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Full Welded Body 1 Pieces Ball Valve Steel 20 Soft Seat For Gas

China TEKO Industry Co., Limited certification
China TEKO Industry Co., Limited certification
Dear Peter, Highly appreciate your sound service. The valves have well arrived and looks every well. Regards, Andrea

—— Mr. Andrea Arredondo

Hi, my friend. Finally we got the bidder and nice to cooperate with you.You prefession and quick reaction was the firm support for the business.

—— Mr.Hiep Le Hao



Good da, we just got the appoval from our customer. Your experiences helped a lot in the project. The final drawing is also very professional. Cheers!

—— Mr. Scott Hornick

compramos de TEKO desde 2011, continuaremos la cooperación. La calidad es buena y el precio es bueno.

—— Ing. Hugo Diaz

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Full Welded Body 1 Pieces Ball Valve Steel 20 Soft Seat For Gas

Full Welded Body 1 Pieces Ball Valve Steel 20 Soft Seat For Gas
Full Welded Body 1 Pieces Ball Valve Steel 20 Soft Seat For Gas

Large Image :  Full Welded Body 1 Pieces Ball Valve Steel 20 Soft Seat For Gas

Product Details:
Place of Origin: China
Brand Name: TEKO
Certification: CE Certificate
Model Number: QA61F
Payment & Shipping Terms:
Minimum Order Quantity: 1 pcs
Price: By Negotiation
Packaging Details: By wooden cases
Delivery Time: 35 days after deposit
Payment Terms: L/C
Supply Ability: 100 tons per month
Detailed Product Description
Material: WCB, Forged Steel End: BW End
Pressure Rating: High Pressure Operation: Manual, Electric
Body: All Welded Extened Stem: Available
High Light:

BS 5351 1 Piece Ball Valve


API 6D 1 Piece Ball Valve

Steel 20 High Pressure Soft Seat Full Welded Body 1 Pieces Ball Valve For Gas


Specification Details
Design Standard API 6D, BS 5351
Pressure/Temperature Chart ASME B16.34, BS 5351
Face to face Dimension ASME B16.10 , API 6D
Fire Safety API 607, API 6FA
Testing Standard API 598
Flange Details ASME B16.5 up to 24″
ASME B16.47 26″ and Above
Butt-Weld End Details ASME B16.25
Size Range 2″ – 48″ (DN50 – DN1200)
ASME Class 150#, 300#, 600#, 900#, 1500#, 2500#
Bore Type Full Bore, Reduced Bore
Emergency grease Injection Device Soft Sealing

Plate or Pipe steel: A3/20#/SS304/TP304/SS316/TP316,

Forged Steel: A105 / LF2 / LF3 / F316 / F304 /F316L / F51 / F55 / F6a /

Casting Steel: WCB / LCB /LCC / CF8M / CF8 / CF3M / 4A / 6A / Inconel

Ball&Stem F6a / F316 / F304 / F316L / F51 / F55 / Inconel
Seats Soft Sealing or Metal to Metal
Operation Lever, Gearbox, Pneumatic Actuator, Electric Actuator




Isolating valve for maintenance-free above- and below-ground installations in pipelines, on compressor stations and platforms.
Min. temperature range -60°C to +50°C
Standard temperature range -29°C to +50°C
Max. temperature range -29°C to +160°C


Features & advantages


Upstream Sealing At low pressure, seat-to-ball contact is maintained by Belleville springs. At higher pressures, seat contact is reinforced by line pressure.


Automatic Internal Relief of Body Pressure Relief of excess body cavity pressure is automatic, avoiding dangerous pressure buildup. Any pressure exceeding downstream line pressure by approximately 200 psi pushes the downstream seat away from the ball, allowing the pressure to relieve into the pipeline.


Rotating Seat Rings The exclusive rotating seat feature is standard in the teko fully welded ball valve sizes 14” (350 mm) and larger. Both seats rotate 15 degrees each time the valve is closed, exposing a new pinch point and evenly distributed seat wear


The pinch point is the area of the seat insert that experiences an increased velocity when the valve is seated closed and unseated open. This is where the seat seal experiences the most wear, and in most valves, where a leak path begins. By rotating the seat ring, the pinch point wear is distributed throughout the seat seal, providing an increase in seat life.


Low-torque Operation

Regardless of size or pressure rating, every teko fully welded ball valve is trunnion mounted. High-strength forged stems are located in PTFE impregnated stainless steels bearings for smooth operation. Trunnion mounted stems absorb the thrust from line pressure, preventing excess friction between the ball and seats, so even at full rated working pressure, operating torque stays low.


Double Block-and-bleed

Whether in the fully open or fully closed position, pressure on each side of the ball is blocked from the body cavity by the seat ring. The body cavity can then be bled down or drained through the body port. When you block-and-bleed a teko fully welded ball valve, the following can be accomplished:


Contact Details
TEKO Industry Co., Limited

Contact Person: sales

Tel: +8613660157288

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