Item

Working

Pressure

MPa（psi）

Product

Specification

Level

Material

Class

Temperature

Classification

(℃)

Working medium

Thread of Casing flange

Thread of Tubing hanger

Connection Mode

Wellhead And Christmas Tree Equipment

13.8~~103.5

(2000~15000)

PSL1

PSL2

PLS3

AA

BB

CC

DD

EE

FF

-35～370

Oil, water and saturated steam,

gas

5¹/₂″

、7″

9⁵/₈″

3¹/₂ EU

2⁷/₈EU

Flange for tubing head spool;

Clamp or flange for gate valve