Gate valve

for isolating function in pipeline

VTC line gate valves

Rising stem (OS&Y) and non-rising stem gate valves for oil and gas and industrial pipeline applications where reliable shut-off and clear flow isolation are required. These valves are commonly specified for isolation service in pipelines, pumping stations, and process units, where full open or full closed operation is essential. Both stem configurations are selected based on installation constraints, visibility requirements, and operational philosophy defined by EPC contractors and end users.

Specification

Nominal size

2"-36", DN 50-900

Pressure ratings

class 150# - class 1500#, PN 25-250

Materials

carbon steel (WCB), stainless steel, alloy steel

Actuating

manual, pneumatic, electric

Applicable standards

Design standard

API600, API 602, API 603, ISO 14313, ASME B 16.34

Face to face dimension

ASME 16.10

Flange standard

ASME 16.5

Butt welded ends

ASME 16.25

Pressure test

API 598

Technical information

Design and construction features

Technical sheets

OPERATION
(A)

STEM LOAD
(B)

YOKE
(C)

BONNET TYPE
(D)

END CONNECTIONS
(E)

YOKE SLEEV
(F)

PACKING
(G)

BODY TO BONNET JOINT (H)

T-HEAD
(I)

WEDGE TYPE
(J)

solid wedge provides robust, rigid sealing in gate valves, offering reliable shut-off in clean service where minimal seat misalignment is expected
flexible wedge allows the gate valve to maintain tight shut-off by adapting to minor seat misalignment and thermal expansion during operation
split wedge consists of two separate sealing elements that adjust independently, providing improved seat alignment and tight shut-off under varying pressure and temperature conditions.