Bellow Seal Valves:Gate,Globe Valve

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.
Supplier: Sangong Valve, China
Manufacturer: Shop in Wenzhou Oubei Industrial Park

Bellow seal valve is designed with bellow welded onto the bonnet and stem, so that when the stem travels drive the below expansion or decompression. It inherently eliminate the conventional design of possible stem packing leakage. SGV bellow sealed valves can achieve truly zero leakage; ideal for stringent leakage-free application like toxic and flammable services. Bellow seal valve 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.
Supplier: Sangong Flow Control Co., Limited, China
Manufacturer: Shop in Wenzhou Industrial Park
Include: ANSI Bellow Seal Valves, DIN Bellow Seal Valves, and other standard Bellow Seal Valves, Bellow Seal Gate Valve, Bellow Seal Globe Valve

Example
Gate valve with bellow seal acc.to ANSI is applicable to the cutting and connection of pipelines fluid. Stop valve with bellow seal acc.to ANSI is applicable to the cutting, switch and the adjustment of medium. Medium that is used in various industries such as petroleum, chemical industry, pharmacy, Chemical fertilizer, electric power industry etc under nominal pressure of CLASS150-900LBS and working temperature of -29~350℃
Parabolic Plug for switch and the adjustment of fluid is available.

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

Applicable Standard:
Design: AP1600、AP16D
Face to face: ASME B16.10
Flange ends: ASME B16.5
Test﹠inspection:AP1598,AP16D

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