Diaphragm valves

In the manual SIRSI FLAV valves, closing and opening are entrusted to a maneuverable handwheel.

For pneumatic valves, the control is air controlled by entering the air cylinder. The degree of opening is indicated in an external rod, clearly visible to the operator.

The FLIR SIRSI valves, extraordinary for their versatility, are also CONVENIENT for common uses, become INDISPENSABLE when it is necessary to intercept difficult and aggressive liquids and fluids. Their safety makes them prefer to more expensive equipment.

The replacement of the diaphragm, which over time can wear out, takes place simply and quickly, without having to intervene on the flanges and without affecting the pipe.

It is available in various types of elastomers: Para rubber, Food Para, Neoprene, EPDM, MNBR, Hypalon, Viton, Silicone, Butyl, PTFE and Teflon.

The bodies are available in steel, cast iron, aluminum and with hard rubber, teflon, and ebonite coatings.

Complete catalog of Sirsi valves

Advantages of
diaphragm valves SIRSI

  • Straight flow of liquids

    The pressure drops in the valve are therefore minimal. Equivalent to pressure losses in a smooth pipe of equal length and diameter

  • Elimination of the stuffing box

    and all the inconveniences deriving from it

  • Elimination of the gaskets on the flanges

    they are effectively replaced by the sleeve itself which operates the seal with its edges, also offering a material superior to any other gasket.

  • Elimination of locations and plugs

    and consequent elimination of repairs, spare parts, etc.

  • Elimination of & quot; hammering "

    In the pipes, which are absorbed by the elastic sleeve.

How to order SIRSI Valves

In order to make the right choice for your Company and equip the Valve with the most suitable sleeve or membrane for your operations, we require some important information other than , type of valve, DN , we ask you to provide the following information:

1. The nature of liquid or gas
2. The concentration expressed as a percentage, in grams per litre o in Baumé degrees.
3. The minimum and maximum working temperatures.
4. The maximum working pressure.
5. The type of flanges desired

SIRSI Metallisator ‘s technical staff will choose the best sleeve or membrane for any type of valve for your application.

Fields of employment

Industrial sectors of the Sirsi diaphragm valves

Sirsi pinch valves are used successfully in many sectors.

Our technical office is available for advice on the most suitable clamp valves for each activity.