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Metal seal ball valve

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China

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ball valve

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Raymond Valve Manufacturing Co.ltd

China

Free Member

Contact Person Mr. Hubery

Yanmi Road, Beijing, Beijing

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Product Specification

Product Description

Fire-proof Structure Design
When fire happens, the metal to metal assistant seal structure can control the bleed effectively after the O ring on the seat, stem and flange are broken. For the fire-proof trunnion ball valve, our structure desion is according to API**7, API6 Fa, BS***5 and JB/T ***9,etc.

Cavity atomatic pressure relief device
When the cavity pressure rises because of the gasification of the medium in the cavity along with the temperature increased, the medium can push the seat to relief the pressure to ensure the safety of the valve.

Double seal design before and after the ball
For the special work condition and customer requirements, the trunnion ball valve adopts double seal structure design before and after the ball, so that if one seal broken, the valve can still work, the seal reliability is increased.
For the seat before the ball, there is a piston effect because the area difference of D1 and D2, Effected by medium pressure difference before and after the seat, and spring strength, the seat before the ball push the ball hardly, and the seal strength will be increased along with the pressure difference.
For the seat after the ball, there is a piston effect because the area difference of D2 and D3, Effected by medium pressure difference before and after the seat, and spring strength, the seat after the ball push the ball hardly, and the seal strength will be increased along with the pressure difference.

Stem Blow-out Proof Structure Design
Stem adopts blow-out proof structure design. Fasten the stem by snapring to ensure the stem do not blow out by the medium,even the cavity pressure rises.

Natural anti-atatic structure
Metal to metal sealed ball valve with its body s eat, ball, other metal parts , and so forth, closely contact with each other , having naturally formed a static electricity passage. In this respect, there is no need to provide special anti-static device.

Actuator device Plate
Our trunnion ball valve has the actuator device yoke plate to install the gear, pneumatic, electric, hydraulic and pneumatic-hydraulic linked actuator easily.

Anti-corrosion
There is a space when design the valve thickness, the stem, ball, seat and bonnet are plated according to ASTM B and B **6. Moreover, we have more anti-corrosion metrial to supply for customers. The valve surface is painted by International Co, to meet various environmental condition.

Anti-sulphur Stressing Cracking
Raymond anti-sulphur ball valve series, all the material contacting the medium are according to NACE Mr***5, controlled and inspected strictly during the production procedure, to guarantee the products meet the standard and anti-sulphureinvironmental condition technical requirements.

Design Standard：API **8,API 6D,ASME B*6.*4

Size：1/2"—*8"

Rating：Class**0—Class***0

Temperature：**9°C～**0°C

Face-Face Dimension：ASME B*6.*0,API 6D

End Conection：Welded、Flange

Operation：Hand wheel、Worm gear、Pneumatic、Hydraulic、Electric、

Gas over Hydraulic、Lectro over Hydraulic

Inspection & Test Standard：API**8,API 6D

Medium：Coal Water Slurry,Dark waters ,Ash water, and so on

Country:	China
Model No:	-
FOB Price:	(Negotiable) Get Latest Price
Place of Origin:	-
Price for Minimum Order:	-
Minimum Order Quantity:	-
Packaging Detail:	-
Delivery Time:	-
Supplying Ability:	-
Payment Type:	-
Product Group :	ball valve