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Industrial Manual/Pneumatic/Electric Stainless Steel Floating Ball Valve Water/Oil/Gas China factory

Short Description:

NORTECH is one of the leading China Electric floating ball valve Manufacturer & Supplier.

Electric Floating ball valves,nominal diameter 1/2”~8”

Connection End:ASME B 16.5/ASME B 16.47/ASME B 16.25/EN1092/JIS B2220/GOST12815

Manual operation,Pneumatic operation,Electric operation,or Free stem with ISO5211 plat form foractuators.

API6D,Fire proof API607,ATEX Certified

Pressure Rating:CLASS 150~600

Design Standard:ASME B 16.34/API 6D /API 608/BS EN ISO17292/ISO14313

Face To Face Dimensions:ASME B 16.10/API 6D/EN558

Product Detail

Product Tags

What's Electric floating ball valve ?

A Floating Ball Valve uses a rotating ball and a stem that provide on/off flow control.

The Electric  floating ball valve utilize natural line pressure to press and seal the ball against the downstream seat. The line pressure is exposed to a greater surface area - the entire upstream face of the ball, which is an area equal to the actual pipe size.

When the valve is positioned where the bore is aligned in the same direction as the pipeline, it is in the open position, and fluid can pass downstream. NORTECH Floating ball valve is a new product manufactured by transformation the common valve and adoption of the up-to-date international standard.  

A Electric  floating ball valve is a valve with its ball floating (not fixed by a trunnion) inside the valve body, it drifts toward to the downstream side and tightly pushes against the seat under the medium pressure to ensure sealing reliability. The floating ball valve has simple structure, good sealing performance but the seat material is required to withstand the workload since the sealing pressure is bared by the seat ring. Due to unavailability of high performance seat material, floating ball valve is mainly used in middle or low pressure application.


Main features of NORTECH Electric floating ball valve

1. Special Seat Design

we adopts the design of flexible seal ring structure for the floating ball valve. When the medium pressure is low,the contact area of seal ring and ball is small. It will reduce friction and operating torque and ensure the tightness in the same time.When the medium pressure is increased,the contact  area of seal ring and ball becomes bigger along with the elastic deformation of  seal ring, so the seal ring can endure higher medium impact without being damaged.

2. Fireproof Structure Design

In case of fire during the use of valve, the seat ring made of PTFE Or other non-metal materials will be decomposed or damaged under high temperature and it will result in serious leakage of fluid,it's quite dangerous for the inflammable or explosive medium.The fireproof seal ring is set between ball and seat so that after the valve seat is burnt,the medium will push the ball rapidly towards the down stream metal seal ring to form the auxiliary metal to metal sealing structure which can effectively control valve leakage.In addition,the middle flange sealing gasket,which can ensure sealing even under high temperature .

3. Anti-static Structure

The ball valve is designed with the anti- static structure and the static electricity discharge device to directly form a static channel between the ball and body through the stem so as to discharge the static electricity produced of friction of ball and seat,avoiding fire or explosion that may be caused by static sparkle and ensuring system safety.

Fireproof Structure Design of middle flange

fireproof design middle flange

Fireproof Structure Design of Stem(after burning)

fireproof stem design after fire

4. Reliable Sealing of Valve Stem

The stem is designed with the shoulder at its bottom so that is will not be blown out by the medium even under the extreme condition  such as abnormal pressure rise inside the valve cavity,failure of gland plate and etc.In addition,to avoid leakage after the stem packing is burnt in case of fire,the thrust bearing  is set at the place where the stem shoulder and body contact to form a reverse sealing seat. The sealing force of the reverse seal will increase according to the increase of medium pressure,so as to ensure reliable stem sealing under various  pressure,prevent leakage and avoid accident spreading.T

Fireproof Structure Design of Seat

fireproof seat design

Fireproof Structure Design of Stem(normal use)

fireproof stem design normal use
anti-static 01

Anti-Static structure design of ball valve with DN32 and above

anti-static 02

Anti-Static structure design of ball valve smaller than DN32

stem blow out proof01

bottom mounted stem will not blown out under medium pressure

stem blow out proof02

top mounted stem may blow out under medium pressure

packing 01

Before the packing is pressed

packing 02

After the packing is pressed

packing 03

the Spring loaded packing mechanism

lock 02

Technical Specifications of Electric floating ball valve

Nominal diameter


Connection Type

Raised face flange

Design standard

API 608

Body material

Stainless steel CF8/CF8M/CF3/CF3M

Ball material

Stainless steel 304/316/304L/316L

Seat material


Working temperature

Up to 120°C for PTFE

ISO mounting pad


Inspection standard


Type of operation

Handle lever/Manual gearbox/Pneumatic actuator/Electric actuator

Product Show:

floating ball valve 03
floating ball valve 04
floating ball valve 02
floating ball valve 05

Application of Electric floating ball valve

Our Electric floating Ball Valve can be widely utilized in petrochemical, chemical,steel,paper making, pharmaceutical and long-distance transport pipes.etc,nearly all the field.

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