Bellows Seal Globe Valve

Bellows Seal Globe Valve

Bellow Seal Globe Valve is a valve with a bellows to seal off the stem enclosure is an ideal choice whenever leakage to the atmosphere is intolerable due to toxicity, chemical corrosion, radioactivity, other health or ecological reasons. In addition, seal welding the body-bonnet seal makes the valve hermetically sealed. The bellows is welded to the stem and to the bottom of the bonnet.

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Specification of this Bellows Seal Globe Valve

Bellow Seal Globe Valve is a valve with a bellows to seal off the stem enclosure is an ideal choice whenever leakage to the atmosphere is intolerable due to toxicity, chemical corrosion, radioactivity, other health or ecological reasons. In addition, seal welding the body-bonnet seal makes the valve hermetically sealed. The bellows is welded to the stem and to the bottom of the bonnet.

It is applicable to the cutting and connection of pipelines medium that are used in various industries such as flue gas uerification plant, gas supply pipeline, vacuum facilities, ammonia facilities, hot water, colding & freezing system, heating technology, steam system, chemical industry, pharmacy, chemical fertilizer, electric power industry etc. The nominal pressure can be fromm 1.0 Mpa to 16.0MPa and the working temperature can be reached to 350 Celsius degree.

Bellow Seal Globe Valve adopts internal bellows structure. The lower end of the stainless steel bellows welded to the stem to prevent stem from fluid erosion. The other end constitutes a static seal between the valve body and bonnet. Double seal design can make sure the zero leakage. When bellows do not work, the stem packing will prevent from leak. It is suitable to steam, flammable, explosive, conducting oil, high purity, toxic and other media.

Parameters of this Bellows Seal Globe Valve

Features

This product has logical structure, reliable seal, excellent performance and nice design.
The seal surface is build-up welding with Co hard alloy, which is attrition-resistant, corrosion-resistant, has good friction resistant and long life.
The stem is quenched and tempered, and its surface is treated by nitrogen treatment, thus it is has good corrosion resistant and friction resistant.
It has double seal capability, thus is more reliable.
The stem may show the position of lift, thus it is clearer.
The part material, flange and butt weld end dimension may be selected according to current operating conditions and users' requirement, so that meet the requirements of various engineering.
Structural formation: BB-BG-OS&Y
Driving manner: Hand-operated, Electric-actuated

Specifications

Design: AP1600,AP16D

Face to face: ASME B16.10

Flange ends: ASME B16.5

Test&inspection:AP1598,AP16D

Size:1/2" - 18" or DN12 - DN450

Pressure: Class150 - Class1500 or PN16 - PN250

Material: WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF3M, CF8M, etc.

Pictures of this Bellows Seal Globe Valve

 

Product advantage of this Bellows Seal Globe Valve
 
Our Bellow Seal Globe Valve are designed and manufactured to provide maximum service life and dependability. All Bellow Seal Globe Valve are full ported and meet or exceed the design requirements of industrial standard. Valves are available in a complete range of body/bonnet materials and trims.
1. Range of Materials: Standard body/bonnet materials include ten grades of carbon, low alloy and stainless steels. For special applications they can be supplied in other grades of alloy and stainless steel. There’s a full range of trim materials to match any service. Optional packing and gasket materials are available for a full range of service conditions.
2. Easy Maintenance: the valve can be matched up with the service conditions, thus enhancing operability and lessening the possibility of binding.
3. Easy Operation: the valves easily accessible for repair or replacement. Packing swing bolts on most valves simplify packing replacement.
4. Actuator Flexibility: All valves are available with hand-wheels, gearing, electric motor actuators or pneumatic or hydraulic cylinder actuators.
5. Longer Life: strong construction provides years of reliable service.
6. Convenient maintenance:
Convenient maintenance, simple structure of ball valve, seal ring is generally mobile, easy to remove and replace.
7. Good sealing performance by the erosion of full-time small sealing surface
8. Wide application: Wide range of applications, from small to a few millimeters, to several meters, from high vacuum to high pressure can be applied.
 

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