1) Made from forging or specially smelted low alloy steel
2) Wellhead assembly

1,Design and manufacture are carried out in accordance with Standard SY5156 and API Spec.6A;
2,Non-rising stem gate valve with switch indicator;
3,To ensure wellhead safety, all Pressurized parts and flanges on the wellhead equipment are made of high grade alloy steel by press forging which are also subjest to non-destructive tets and heat treatment, achieving excellent sulfide-resistant performance;
4,Special lubricated device used to ensure smooth lubrication between ram and valve seat, and also prevent sealant from losing;
5,Reliable in performance and durable in usage in usage due to its small on-offtorque

Rated pressure

2000 , 3000 , 5000, 10000, 15000, 20000 (Psi )

Grading norms

PSL1 , PSL2 , PSL3 , PSL4

Performance grade

PR1 , PR2

temperature grade

K (-60~ 82 ºC), L (-46~ 82 ºC), P(-29~ 82 ºC), R (room temperate), S (-18~ 66 ºC), T (-18~ 82ºC), U (-18~ 121 ºC), V (2~ 121 ºC), 

material grade

AA (general use) BB (general use) CC (general use) DD(acid environment) EE (acid environment) FF(acid environment)

Applicable medium

crude oil, water, natural gas, mud , etc.