· Ball valves
· Gate valves
· Butterfly valves
· Pinch valves
· Knife gate valves
· Diaphragm valves-Straight through type
· Penstocks valves
· Check valves
· Strainers
· Safety relief valves
· Bursting discs
· Expansion joints
· Pressure regulators
· Steam traps
· Level gauges
· Sight flow indicators
· Pneumatic actuators
· Electric actuators
· Hydraulic actuators
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44600 Saint-Nazaire - France
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GMI hydraulic actuators allow the remote automatic control of valves. The hydraulic oil network allows the opening and closing of valves.
The GMI butterfly valve is a HIGH-PERFORMANCE valve whose disc rotates about an axis perpendicular to the direction of flow. When it is in the 'open' position, fluid flows around it. There are two types: butterfly valves with metal/metal bearing surfaces, and those with flexible bearing surfaces.
The GMI gate valve has a disc which moves linearly, perpendicular to the direction of flow at the valve seats. It can have angled seats (single-wedge disc, flexible-wedge disc) or parallel seats (free expansion, self-tightening, slice gate valve, gate valve with seat ring). External sealing is obtained using a stuffing box or, less commonly,a bellows.
The gate valve acts as a shut-off device for a fluid, whether gas or liquid.
All of our valves are made to the strictest quality standards and in compliance with the regulations in force (ISO 9001, DESP, EXAT, API, ASTM, ANSI, etc.). Our brand names are the guarantee of this commitment. Our insistence on quality and the reactivity of our sales department have won us the trust of the most demanding customers.
This website will allow you to discover our range of products, help you to find what you are looking for, and give you access to the complete set of technical documentation. Your choice of valves for your industrial installations will affect the operation of your facilities, not to mention the maintenance costs.
If a product is poorly suited to your application, it can cause leakage, excess consumption, or pollution.
Our years of experience in the field of industrial valves in industries such as: ship-caissons, hydroelectric plants and dams, boiler making, chemicals, cement manufacture, pumping circuits, co generation, shipbuilding, cryogenics, oil depots, distilleries, dosing, the environment, industry, the heating industry, irrigation, paper, petrochemicals, oil, oil platforms, drinking water, energy production, powder products, the iron and steel industry, purification plants, sugar mills, water treatment, pipes, biofuels, and water supply, all contribute to our strong credibility on the market. Because of our careful observance of quality and manufacturing standards (ISO 9001, ACS, AISI, ANSI, API, APSAD, CE, DESP, Fire safe to BS 6755, FM, NACE, NF, NFE, fire safety, UL and VDI), we can handle and provide a guarantee for the widest range of industrial fluids, such as acids, compressed air, ballast, oxygen, water, gases, industrial gases, natural gas, inert gases, helium, hydrogen, oil, sea water, solvents, vapour, acetylene, ammonia, and nitrogen.