Valves & Pumps

In large-scale long-distance water supply projects and complex drainage systems, air management and maintenance accessibility are equally critical. Metalsin provides the most highly integrated air management solution: the Double Orifice Combination Air Valve with a Built-in Isolation Mechanism. This product ingeniously integrates a high-capacity “kinetic air valve,” a high-precision “pressurized air release valve,” and a “vertical isolation gate valve” into …

Efficient air management is the backbone of a safe and high-performing water distribution system. The Metalsin‘s Standard Dual-Chamber Combination Air Valve is a heavy-duty, triple-function solution designed to protect large-diameter pipelines from entrapped air and catastrophic vacuum collapse. By physically isolating the large-volume air management from the high-pressure micro-venting, this dual-chamber design offers unparalleled reliability in the most demanding environments. …

Product Overview At Metalsin, we provide efficient and durable fluid control solutions for modern agriculture. Our Plastic Combination Air Valve is a “Triple Function” device specifically engineered for farm irrigation systems. By managing air intake and exhaust with high precision, it protects your irrigation network from air pockets and vacuum-related damage, ensuring uniform water distribution and system longevity. Construction Features …

At Metalsin, we provide advanced flow control solutions designed to safeguard your infrastructure. Our single body combination air valve is a space-saving, “triple function” device engineered to manage air in water pipelines with maximum precision. By integrating kinetic air discharge, vacuum relief, and automatic micro-venting into a single compact unit, this valve ensures peak hydraulic efficiency and prevents catastrophic pipeline …

At Metalsin, we specialize in providing robust flow control solutions for critical water infrastructure. Our Ductile Iron Air/Vacuum Valve (also known as a Kinetic Air Valve) is a single-chamber, single-orifice solution designed to manage large volumes of air during the filling and emptying of pipelines. Engineered for durability and precision, this dual-function valve ensures undisturbed pipeline operation and prevents structural …

General Introduction Metalsin provides high-performance automatic air release valves (commonly referred to as air venting valves) engineered for water supply, drainage, and wastewater treatment infrastructure. Unlike standard kinetic valves, our lever-type air release valves are designed for high-precision air management under operational stress. The advanced high-leverage mechanism allows the float to reliably open the orifice even at high working pressures …

At Metalsin, we provide a full spectrum of high-performance air valves engineered for the most demanding water system environments. Whether you are managing potable water supply, wastewater treatment, or reclaimed water transmission, our products are designed to ensure pipeline integrity and operational efficiency. We specialize in manufacturing valves that meet and exceed rigorous international standards, offering customized solutions tailored to …

Metalsin is a leading supplier of high-performance ductile iron resilient-seal gate valves (RSV) for South African waterworks projects. Engineered in strict accordance with the SANS/SABS 664 standard, our valves provide reliable service for both water supply and water treatment applications. Product Overview Our resilient-seated gate valves are available in both rising stem (RS) and non-rising stem (NRS) configurations. To ensure …

At Metalsin, we supply EN 1074-1 & EN 1074-2 compliant ductile iron resilient seated gate valves for municipal water supply and distribution applications. These valves, either furnished with a non-rising stem or OS&Y rising stem, are isolating valves for potable water, designed and type tested in accordance with EN 1074-1 (General requirements) and EN 1074-2 (Gate valves). Design pressures follow …

Metalsin’s SANS/SABS 664 non-rising stem (NRS) socket end gate valves are engineered for reliability, durability, and ease of installation in a wide range of water and fluid distribution systems. Designed to meet international standards, these valves are an excellent choice for municipal waterworks. Robust Construction The valve body and bonnet are crafted from high-quality ductile iron, ensuring strength and long-term …

Design Features Metalsin supplies SANS/SABS 664 ductile iron resilient-seal flanged gate valves with non rising spindle (NRS) for municipal waterworks. Key design features include: Manufactured in compliance with SANS/SABS 664, the South African National Standard for cast iron resilient-seal gate valves used in waterworks. This standard, published by South African Bureau of Standards (SABS), ensures strict control over materials, design, …

Product Overview An electric vertical fire pump is a vertically oriented centrifugal pump powered by an electric motor, designed to boost water pressure for fire protection systems such as sprinklers, standpipes, or hydrants. Its key components include a vertical motor, shaft, pump bowl assembly, column pipe, and discharge head. When activated, the motor drives the impeller, drawing water from a …