Flow indicators

Flow indicators

Flow indicators that will never let you down. For decades. Under the toughest conditions.

We have a complete range of flow indicators, which are used worldwide for safe process observation. Our flow indicators glasses meet the highest quality standards – according to our quality commitment “Swiss Excellence – Since 1936”.

Flow indicators are used to monitor liquid flows and fill levels in pipelines. They enable a reliable monitoring of individual devices and entire systems (on site or remotely with our camera systems)

In combination with our light fittings, process monitoring is also possible under difficult conditions (both in [Ex] and non-[Ex] areas).

Requirements

Our portfolio consists of four product series. Each product is configurable according to your needs. This allows us to cover all common requirements. Here is an overview of the possibilities:

(1) Versions/ product series:

SFI S: With weld ends
SFI F-VG: With connecting flanges; Casted version
SFI F-VS: With connecting flanges; Welded version
SFI P: Pharmaceutical version for sterile applications/ clean rooms
(2) Sizes/ application:

Nominal sizes: From DN 15 to DN 300, or 0.5" to 12"
Maximum operating pressure: From 10 bar to 40 bar and vacuum
Maximum operating temperature: 150°C or 280°C (depending on the glass plate)
Connections: According to DIN or ANSI
(3) Approvals:

Gaskets with FDA approval, USP Class VI, regulation (EC) No. 1935/2024, etc. (others on request)
(4) Machining/ special versions:

Content and flow indicators: Flaps, rotors, or balls
Designs without dead spaces
Inner lining made from PTFE
Mechanical polishing up to Ra < 0.4

Do you have further requirements? Please contact us at any time. We will be happy to find a solution together.

Why Max Müller?

Safety. In order to ensure the highest quality and full traceability, we only use components that are made in Europe. Therefore, our products will never let you down.

Reliability. Founded in 1936, MAX MÜLLER has grown into one of the world‘s leading manufacturers of process observation equipment. Therefore, we will always be there for you.

Company profile/ overview

Product inquiry

We look forward to hearing from you. You can get in touch with us as follows:

Contact/ locations

Contact form

Data sheets/ downloads

			Data sheet
For general industrial use	With welded ends	SFI S
	With connecting flanges: Casted version	SFI F-VG
	With connecting flanges: Welded version	SFI F-VS
For the pharmaceutical and food industry	Pharmaceutical version for sterile applications/ clean rooms	SFI P

Add-ons

We have the following add-ons for flow indicators:

Light fittings

High-quality light fittings and timers, made of stainless steel or aluminium, for either [Ex] or non-[Ex] applications

Camera systems

High-quality digital cameras, made of stainless steel, for either [Ex] or non-[Ex] applications