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Top Entry Floating Ball Valve

Compression spring is applied to the ball, the role of the compression spring is to apply pre-tightening force on the ball, so that the sealing surface of the valve seat is in close contact under any circumstances, and the sealing performance is good. The wedge Angle of the contact surface between the valve seat and the valve body is 10°,the seat is self-locking,In the direction of the line, when the valve seat is subjected to greater pressure, the valve seat will not produce any displacement. Therefore, the valve of this structure has both the characteristics of a gate valve and the advantages of a ball valve. During maintenance and inspection, it is found that the valve body and valve seat are prone to leakage. If the pre-tightening force of the spring is increased, the closing torque of the ball valve is bound to increase. In order not to increase the closing torque of the ball valve, a rubber O-ring is added to the back of the sealing surface of the valve seat to solve the problem of leakage on the back of the sealing surface of the valve seat.

Description:      

Compression spring is applied to the ball,  the role of the compression spring is to apply pre-tightening force on the ball, so that the sealing surface of the valve seat is in close contact under any circumstances, and the sealing performance is good. The wedge Angle of the contact surface between the valve seat and the valve body is 10°,the seat is self-locking,In the direction of the line, when the valve seat is subjected to greater pressure, the valve seat will not produce any displacement. Therefore, the valve of this structure has both the characteristics of a gate valve and the advantages of a ball valve. During maintenance and inspection, it is found that the valve body and valve seat are prone to leakage. If the pre-tightening force of the spring is increased, the closing torque of the ball valve is bound to increase. In order not to increase the closing torque of the ball valve, a rubber O-ring is added to the back of the sealing surface of the valve seat to solve the problem of leakage on the back of the sealing surface of the valve seat.


     

Structure: Top Entry Type

Size: 1/2”~8” (15mm~200mm)

Class: 150LB~900LB

Operator: Lever, Gear, Electric, Pneumatic etc.


     

Standard:

Design: ASME B16.34, API6D

Pressure and Temp. Range: ASME B16.34

Inspection and Test: API598

Flange Ends: ASME B16.5

Butt Weld Ends: ASME B16.25,

Socket Weld Ends: ASME B16.11

Screwed Ends: ASME B1.20.1

Fire Safe: API 607,

Anti Static: API 608


     

Main Materials:

Body Material: WCB, CF8, CF3, CF8M, CF3M, A105(N), LF2, LF3, F304, F316, F321, F304L, F316L, Inconel, Monel etc.

Ball Material: A105+ENP, F6a, F304, F316, F304L, F316L, F51 etc.

Stem Material: 17-4Ph, XM-19, F6a, F304, F316, F51 etc.

Seat Material: PTFE, RPTFE, PEEK, NYLON, DEVLON, etc.


     


     

Design Feature:

One Piece Body 

Full Bore or Reduced Bore

Bolted Bonnet

Soft Seated or Metal Seated

Anti Blowout Stem

Low Torque in Operation

Easy to maintain


     

FAQ:

Q1: Are you a manufacturer or distributor?

A1: We are a professional manufacturer. We design, manufacture, test and sell industry valves, including ball valves, gate valves, globe valves, check valves, butterfly valves, and so on.


     

Q2: What kind of certificates do you have?

A2: We have API 6D, API 600, API602, API 607, PED/ CE, ISO9001, ISO14001, ISO45001, ISO15848-1, EAC Certificates...


     

Q3: Can you accept OEM?

A3: If the customer authorizes us, we can OEM accordingly.


     

Q4: What about delivery way?

A4: We will choose the delivery way according to the package size, or as you required. Small parcel: by international express, like DHL, FedEx, UPS or TNT Courier. Big cargo: by air or by sea.


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