Buried Fully Welded Ball Valve

Quantity

100
Product Location

China
Supplier

Teji Valve Group Co., Ltd

+ View More items
Availability (Lead Time)

4-6 Weeks
Condition

New
Chat with Seller

Description

TEJI's fully welded ball valves are engineered for robust performance in mid-stream gas transmission and distribution pipelines, particularly suitable for underground and buried installations. The design features a fixed ball and floating seat rings that move freely along the valve axis, ensuring reliable sealing under varying pressures.

Specifications:

Nominal Size: DN200~DN1400 (8"~56")
Flow Type: Reduce Bore or Full Bore
Materials: A105, F304, F316, LF2, etc.
Seat Materials: PTFE, Nylon, PEEK, etc.
Working Temperature: -29℃~200℃ (-20℉~329℉)
Operating Options: Gear, Pneumatic, Electric

Features and Benefits:

Upstream Sealing: Utilizes Belleville springs to maintain seat-to-ball contact at low pressures, while higher pressures enhance sealing as fluid pressure pushes seat rings against the ball.

Automatic Pressure Relief: Internal relief of excess body cavity pressure prevents dangerous pressure build-up, automatically releasing pressure exceeding downstream line pressure.

Rotating Seat Rings: Exclusive rotating seat feature (standard in sizes 14” and larger) evenly distributes wear by rotating 15 degrees with each valve closure, enhancing seat life and preventing sediment build-up.

Stem Seals: Delta seals and PTFE lip seals in the upper stem area ensure low-friction, non-deteriorating performance. Sealant injection provision maintains secondary seal integrity.

Trunnion-Supported Ball: Enables low-torque operation across all sizes and pressure ratings, with high-strength forged stems in PTFE impregnated stainless steel bearings for smooth, efficient operation.

Double Block-and-Bleed: Provides reliable isolation with both upstream and downstream sides of the ball blocked off from the body cavity, facilitating integrity testing and secondary seal restoration.

Applications:

TEJI's fully welded ball valves are ideal for critical applications where tight shutoff, low torque operation, and long-term reliability are essential, ensuring safety and performance in demanding environments.

Supporting Documents

General Terms

ReflowX and the seller retain the right to evaluate and approve offers.
Buyers should verify quantities and conditions upon delivery.
After successful engagement, both buyer and seller manage communication for payment terms and delivery schedule.
All parties agree to adhere to ReflowX Terms and Conditions in transactions.
Buyers can request value-added services such as pre-purchase inspections, Expediting & Delivery Services through ReflowX. Contact us!