Buried Fully Welded Ball Valve – TEJI, DN200–DN1400, CL150–CL600, Underground Installation

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

Buried fully welded ball valve by TEJI designed for underground service. Offered in DN200–DN1400, CL150–CL600, with full or reduced bore. Corrosion-resistant, anti-sulfide, extended stem, ideal for gas, heating, and chemical applications.

Description

Buried Fully Welded Ball Valve – TEJI, DN200–DN1400, CL150–CL600, Underground Installation

The Buried Fully Welded Ball Valve from TEJI is engineered for underground installation in critical infrastructure systems such as natural gas pipelines, urban heating networks, and chemical processing lines. With a fully welded body and extended stem, this valve ensures zero external leakage, exceptional durability, and protection against sulfide stress cracking in harsh subsurface conditions.

Available in DN200 to DN1400 (2" to 24") and pressure ratings from PN16 to PN64 (CL150 to CL600), TEJI’s buried ball valves can be supplied in full or reduced bore configurations. Valve body materials include A105, F304, F316, LF2, and more, with seat options like PTFE, Nylon, or PEEK for optimal compatibility with operating conditions.

These valves are ideal for city gas distribution, district heating trunk and branch lines, heat exchange systems, steel plant fluid and exhaust systems, and chemical pipeline networks. Designed for direct welding into transition piping, their compact structure eliminates flanged joints and the need for valve chambers, reducing both space and maintenance requirements.

With proven quality and international customer trust, TEJI’s buried welded valves offer superior flow control, corrosion resistance, and reliability under challenging conditions.

Specifications:

– Valve Type: Buried fully welded ball valve
– Nominal Size: DN200 to DN1400 (2” to 24”)
– Pressure Class: PN16 to PN64 (CL150 to CL600)
– Flow Type: Reduced Bore or Full Bore
– Body Materials: A105, LF2, F304, F316, others on request
– Seat Materials: PTFE, Nylon, PEEK
– Temperature Range: -29°C to 200°C (-20°F to 392°F)
– Operation: Gear, Pneumatic, Electric
– End Connections: Butt Weld
– Standards Compliance: API 6D, ISO 14313, ASME B16.34
– Stem: Extended stem for underground access
– Cavity Relief: Automatic cavity pressure relief
– Fire Safety: Fire-safe design (upon request)
– Corrosion Resistance: Sulfide stress cracking-resistant materials
– Testing Standards: API 598, API 6D pressure test
– Options: Anti-static, fire-safe, emergency sealant injection, stem extension for deeper burial

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Technical Details

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