RSPV Orbit Plug Valve
 

Description

Design standard :API 6D

Product scope :

  • 1.Pressure scope :CLASS 150Lb~900Lb
  • 2.Nominal diameter : NPS 2~36″
  • 3.Body material:A105､LF2､F304､F316､F304L､F316L､F51,WCB､LCB､WCC､CF8､CF8M､CF3､CF3M､A890 4A etc.
  • 4.End connection :RF RTJ BW
  • 5.Drive device: Lever, Gear box, Electric, Pneumatic, hydraulic device, Pneumatic-hydraulic device；

BODY DESIGN: Forged bolted two-piece and three-piece
SEAT DESIGN: Soft or metal seated with Hardfacing on ball and seats; Self relieving seats; Double piston seats; Combination seats; Interchangeable seats

Description

RSPV Orbit Plug Valve

STRUCTURAL FEATURES

1. In the valve's opening/closing process, there is no contact between the sealing surfaces of the valve body and the vane, so the sealing surfaces suffer neither friction nor wear, contributing to the valve's long service life and small opening/ closing torque;

2. For the valve's maintenance, there is no need to remove the valve from the pipeline but just remove its bottom cover to replace the vane pair, thus very easy for the maintenance;

3. The valve's body and plug are reduced-bore or full-bore so that the medium can flow through the valve without any flow resistance, and it's also possible to clean the pipeline with pigging to overcome the shortcomings of the reduced bore valve;

4. The cavity of the full-bore/reduced-bore general valve is plated with hard chrome and the sealing area is hard and smooth;

5. The elastic seal on the vane is made of the fluorine rubber and molded and formed in a groove of the vane surface. The fireproof metal-to-metal seal is used as the backing of the elastic seal;

6. The valve is provided with an automatic bleed device [optional] which can prevent the abnormal pressure rise of the valve cavity and check the valve's effect after the valve is completely closed;

7. The valve's opening/closing indicator is in sync with the opening/closing position and can accurately display the gear drive full-bore general valve's opening/dosing status.

 

Description

Design standard :API 6D

Product scope :

  • 1.Pressure scope :CLASS 150Lb~900Lb
  • 2.Nominal diameter : NPS 2~36″
  • 3.Body material:A105､LF2､F304､F316､F304L､F316L､F51,WCB､LCB､WCC､CF8､CF8M､CF3､CF3M､A890 4A etc.
  • 4.End connection :RF RTJ BW
  • 5.Drive device: Lever, Gear box, Electric, Pneumatic, hydraulic device, Pneumatic-hydraulic device；
 

Operation principle of general valve

RSBV Orbit Plug Valve, When the valve is fully opened, the channel of plug is in alignment with the channel of valve body, which can ensure ideal and lowest decrease on pressure.

When the hand wheel is turned, the plug will rotate toward the closing direction and at the same time draft the rotation of valve disc by 90 degree; when the hand wheel is turned further on,the plug will be pressed down,and make the valve disc open to two sides, so that the valve disc will be in firm contact with the valve seat and close the valve.

When the hand wheel is turned inversely, first of all the plug will move upward,and the valve disc and valve seat will be separated; if the hand wheel is turned further on, till the valve disc is turned by 90 degree driven by the plug and finally the channel of plug will be in alignment with the channel of valve body, so that the valve is fully opened.

The advantage of this type of valve is that, during the opening and closing of valve, the valve disc and valve seat is separated and there is no friction and thus sealing face has no abrasion in the process; at the same time, soft seal is applied for sealing, so that there will be no leakage in the process of closing.

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