Double expanding gate valve



Valve design

based on API 6D and customer requirements
based on API 6A and customer requirements

Temperature range
-150 to 662°F (-101 to 350°C)

NPS 1.13/16 –16.3/4 (DN 46-425)
NPS 2- 36 (DN 50-900)

Pressure rating

ASME 150 - ASME 2500
API 5000-API 10000

As per API 6D standard or As per API 6A standard
End connections

RF, RTJ as per B16.5 &B16.47
BW, Butt Welded as per B16.25
Hub connection
6B, 6BX as per API6A

Body design

Forged or cast one-piece

Seat design

Metal-seated with hardfacing on wedge and Seats


Secondary seals in Pure Graphite
Anti-Static Device
Anti Blow out stem
O-ring /Lip seals configuration 
Fully Piggable design 
Negligible pressure drop in fully open position
Relief valve in the body cavity
Easy in line maintenance
Customized  design for horizontal stem installation and or vertical pipeline installation available 


Manual: Gear with handwheel
Actuated: Linear Pneumatic/ Hydraulic/Electric

Testing & certifications

Compliance with API 6D & ISO 5208 & API 598 inspection and testing
Compliance with API 6A inspection and testing 
Fire safe and fire tested as per API 6FA/ 607
Fugitive Emission as per ISO15848
PED 2014/68/UE 
Available as per API 6A Standard: 
Product specification levels (PSL 1, 2, 3, 3G and 4)
Performance requirement levels (PR1, PR2)
Design validation as per PR2F

GTX series valves are specifically design for on-off services and are suited to withstand all types of high abrasive services under high pressure and temperature conditions. The valve is equipped with a wedge and segment. The system achieves its positive seal capacity by mechanically expanding the gate and segment against the seats due to the thrust exerted by the stem.
In both in closed and open position, the expansion creates a tight seal against the upstream and downstream seats. During the valve stroke, this unique design resists expansion of the gate, allowing it to slide, avoiding wear of seats and gate. Valves are piggable in the fully open position and generate pressure drop across the valve equal to the inside diameter of the connecting pipe. Material selection is fully customizable to meet customers project specifications.