Cast Steel Floating Ball Valve

Principle of the cast steel floating ball valve: This kind of ball valve has a floating ball supported by two valve seats. Under the medium pressure effect, a certain displacement can be generated by the ball itself so as to be pressed onto the seat seal ring at the outlet, guaranteeing tightness at the outlet.

 

The floating ball valve is mainly divided into such two structures as the single-body type and double-body type float ball valve structures

The ball valve are designed in accordance with ISO17292、API 608、BS 5351、GB/T 12237;

Simple structure with good tightness and small torque;

Have reduce bore type and full bore type with the minimum flow resistance (zero actually);

Low emission packing;

Fire safe, anti-static and anti-blowout stem design;

Optional locking device

Optional ISO 5211 top flange

NutA194 2H
BoltA193-B7
BonnetA216 WCB
Studgraphite/PTFE
Body MaterialA216 WCB
Material of Valve SeatRPTFE
BallA182-F304
Stem 
Spring304
Stem bearingPTFE
Packinggraphite/PTFE
Packing glandA216 WCB
Spring washer60Si2Mn
ScrewA193-B7
Stopper plate1025+Zinc
Back stop65Mn
LeverA216 WCB
Washer304

 

Connection

Flange

Pressure Rating

150~1500

Valve Size

0.5~8

State of Ball

Flange

Medium

150~1500

Actuator

0.5~8

Application Fields

General Industrial/Pulp and Paper

Standard Criteria

ASME/ANSI/API

Fire resistance test

API 607/API 6FA

Connection Standard

ASME B 16.5

Test Standard

API 598

TempPressure

ASME B 16.34-2004

Design Standard

API 608/ASME B 16.34-2004/BS 5351

Face to Face

ASME B 16.10