{"product_id":"mastercool-90-degree-shut-off-valve-w-red-hose-1-4-1-4","title":"Mastercool 90289 — Red 90° Manual Shut-Off Valve 1\/4\" Flare with Flexible Hose (High Pressure)","description":"\u003ch3\u003e90° Design for Tight Spaces - EPA-Compliant High-Pressure Refrigerant Containment\u003c\/h3\u003e\u003cp\u003eThe Mastercool 90289 red 90-degree manual shut-off valve is designed for tight spaces where straight valves won't fit. Featuring needle valve design with flexible hose, this valve controls high-pressure refrigerant flow with a simple quarter-turn of the handle. EPA requires shut-off valves within 12 inches of charging hose ends to prevent unnecessary venting of refrigerant — using shut-off valves is much safer than allowing refrigerant to blow out during service.\u003c\/p\u003e\u003ch4\u003e90° Design: The Solution for Tight Spaces\u003c\/h4\u003e\u003cp\u003eThe \u003cstrong\u003e90-degree angled design\u003c\/strong\u003e is specifically engineered for cramped engine bays, confined equipment spaces, and awkward service port locations where straight valves create clearance problems. The right-angle configuration keeps the valve handle accessible whilst allowing the hose to route around obstacles. This design transforms difficult high-pressure connections into straightforward service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy This Matters:\u003c\/strong\u003e High-pressure service ports are often located in the most awkward positions — behind engines, underneath dashboards, in tight equipment compartments. The 90-degree valve lets you connect and control refrigerant flow even when space is severely limited.\u003c\/p\u003e\u003ch4\u003eNeedle Valve Design for Precise Control\u003c\/h4\u003e\u003cp\u003eThe \u003cstrong\u003eneedle valve design\u003c\/strong\u003e provides precise refrigerant flow control with a simple quarter-turn of the handle. Unlike ball valves that are either fully open or closed, needle valves allow gradual flow adjustment if needed, whilst still providing positive shut-off when fully closed — essential for high-pressure applications.\u003c\/p\u003e\u003ch4\u003eFlexible Hose for Easy Positioning\u003c\/h4\u003e\u003cp\u003eThe integrated \u003cstrong\u003eflexible hose\u003c\/strong\u003e works in conjunction with the 90-degree design to provide maximum positioning flexibility. Route the hose around obstacles, absorb movement, and reduce stress on connections — all whilst maintaining easy access to the valve handle.\u003c\/p\u003e\u003ch4\u003eEPA, SAE, and UL Compliant\u003c\/h4\u003e\u003cp\u003eMeets all \u003cstrong\u003eEPA, SAE, and UL requirements\u003c\/strong\u003e for refrigerant containment. EPA regulations require shut-off valves within 12 inches (30cm) of charging hose ends to prevent unnecessary refrigerant venting. Using proper shut-off valves protects the environment, reduces refrigerant waste, and demonstrates professional service standards.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e90° Angled Design\u003c\/strong\u003e — Perfect for tight spaces and awkward service port locations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeedle Valve Design\u003c\/strong\u003e — Quarter-turn operation with precise flow control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Hose\u003c\/strong\u003e — Easy positioning, reduces stress on connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed Colour\u003c\/strong\u003e — High-pressure discharge side identification (standard industry colour coding)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/4\" Flare Connections\u003c\/strong\u003e — Standard SAE fittings for universal compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA\/SAE\/UL Compliant\u003c\/strong\u003e — Meets all refrigerant containment requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrews Onto Hose End\u003c\/strong\u003e — Easy installation on existing charging hoses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design\u003c\/strong\u003e — Works where straight valves won't fit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eModel: 90289\u003c\/li\u003e\n\u003cli\u003eColour: Red (high-pressure discharge side)\u003c\/li\u003e\n\u003cli\u003eConnections: 1\/4\" Flare x 1\/4\" Flare\u003c\/li\u003e\n\u003cli\u003eValve Type: Needle valve, quarter-turn, 90-degree angle\u003c\/li\u003e\n\u003cli\u003eHose: Flexible design\u003c\/li\u003e\n\u003cli\u003eCompliance: EPA, SAE, UL\u003c\/li\u003e\n\u003cli\u003eDesign: Right-angle for tight spaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003ePart of the 90259 90° Shut-Off Valve Set\u003c\/h4\u003e\u003cp\u003eThe 90289 is the red (high-pressure) valve from the complete 90259 90° Manual Shut-Off Valve Set, which includes:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e90269: Blue 1\/4\" x 1\/4\" (low-pressure suction)\u003c\/li\u003e\n\u003cli\u003e90279: Yellow 1\/4\" x 1\/4\" (liquid