Valves & Pumps

Overview & Typical Applications A Reduced Bore Brass Ball Valve (also known as a reduced port ball valve) features a flow aperture inside the ball that is one size smaller than the connecting pipeline’s nominal diameter. This optimized internal geometry delivers exceptional pressure control, reduces operating torque, and minimizes thermal stress on piping systems without compromising flow efficiency. Manufactured from …

Introduction & Main Applications The brass ball valve with extended face-to-face length (M/F threaded, nickel plated) is a heavy-duty quarter-turn isolation valve engineered for fluid control applications where a standard ball valve dimension is insufficient. Manufactured from high-density hot-forged brass and finished with a protective nickel plating, this full-port valve provides superior corrosion resistance, high pressure endurance, and low hydraulic …

Introduction & Main Applications A brass ball valve is a high-performance mechanical device utilized to open, close, and precisely regulate the flow of fluids within a piping infrastructure. Featuring a quarter-turn design, it utilizes a hollow, perforated, and pivoting ball to control flow, offering quick shut-off and excellent reliability. Manufactured from premium brass copper alloys, these valves exhibit outstanding structural …

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 …