{"product_id":"parker-nv311p-4-4-straight-needle-valve-1-4-in-brass","title":"Parker NV311P-4-4 Straight Needle Valve 1\/4 in Brass","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PARKER NV311P-4-4 is a straight-pattern needle valve designed for precise flow control in fluid and gas systems. It features a brass body and brass needle, with a Poly-Tite compression inlet connecting to a 1\/4 inch male NPTF pipe end. At 1.22 inches overall length and 1.18 inches overall height, this compact valve fits in tight plumbing assemblies. It handles pressures up to 150 psi and operates across a temperature range of 0 degrees F to 250 degrees F. Licensed plumbers and HVAC technicians typically install this valve where fine-tuned shutoff or throttling is needed in a small-diameter line.\u003c\/p\u003e\u003cp\u003eThis valve suits residential and light commercial plumbing, refrigeration, and HVAC applications where a 1\/4 inch line requires throttling or isolation. The Poly-Tite end accepts 1\/4 inch OD tubing without soldering, making it a practical choice for service connections, instrument lines, and refrigerant or fluid sampling points. The NPTF male pipe end threads directly into standard fittings and manifolds.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eStraight valve body for in-line installation in 1\/4 inch pipe systems\u003c\/li\u003e\n\u003cli\u003ePoly-Tite compression inlet accepts 1\/4 inch OD tubing without solder\u003c\/li\u003e\n\u003cli\u003eBrass body and brass needle for corrosion resistance in fluid service\u003c\/li\u003e\n\u003cli\u003eRated to 150 psi maximum working pressure\u003c\/li\u003e\n\u003cli\u003eWide temperature range: 0 degrees F to 250 degrees F\u003c\/li\u003e\n\u003cli\u003e1\/4 inch NPTF male pipe outlet threads into standard fittings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or service fitting for 1\/4 inch Poly-Tite to male NPTF pipe needle valve applications in plumbing, HVAC, and refrigeration systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA licensed plumber or HVAC technician should install this valve. Depressurize and drain the line completely before removing any existing valve or fitting. Apply appropriate thread sealant to the NPTF male pipe threads per the applicable plumbing or mechanical code. Do not overtighten the Poly-Tite compression nut; seat the tubing fully before tightening to manufacturer guidance for compression fittings.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle\u003c\/strong\u003e: Straight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Size\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Connection\u003c\/strong\u003e: Poly-Tite to Male Pipe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: NPTF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube Outside Diameter\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 150 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Working Temperature\u003c\/strong\u003e: 0 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Temperature\u003c\/strong\u003e: 250 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Material\u003c\/strong\u003e: Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeedle Material\u003c\/strong\u003e: Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.22 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Height\u003c\/strong\u003e: 1.18 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: PARKER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: NV311P-4-4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PARKER","offers":[{"title":"Default Title","offer_id":51544068849970,"sku":"NV311P-4-4","price":68.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/060d3bf5d62a87bb767f6569709dafd6_f9511436-d9ba-4e15-924e-77f46d56a3e9.jpg?v=1785923605","url":"https:\/\/voomisupply.com\/products\/parker-nv311p-4-4-straight-needle-valve-1-4-in-brass","provider":"Voomi Supply","version":"1.0","type":"link"}