line)\u003c\/li\u003e\n\u003cli\u003e90289: Red 1\/4\" x 1\/4\" (high-pressure discharge)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAlso Available\u003c\/h4\u003e\u003cul\u003e\u003cli\u003e90389: Red 1\/4\" x 3\/16\" (automotive applications)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eWhy 90° Valves Are Essential for Tight Spaces\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance\u003c\/strong\u003e — Right-angle design fits where straight valves create interference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessibility\u003c\/strong\u003e — Valve handle remains accessible in cramped spaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHose Routing\u003c\/strong\u003e — Easier to route hoses around obstacles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Installation\u003c\/strong\u003e — Proper valve placement without compromising access\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced Stress\u003c\/strong\u003e — Less strain on connections in tight installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003ePerfect For\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAutomotive A\/C service in cramped engine bays\u003c\/li\u003e\n\u003cli\u003eHVAC equipment with limited service port access\u003c\/li\u003e\n\u003cli\u003eCommercial refrigeration in confined spaces\u003c\/li\u003e\n\u003cli\u003eAny application where straight valves create clearance problems\u003c\/li\u003e\n\u003cli\u003eMobile service operations requiring flexible valve solutions\u003c\/li\u003e\n\u003cli\u003eUpgrading existing charging hose sets for tight-space applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eHow to Use\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall on Hose\u003c\/strong\u003e — Screw valve onto charging hose end (within 12 inches of manifold)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect to System\u003c\/strong\u003e — Attach hose to high-pressure service port with valve closed, 90° angle provides clearance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen Valve\u003c\/strong\u003e — Quarter-turn to open and allow refrigerant flow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClose When Done\u003c\/strong\u003e — Quarter-turn to close before disconnecting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisconnect Safely\u003c\/strong\u003e — Remove hose with refrigerant contained in valve\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch4\u003eColour Coding Standard\u003c\/h4\u003e\u003cp\u003eIndustry-standard colour coding helps prevent connection errors:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlue (90269)\u003c\/strong\u003e — Low-pressure suction side\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYellow (90279)\u003c\/strong\u003e — Liquid line \/ centre hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed (90289)\u003c\/strong\u003e — High-pressure discharge side\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003e90° vs Straight Valves: When to Choose Each\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eChoose 90° Valves (90259 Set) When:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eService ports are in tight, confined spaces\u003c\/li\u003e\n\u003cli\u003eStraight valves create clearance problems\u003c\/li\u003e\n\u003cli\u003eYou need to route hoses around obstacles\u003c\/li\u003e\n\u003cli\u003eWorking in cramped engine bays or equipment compartments\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eChoose Straight Valves (90262 Set) When:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eService ports have good clearance\u003c\/li\u003e\n\u003cli\u003eStraight-line hose routing is preferred\u003c\/li\u003e\n\u003cli\u003eWorking in open, accessible locations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eEPA-Compliant High-Pressure Refrigerant Handling for Tight Spaces\u003c\/h4\u003e\u003cp\u003eThe 90289 shut-off valve brings EPA compliance to tight-space high-pressure applications. The 90-degree design solves clearance problems whilst the needle valve provides precise control and positive shut-off. By preventing refrigerant venting during hose connection and disconnection, you protect the environment, reduce refrigerant waste, and work safely — even in the most confined spaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e90° design for tight spaces. EPA\/SAE\/UL compliant. Professional high-pressure refrigerant containment.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Mastercool","offers":[{"title":"Default Title","offer_id":57029556535673,"sku":"90289","price":9.08,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/0158\/3481\/files\/Mastercool-90-degree-Shut-off-Valve-w-Red-Hose-1-4-1-4-Ryan-Air-Conditioning-Spares-68945170497911.jpg?v=1775889163","url":"https:\/\/www.airconspares.com\/products\/mastercool-90-degree-shut-off-valve-w-red-hose-1-4-1-4","provider":"Airconspares.com","version":"1.0","type":"link"}