Tigbear 20pc Service Access Valve Kit — 1/4" SAE x 1/4" OD, 3.54" Stem, Brass/Copper with Spring Poppet

Tigbear's 20-piece service access valve kit gives HVAC technicians and DIYers a complete set of reliable 1/4" SAE x 1/4" OD access valves with 3.54" stems for charging, testing and servicing refrigerant systems.

This kit bundles twenty brass and copper service access valves engineered for compatibility with common refrigerants such as R22, R410A and R134A. Each valve uses a spring-assisted poppet core and includes caps, valve core removers and internal o-rings designed to reduce leaks during vacuuming, charging and pressure checks. The combination of corrosion-resistant materials and a length suited for brazing and mounting makes this a practical choice for fieldwork and shop repairs.

How do these service access valves fit into HVAC maintenance?

These valves provide the service port needed to connect gauges, vacuum pumps and charging hoses to refrigeration and air conditioning systems. The threaded 1/4" SAE inlet and 1/4" OD stem match widely used fittings so you can quickly establish a sealed service connection.

• 20 valves in a kit for multiple units or spare inventory
• 1/4" SAE thread on the inlet for standard manifold hoses
• Poppet core opens when engaged and reseals automatically
• Included caps and core-remover tool simplify field use

What makes the Tigbear valves durable and field-ready?

These valves are constructed from corrosion-resistant brass and copper materials that withstand routine exposure to refrigerants and brazing heat. A robust poppet design and internal rubber o-ring help minimize leakage and maintain integrity during repeated service cycles.

• Brass and copper construction resists corrosion and heat
• Spring-assisted poppet core for reliable opening/closing
• O-ring seal to reduce refrigerant loss during work
• Valve caps protect the service port when not in use

Are these valves easy to install and use for charging or leak testing?

Installation is straightforward for any technician familiar with SAE service ports: thread the valve into the system port, tighten, and use the included cap and core remover as needed. The kit's standard dimensions align with most gauges and hoses, speeding up charging, evacuation and pressure checks.

• 1/4" SAE thread and 1/4" OD stem match common service fittings
• 3.54" stem length (4.5" total) offers reach for brazing and mounting
• Preinstalled Schrader-style cores for easy connection to tools
• Cap with core remover included to maintain and service valves

Which refrigerants and applications are these valves compatible with?

The Tigbear access valves are suitable for use with popular HVAC refrigerants such as R22, R410A and R134A and are intended for tasks like vacuuming, charging, and pressure testing. They are appropriate for residential and light-commercial refrigeration and air conditioning systems.

• Compatible with R22, R410A and R134A refrigerant systems
• Useful for vacuuming, charging and pressure diagnostics
• Works on both refrigeration and residential/commercial AC units
• Designed for technicians and informed DIY servicing

Who is this for: This Tigbear 20-piece service access valve kit is aimed at HVAC technicians, refrigeration specialists and well-equipped DIYers who need a bulk supply of reliable service ports. If you maintain multiple systems, stock spare parts for field service, or frequently perform charging and leak checks, this kit offers standardized fittings, durability and the accessories to work efficiently on common refrigerant systems.