Diaphragm valves

Diaphragm valves

We offer a wide range of different types diaphragm valves.

Diaphragm valves are mainly used when cross-contamination has to be avoided. Due to the functional principle of "dead spots,"it is guaranteed that the fluid in the vessel will be left residue-free.

Our diaphragm valves are available in
• straight type and angle type
• dimensions from DIN 15 to DIN 200
• with flange connection acc. to DIN 
• with socket connection
• type KB with full bore with rising stem
• with position indicator
• body material gunmetal and bronze
• stem material brass and stainless steel
• diaphragm material EPDM and NBR
• with electrical, pneumatic and hydraulic actuator

The flanges alternatively can also be drilled according to ANSI, JIS or BS. The socket design has a standard Whitworth pipe thread and is also available with a NPT thread. 

The diaphragm valves possess the following characteristics: completely cleared of dead spots, glandless and perfectly sealed.

The possible operational use of the diaphragm valves will be determined by the temperature of the chemical resistance of the membrane. The material of the pipes and devices is of major importance.

All diaphragm valves are operated by a hand wheel and on request can be operated by means of an electric or pneumatic actuator. If the valve cannot be operated directly or if there is no actuator available, Sandermarine is able to offer a special custom-made mechanical remote control version such as e.g. a chain wheel.

All diaphragm valves have the ABS approval.

You are searching for furthermore designs, different materials, diameters, working pressures or temperature ranges ?

Please ask us !  We are pleased to help you.


Phone  +49 (421) 48603-0
Fax.    +49 (421) 48603-89




... also available:

Diaphragm valve VG 85238 PN 6 DN 100
diaphragm NBR,
with position indicator,
with crank handle VG 85086/A,
flanges VG 85011/3
material: Gbz 10 / CuSn 6

further design are possible .... ask us !