Bellow Seal Forged Gate Valve – Bolted/Welded/Pressure Seal Bonnet, Leak-Proof Design - TEJI

Product Details

Quantity

100
Availability (Lead Time)

4-6 Weeks
Product Location

China
Condition

New
OEM

Teji Valve Group Co., Ltd
Equipment code

CFIHOS-30000649

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Short Description

Forged steel bellow seal gate valve with advanced stem sealing for leak-proof performance. Available in bolted, welded, and pressure seal bonnet designs. Ideal for high vacuum and radioactive media applications.

Description

Bellow Seal Forged Gate Valve – Bolted/Welded/Pressure Seal Bonnet, Leak-Proof Design - TEJI

The Bellow Seal Forged Gate Valve by TEJI is designed to meet the critical demands of high-integrity sealing systems in modern industrial applications. Manufactured using forged steel and available in three robust bonnet configurations—Bolted Bonnet, Welded Bonnet, and Pressure Sealed Bonnet—this valve provides exceptional reliability and performance under high pressure and temperature conditions.

Unlike conventional packing-seal valves, this model features an integrated bellows stem seal, which ensures zero leakage from the valve stem, making it a preferred solution for nuclear, chemical, and high vacuum pipeline systems. The internal structure includes a plug-type disc with a flat or conical sealing surface, moving linearly along the pipeline axis to ensure optimal shut-off performance.

Engineered specifically for critical operations involving radioactive, toxic, or high-purity media, this forged gate valve guarantees long service life, precise actuation, and enhanced safety for both personnel and process equipment.

Specifications:

– Valve Type: Bellow Seal Forged Gate Valve
– Size Range: 1/2” to 12” (custom sizes available)
– Bonnet Types: Bolted Bonnet, Welded Bonnet, Pressure Seal Bonnet
– Pressure Rating: Class 150 to 2500LB (PN16 to PN420)
– Body Materials: ASTM A105, F11, F22, LF2, F304, F316, F316L, etc.
– Bellows Material: SS304, SS316, Inconel (optional)
– End Connections: Flanged (ASME B16.5), Butt-Welded (ASME B16.25), Socket-Welded, Threaded
– Design Standards: API 600, API 602, ASME B16.34
– Face-to-Face: ASME B16.10
– Leak Testing: API 598, EN12266
– Stem Type: Rising stem with non-rotating plug-type disc
– Sealing Design: Metal-to-metal seating with bellows-sealed stem
– Operating Temperature Range: -29°C to 600°C (based on material selection)
– Operation: Handwheel, Gear, Electric, Pneumatic

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Technical Details

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