Boltigen 30-Piece 1/4" SAE Schrader Access Service Valves - 3.54" Stem, Brass/Copper Alloy

Boltigen 30-piece access service valve kit is a set of 1/4" SAE Schrader-style service valves with 3.54" stems, designed to give fast, reliable access for charging, vacuums and pressure checks on refrigeration and air conditioning systems.

These brass/copper alloy access valves provide a spring-assisted poppet core inside a threaded stem, packaged with removable caps and a valve-core tool. Built to resist corrosion and repeated use, the kit supplies 30 identical valves so technicians and DIYers can service multiple lines without running short. The valves are compatible with standard refrigeration and HVAC service tasks that use 1/4" SAE fittings and 1/4" OD hoses.

How do these valves make charging and pressure checks easier?

Each valve features a self-contained stem with an internal poppet core that opens when engaged, allowing refrigerant or vacuum lines to be connected without removing the service port. That means quicker access and fewer leaks during routine tasks. Use with standard charging hoses, gauges, or piercing tools when needed.

• 1/4" SAE inlet mates with common HVAC fittings
• 3.54" stem length simplifies connections in tight spaces
• Spring-assisted poppet core reduces accidental discharge
• Threaded body secures into service ports for stable use

What materials and build features affect durability?

The valves combine brass and copper-alloy components chosen for corrosion resistance and wear strength in refrigerant environments. The plated finish helps prevent seizing and maintains a reliable seal over repeated installations. Each valve comes with a protective cap and an included valve-core remover for maintenance or replacement.

• Corrosion-resistant metal construction for longevity
• Plated surfaces for reduced galling and easier removal
• Includes caps to protect threads and cores from debris
• Valve-core remover included for on-site servicing

Are these valves compatible with my HVAC and refrigeration systems?

The Boltigen valves are intended for systems that use 1/4" SAE service fittings and 1/4" OD connection points, common in residential and light commercial refrigeration and air conditioning. They work well with charging hoses, vacuum pumps and pressure gauges designed to ISO/SAE fittings. Do not use them with incompatible thread sizes or in applications outside recommended refrigerant handling practices.

• Designed for 1/4" SAE service ports and 1/4" OD hoses
• Suitable for vacuum, charging, and pressure testing tasks
• Not a substitute for specialty valves on non-standard fittings
• Pair with compatible piercing tools or hose fittings when required

What’s included and how does the one-year warranty work?

The package provides 30 complete access service valves, each with its own cap and a valve-core remover for easy maintenance. Boltigen covers manufacturing defects under a limited one-year warranty; contact customer support if a valve fails under normal use. Keep proof of purchase and describe the issue to begin a warranty claim.

• 30 valves, each with cap and valve-core tool
• Spare cores can be serviced or replaced as needed
• One-year limited warranty against manufacturing defects
• Customer support available for returns or part issues

Who this is for: This 30-piece Boltigen kit fits HVAC technicians, refrigeration service professionals, and informed DIYers who need a ready supply of reliable 1/4" SAE access valves for charging, leak checks, and vacuum work. It’s especially useful when servicing multiple systems or keeping a stocked toolbox for on-site repairs and maintenance.