Product Name: 1-13/16"--4-1/16" Choke Valves for Wellhead with API 6A Model NO.: api 6a Type: Orifice/Adjustable/Positive Tc: Lu Pr: 1 Trademark: JELIN Transport Package: Wooden Case Box Specification: API 6A Origin: China HS Code: 8481804090 Product Description Choke valvesChoke valve falls into positive choke valve, needle choke valve, plunger type choke valve, cage choke valve and orifice plate choke valve. The materials of the body and components of choke valve are completely in conformity with API 6A and NACE MR-0175 Standard Specifications, and it is widely used for onshore and offshore petroleum drilling. Our choke valves are supplied in two types: Positive and Adjustable.Structural features:With opening indicatorStructural design based on relief valveStructural design based on plane thrust bearingmetal-to-metal seal designLip packing sealing valve stem made of special materialsMade of high wear-resistant materials, so that choke valve trim and grease fitting can endure abrasion and corrosion effectivelyDesign and manufacturing is in strict accordance with API Spec 6A, ANSI and NACE MR-0175 Standard.Inside nominal diameter1 13/16" ~4 1/16"Specification LevelPSL3, PSL3GWorking pressure2000~15000psiPerformance levelPR1, , PR2Opening1" , 1 13/16" ,2" , 2 1/2"Product standardAPI SPEC 6AMaterial ClassAA, BB, CC, DD,EE, FF, HHWorking mediumPetroleum, natural gas, kill fluid and rinsingTemperature ClassK, L, P, R, S, T, UConnection typeFlange and union