TEJI Pressure Seal Bonnet Gate Valve – Forged Steel, High Pressure, Spiral Wound/Pressure Seal Design

Product Details

Quantity

100
Availability (Lead Time)

4-6 Weeks
Product Location

China
Condition
OEM

Teji Valve Group Co., Ltd
Equipment code

CFIHOS-30000649

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Short Description

TEJI pressure seal bonnet gate valve with forged steel body and advanced self-sealing pressure seal design. Engineered for high-pressure service with versatile bonnet options and precise fluid control for steam, corrosive, and radioactive media.

Description

Pressure Seal Bonnet Gate Valve (TEJI) – Forged Steel, High Pressure, Spiral Wound/Pressure Seal Design

The Pressure Seal Bonnet Gate Valve from TEJI is designed for critical high-pressure applications requiring secure sealing and robust construction. Available in forged steel with three distinct bonnet configurations—Bolted, Welded, and Pressure Seal—the valve provides flexible performance to suit a wide range of industrial systems.

The pressure seal bonnet design utilizes internal system pressure to enhance sealing by compressing the bonnet gasket tighter against the valve body as pressure increases, delivering exceptional leak prevention in extreme service conditions. In contrast, the bolted bonnet relies on a spiral wound gasket and mechanical compression, while the welded bonnet ensures a permanent seal with full weld integrity.

The sealing surface may be flat or pyramidal, and the valve disc travels linearly along the seat axis. Operation is available with rising (lifting) stem or non-rising (rotating) stem designs, allowing precise and reliable control across various process fluids such as air, water, steam, corrosive media, mud, oil, liquid metals, and radioactive fluids.

Specifications:

– Valve Type: Pressure Seal Bonnet Gate Valve
– Bonnet Types: Bolted Bonnet (spiral wound gasket), Welded Bonnet, Pressure Seal Bonnet (self-energizing seal)
– Size Range: Customizable (typically 2" to 24")
– Pressure Rating: High pressure (CL600 to CL2500, or PN100 to PN420)
– Body Material: Forged Steel (A105, F22, F304, F316, LF2, etc.)
– Seat Design: Flat or pyramidal sealing surface
– Stem Type: Rising stem (OS&Y) or non-rising stem (rotating)
– End Connection: Flanged (ASME B16.5), Butt Welded (ASME B16.25)
– Design Standards: API 600, API 602, ASME B16.34
– Testing Standards: API 598
– Temperature Range: -29°C to 600°C (based on material selection)
– Media Compatibility: Air, steam, water, corrosive fluids, sludge, oil, molten metal, radioactive fluids
– Applications: Power generation, chemical processing, oil & gas, nuclear and heavy industry
– Operation: Handwheel, Gear, Electric, Pneumatic (on request)

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Technical Details

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