{"product_id":"mcmaster-4784k34-high-pressure-gradual-on-off-valve-pressure-class-800-steel-standard-port-3-4-npt-female","title":"McMaster 4784K34 High-Pressure Gradual On\/Off Valve, Pressure Class 800, Steel, Standard Port, 3\/4 NPT Female","description":"\u003cp\u003eChemical compatibility must be determined by the customer based on the conditions in which the product is being used, including the presence of other chemicals, temperature, and consistency.\u003c\/p\u003e\u003cp\u003eDesigned for use in refineries and other demanding environments, these valves have a durable body that can withstand nearly twice the pressure of other gradual on\/off valves. Also known as gate valves, they gradually open and close with multiple turns of the wheel handle to prevent system damage from suddenly starting and stopping flow.\u003c\/p\u003e\u003cp\u003eThese valves have a rising stem that lifts the handle as the valve opens and lowers as the valve closes. At a glance, you can see if flow is open or closed. The stem is isolated from what's flowing through your line, giving these valves a longer lifespan than valves with a nonrising stem. Their flanged stem housing, also known as a bolted bonnet, bolts in place to make them easy to take apart for maintenance and repairs. However, the flanged stem housing makes these valves heavier and larger than valves with threaded or welded stem housings.\u003c\/p\u003e\u003cp\u003eStandard-port valves slightly restrict flow.\u003c\/p\u003e\u003cp\u003eFlow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValve Function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOn\/Off\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValve Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActuation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eManual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValve Operation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHandle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHandle Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWheel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHandle Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePort Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShape\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStraight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThreaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePipe Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGender\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFemale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow Coefficient (Cv)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePressure Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1975 psi @ 100° F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Steam Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1100 psi @ 800° F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20° to 800° F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBody Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGate Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePacking Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGraphite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnd-to-End Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 9\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 7\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStem Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRising\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeal Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePacking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecifications Met\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAmerican Petroleum Institute Standard 602, ASTM A105N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFor Use With\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWater, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChemical Resistance (Excellent)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWater, Oil, Air, Argon, Helium, Krypton, Neon, Xenon, Steam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarning Message\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChemical compatibility must be determined by the customer based on the conditions in which the product is being used, including the presence of other chemicals, temperature, and consistency.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoHS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eREACH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eREACH (EC 1907\/2006) (11\/07\/2024, 242 SVHC) Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDFARS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSpecialty Metals COTS-Exempt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eItaly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSchedule B\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e848180.3055\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eECCN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEAR99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"McMaster-Carr","offers":[{"title":"Default Title","offer_id":53482905403689,"sku":"KV4784K34","price":190.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/3809\/4121\/files\/4784K34_b4646f85-058a-43cc-88ba-4e2d69a5afc1_3x_1686249493.png?v=1788495111","url":"https:\/\/www.kvmtools.com\/products\/mcmaster-4784k34-high-pressure-gradual-on-off-valve-pressure-class-800-steel-standard-port-3-4-npt-female","provider":"KVM Tools Inc.","version":"1.0","type":"link"}