{"product_id":"hz-monstar-piercing-valve-kit-bpv-31-4-pack-1-4-sae-access-valves-core-removers-for-quick-installation","title":"HZ-MONSTAR Piercing Valve Kit BPV-31, 4-Pack — 1\/4\" SAE Access Valves \u0026 Core Removers for Quick Installation","description":"\u003cstrong\u003eHZ-MONSTAR BPV-31 Piercing Valve Kit is a compact 4-pack of bullet-style refrigeration piercing valves plus five 1\/4\" SAE access\/service valves designed for quick installation and safe charging, vacuuming, or pressure checks on 1\/4\", 5\/16\" and 3\/8\" OD tubing.\u003c\/strong\u003e\n\n\u003cp\u003eThis kit combines four BPV-31 bullet piercing tap valve assemblies with five 1\/4\" SAE access valves and the small tools required to install them. Each piercing valve replaces common OEM parts such as AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56 and MPV31 and fits a variety of refrigeration and HVAC tubing sizes. The components are corrosion-resistant metal with rubber O-rings and include core removers and hex wrenches to streamline installation in tight spaces.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these piercing and access valves simplify HVAC service tasks?\u003c\/h3\u003e\n\u003cp\u003eThe BPV-31 piercing valves let you tap into refrigeration lines without soldering or cutting for many temporary or permanent access needs. The included 1\/4\" SAE service valves provide a standardized Schrader-style port for vacuum pumps, refrigerant charging, and pressure gauges.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePiercing valve fits 1\/4\", 5\/16\", 3\/8\" OD tubing for broad compatibility.\u003c\/li\u003e\n  \u003cli\u003eAccess valves offer 1\/4\" SAE thread and Schrader connection for gauges.\u003c\/li\u003e\n  \u003cli\u003eCore removers and O-rings included for leak-resistant service ports.\u003c\/li\u003e\n  \u003cli\u003eHex key provided so no extra tools are required for installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and quality features should I expect from this kit?\u003c\/h3\u003e\n\u003cp\u003eAll metal parts in the kit are corrosion-resistant to withstand refrigerant system environments and routine exposure to moisture. Access valve caps are copper, the valves are pressure-tested, and each service port includes a rubber O-ring to help maintain a tight seal after installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCorrosion-resistant metal bodies for long-term durability.\u003c\/li\u003e\n  \u003cli\u003eCopper valve caps that resist wear and provide thermal stability.\u003c\/li\u003e\n  \u003cli\u003ePre-shipped testing ensures functional cores and seals.\u003c\/li\u003e\n  \u003cli\u003eRubber O-rings included to reduce risk of leaks at the port.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and what clearance or tools are needed?\u003c\/h3\u003e\n\u003cp\u003eThe BPV-31 piercing valve’s compact footprint requires only about 2 inches of clearance, making it suitable for confined spaces inside refrigeration units or HVAC lines. Installation needs only the included hex key to drive the piercing screw; adapters in each kit help adapt to the tube OD, and the procedure is reversible if the system requires later modification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRequires approximately 2 inches of clearance for installation and operation.\u003c\/li\u003e\n  \u003cli\u003eIncludes a hex key for piercing screw — no additional tools required initially.\u003c\/li\u003e\n  \u003cli\u003eAdapters provided to match tubing diameter and ensure correct seating.\u003c\/li\u003e\n  \u003cli\u003eDesigned for use with standard HVAC service equipment like gauges and pumps.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The HZ-MONSTAR BPV-31 Piercing Valve Kit is for HVAC technicians, refrigeration installers, and competent DIYers who need a compact, tested access solution for charging, vacuuming, or checking pressures on small-diameter refrigerant lines. It’s useful when a quick tap-in is required without major line modification, and when standard 1\/4\" SAE service ports are needed for tools and gauges.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can these piercing valves be used on copper and aluminum tubing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The BPV-31 kits fit common 1\/4\", 5\/16\", and 3\/8\" OD tubing materials including copper and aluminum.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need additional tools to charge refrigerant after installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No extra tools are required to install; standard gauges and hoses are needed to charge or evacuate through the 1\/4\" SAE service ports.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HZ-MONSTAR","offers":[{"title":"Default Title","offer_id":55163488764247,"sku":"B09YXR6V6Y","price":33.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/hz-monstar-front-packaging-bpv31.jpg?v=1790344900","url":"https:\/\/britishgarage.co.uk\/products\/hz-monstar-piercing-valve-kit-bpv-31-4-pack-1-4-sae-access-valves-core-removers-for-quick-installation","provider":"British Garage","version":"1.0","type":"link"}