Call Us Now :

+1 347 657 9538
All Categories
Price
$ -
Size
Body Materials

Gate Valve

Gate Valve

African Valve is a trusted Gate Valve Supplier in Angola, providing reliable shut-off solutions for isolation duties in fluid and gas pipelines. Our gate valves offer minimal flow resistance and a straight-through flow path, making them ideal for full-open or full-close operations in critical industries. Designed for durability and zero-leakage performance, our valves handle high pressure and temperature with ease.

Function & Working

Gate valves function by lifting a solid gate or wedge out of the flow path to start or stop the media. They are not intended for throttling but for isolation applications where full flow is required. The rising or non-rising stem indicates the valve’s open or closed position, depending on the design.

Advantages

  • Low pressure drop due to unobstructed bore

  • Tight shut-off for isolation applications

  • Suitable for bi-directional flow

  • Long service life under high pressure

  • Available in various stem and bonnet designs

Types Offered

  • Rising Stem Gate Valve

  • Non-Rising Stem Gate Valve

  • Double Disc Gate Valve

  • Forged Steel Gate Valve

  • Pressure Seal Gate Valve

Industries Served

  • Oil & Gas Transmission

  • Chemical and Petrochemical Plants

  • Water Supply and Treatment

  • Power Generation

  • Pulp and Paper

  • Marine and Offshore Platforms

Key Components

  • Valve Body – Cast or forged construction to withstand high pressure

  • Wedge or Gate – Solid, flexible, or split disc depending on application

  • Stem – Transmits motion to the gate, rising or non-rising type

  • Bonnet – Sealed with bolted, welded, or pressure seal design

  • Seat Rings – Renewable or integral, designed for leak-tight shutoff

  • Gland and Packing – Ensures stem sealing under variable conditions

  • Actuator – Manual, electric, or gear-operated depending on size and application

Technical Specifications

  • Design Standards: API 600, API 6D, ASME B16.34, BS 1414

  • Body Materials: WCB, LCB, WC6, CF8, CF8M, Duplex, Super Duplex, Monel, Inconel

  • Trim Options: Trim 5 (SS410), Trim 8 (SS316), Trim 9 (Monel), Stellite

  • Pressure Ratings: Class 150 to 2500 / PN10 to PN420

  • Size Range: DN50 to DN1200

  • End Connections:

    • Flanged (RF or RTJ – Raised Face or Ring Type Joint)

    • Butt Weld (BW – Butt Welded for permanent high-pressure connections)

    • Socket Weld (SW – Compact weld joints suitable for small-bore systems)

    • Threaded (NPT – National Pipe Thread for low-pressure piping)

  • Actuation Options:

    • Handwheel

    • Gear Operated

    • Electric Actuator

  • Special Features:

    • Solid or flexible wedge designs

    • Fire-safe and fugitive emission tested

    • Pressure seal bonnet for high-pressure steam service

    • Engineered by a certified Gate Valve Supplier in Angola

Shopping Cart

©2025. African Valve. All Rights Reserved.