Chinese Professional Vented Ball Valve - 2pc Forged Floating ball Valves

Chinese Professional Vented Ball Valve - 2pc Forged Floating ball Valves – 3E

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Chinese Professional Vented Ball Valve - 2pc Forged Floating ball Valves – 3E Detail:

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Product description	Floating ball valve
Model	Q41F floating ball valve
Nominal diameter	NPS 1/2～NPS 10
Operating temperature	-46℃～120℃(Soft) >=150℃(Metal)
Operating pressure	CLASS 150～CLASS 2500
Material	A105、LF2、LF1、F11、F22、F304、F316、AF51, etc.
Design standard	API 608、ISO 17292、BS 5351
Structural length	ASME B16.10
Connecting end	ASME B16.5、ASME B16.25
Test standard	API 598
Operation method/td>	Handle, gearbox, electric actuator, pneumatic actuator
Application fields	Water, petroleum and natural gas
Other remarks 1	A locking device is provided to prevent misoperation of valve.
Other remarks 2	Valve stem flyout prevention structure design, to prevent accident due to flyout of valve stem caused by abnormal pressurization in the chamber
Other remarks 3	Fireproof and antistatic design
Other remarks 4	Full bore of valve convenient for pigging, of small flow resistance and high flow capacity

The traditional packing flange design has been improved to be of two piece structure,I.E.,Being as a gland flange and gland,the latter contacts the gland with spherical surface,Thus,the gland remains vertical always,and is lined internally with a PTFE bush to prevent the galling against and friction between the stem,which can also reduce the operation troque of the valves.

Based on customers’ requirements,a packing tightening design may be employed to obtain more reliable stem packing seal,which is loaded by bevelling spring.

To prevenet the ball valve from wrong operation,the key lock with 90 deg of open and close positioning pad has been provided,which can be lockable as required.at the stem head,where the lever fixes,a flat is so designed that the valve opens with the lever in parallel to piping,and with the lever right-angled to the piping,the valve is closed,so,it is ensured that the valve indicator of open and close can never make mistake.

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