Dual Plate Lug Check Valve Manufacturer in Africa

Product Introduction

Pipeline systems handling liquids, gases, and process media require dependable protection against reverse flow without adding unnecessary weight or installation complexity. A Dual Plate Lug Check Valve combines a compact dual-disc mechanism with lug-type body construction, allowing the valve to be securely installed between flanges while supporting dead-end service in suitable pressure classes. Its spring-assisted closing action reduces reverse flow and minimizes pressure surges, making it suitable for both horizontal and vertical piping installations. African Valve is a Top Dual Plate Lug Check Valve Manufacturer in Africa, manufacturing and supplying Dual Plate Lug Check Valves in various material grades, pressure classes, seat configurations, and lug designs for projects across Nigeria, Egypt, South Africa, Kenya, Ghana, and other African countries, along with international export destinations.

Application Considerations

The Dual Plate Lug Check Valve differs from ordinary swing type check valves which need more travel of the plate, in that the Dual Plate Lug Check Valve is fitted with two light spring loaded plates which will have to move for a shorter distance before attaining full closure or full opening. The short travel is an advantage in case there are changes in flow conditions because this minimizes the chances of reverse flow and water hammer. The lug body construction is helpful in facilitating the servicing process.

Valve Construction

The components of this valve include lug body design, two semicircular discs, hinge pin, torsion spring, valve seat, and holding device. In the case of usual conditions of flow rate, the force applied by the discs is more than that of the spring, causing the opening of the two discs. On the halt or reversal of the medium flow, the spring closes both discs with the seat.

Materials & Construction

The valve is manufactured using:

Carbon Steel – ASTM A216 WCB
Stainless Steel – ASTM A351 CF8 / CF8M
Duplex Stainless Steel – ASTM A995 Grade 4A
Super Duplex Stainless Steel – ASTM A995 Grade 5A
Cast Iron – ASTM A126 Class B

Construction features include:

Lug Type Body Design
Dual Spring-Loaded Disc Assembly
Stainless Steel Hinge Shaft
Torsion Spring Closing Mechanism
Replaceable Soft or Metal Seat
Precision Machined Sealing Surfaces
Compact Face-to-Face Dimensions

Technical Specifications

Size Range: DN50 to DN1200 (2" to 48")
Pressure Ratings: Class 150, 300, 600 | PN10, PN16, PN25, PN40
Design Standards: API 594, ASME B16.34
Face-to-Face Standard: API 594
Testing Standard: API 598
End Connections: Lug Type
Operation: Automatic

Industrial Applications

Dual Plate Lug Check Valves are widely used in:

Water Distribution Systems
Pumping Stations
Oil and Gas Pipelines
Chemical Processing Plants
Marine Installations
Power Generation Facilities
Fire Protection Networks
Utility Pipelines

Product Features

Lug body allows secure between-flange installation
Fast spring-assisted closing minimizes water hammer
Compact design reduces installation space
Low pressure loss during forward flow
Suitable for horizontal and vertical pipelines
Manufactured according to internationally recognized engineering standards

Manufacturing & Inspection

Dual Plate Lug Check Valves are manufactured according to international engineering standards and customer project specifications. Each valve undergoes dimensional inspection, hydrostatic shell testing, seat leakage testing, spring performance verification, operational testing, and final quality inspection before dispatch. Material Test Certificates (MTC), pressure test reports, inspection records, and supporting documentation are available to satisfy engineering, procurement, and project compliance requirements.

Supply Across Africa

African Valve supplies Dual Plate Lug Check Valves to water utilities, energy facilities, marine projects, processing plants, pipeline contractors, and infrastructure developments throughout Nigeria, Egypt, South Africa, Kenya, Ghana, and other African countries. Valves are available in multiple material grades, pressure classes, seat configurations, and lug body designs to meet project-specific backflow prevention requirements.