ball valve

Product Description

Product description
API 6D high performance pipeline ball valve is Raymond (RMD) high-tech products, as switch control equipment, it is mainly used in natural gas, oil, gas, liquefied natural gas pipeline transmission system and other industries, its anti-sulfur products containing hydrogen sulphide, impurities and high corrosion are suitable for the long-distance natural gas pipeline.
Design Features
Trunnion ball
With trunnioned ball, the floating seat moves in axial direction.Torque can be effectively lowered when the medium pressure transfers to the Teflon bearing by the valve body.
With no pressure or low pressure, the spring shall push the seat, which makes the V seal ring cling to the body, enforcing reliable seal.With the increase of medium pressure, the seat shall, under the thrust force generated from the medium, compact closely with the ball together.

Full welded
The design and manufacturing design is according to ASME B*6.*4 and ASME BPVC.

Spherial body
The body is of single straight weld body, which makes the structure more compacted, greater strength and rigidity.

Sperated ball and stem
Separated ball and stem design makes the pressure of medium to the ball minimize the impact of the stem and minimize the torque of the ball valve.

Stem key limit device
Pinpoint the location of valve status, to ensure the valve for switch position, and fundamental to prevent the misuse.

Anti-static design
Anti-static spring design allows the valve to have good electrical conductivity in any case.

Seat grease injection valve
It is used to repar the seal surface in case of emergency

Floating seat
Precise seat design ensures full seal, generating lowest torque under zero and full differential pressure.


Trunnioned plate structure
Upper and lower trunnioned plate structure is used. Pressure of medium to the ball shall pass on left and right ball by trunnioend plate. That makes the stem only bear the torque under the open and close condition of ball valve not that of medium to ball. This structure makes ball valve easy in opening, closing and operating.


External multiple seal
Left and right body and stem sleeve are weld connection. This makes it impossible for medium to leak from the body. The stem is double seal in design. The secondary seal is of fire safe material, which makes the stem seal reliable and no leakage in case of fire

Standards Applied