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Keofitt® Sampling Bags Select your Keofitt valve Keofitt® Classic M4™ Sampling Valve Keofitt® Classic W9™ Sampling Valve Keofitt® Classic Type I “INGOLD” Sampling Valves Keofitt® Classic W15™ Sampling Valves Keofitt® Classic W25™ Sampling Valves Keofitt® Simplex™ Sampling Valve Keofitt® Sesame™ Dual-Seat Sampling Valve Keofitt® Bottle Sampling Systems Keofitt® Micro Port


M4™ sampling valve

The M4™ sampling valve is the smallest Keofitt® valve, designed for sampling of low viscosity products, with particles up to 1.5mm in diameter. The main product range the M4™ valve is used for has 0-100cP viscosity.

Sampling Sterilization

Keofitt valve - sampling

Keofitt valve - sterilizing

The M4 valve is used in a range of applications such as breweries, dairies, pharmaceutical and biotechnological industries, with wide range of products such as:

The M4 valves come with a variety of valve bodies and heads that fit most situation. The bodies come in welded or clamp connection, the heads come with different types and membranes.

Technical Data

Temperature range: Rubber membrane: 0 to 130ºC / 32 to 266ºF
PTFE membrane: 0 to 150ºC / 32 to 302ºF
Process line pressure 
(inside tank or pipe):
Valve head type H, Q, K and N: 0 to 6 bar(g) / 0 to 87 psi (g)
Valve head type B: 0 to 12 bar(g) / 0 to 174 psi (g)
Material:  Steel parts: 316L*
Membranes: PTFE, Silicon and EPDM
FDA approved
Dimensions: Process dimension In-/outlet dimension
Body surface:  Inner surface Ra < 0,5 μm/20 μinch Electropolished outside
Material certificate: 3.1
*Other materials available on request