inch.
CONTENTS
Complete kit for immediate installation
The package contains one universal retrofit valve, complete with a protective dust cap to keep debris out before use. Alongside it sits a pack of the BPV-31 piercing tap valve kit, ready to be deployed onto existing lines. The compact carton measures 11 x 22 x 33 cm, making it easy to store in a tool chest or carry directly to the job site without taking up excessive space.
AT A GLANCE
The key points
- Brass alloy valve body with plastic and zinc accents
- Handles working pressures from 1.6MPa to 3.2MPa
- Operates effectively within a 15 to 80 degree range
- Includes one universal retrofit valve and dust cap
- Features one pack of the BPV-31 piercing tap kit
About this product
Specifications:Material: Brass Alloy+Plastic+Zinc AlloyWorking Pressure: 1.6MPa~3.2MPa.Temperature: 15-80 CentigradeUniversal Retrofit Valve:Max. Internal Thread Type: 1/4″ SAE Female ThreadMin. Internal Thread Type: 8v1 Female ThreadOuter Thread: Low Pressure 13mm R134A Quick CouplerBPV-31 Piercing Tap Valve:Replace part number: AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31. Compatible with 1/4 inch, 5/16 inch, 3/8 inch outside diameter pipes.Package Included:1 Pc x Universal Retrofit Valve with Dust Cap1 Pack x BPV-31 Piercing Tap Valve Kit
A/C Retrofit Valve & BPV31 Piercing Tap Kit Accessories R22 New R134A Fo New











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