· 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
29 bis, rue Paul Bert
44600 Saint-Nazaire - France
Tél. +33 (0)2 51 10 18 18
Fax +33 (0)2 51 10 18 19
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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 safety valve automatically, and without the use of any energy other than that of the fluid concerned, discharges a quantity of fluid in order to prevent any overshoot of a predetermined safety pressure. It is designed to close and stop any further fluid flow after normal pressure operating conditions have been restored. The safety valve thus contributes to the safety of the installation by preventing any accidental pressure rise which would damage certain equipment such as: tanks, pipes, measuring instruments, etc.
The GMI penstock is a piece of hydromechanical equipment used in applications such as sanitation, dams, pumping, and irrigation.
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. Please give us a call, on +33 2 51 10 18 18: our Technical and Sales Representatives are here to help you find the right solution, right away and at the best price. 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, boilermaking, chemicals, cement manufacture, pumping circuits, cogeneration, 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.