Monthly Archives: 2025-05

How-to: Control the speed of an actuator

May 26, 2025

Read on to learn how to control the speed of an actuator.

Protecting pneumatic actuators from contamination

Aug 05, 2026

Quick-exhaust-block with permanent spring chamber purging. Due to the continous supply of clean compressed air (0.2 bar), the spring chamber remains permanently protected against the ingress of contaminated surrounding air.

News

HAFNER oscillating valve PFF 520 701 G

Jul 20, 2026

Our HAFNER oscillating valves have proven themselves for years in the process and chemical industries, as well as in the food, pharmaceutical, and packaging industries. You, too, can count on reliable availability and professional advice!

HAFNER series development: MD series becomes MDS series

News

Advancing the MD series to the MDS series

Jun 11, 2026

Customer information. To offer more options and customized solutions, we are evolving the existing MD series into the new MDS series. New products will be available by Q3 2026.

HAFNER Pneumatik video tutorial: HVRZN hand lever valve

How-to

New video tutorial: HVRZN hand lever valve

Jun 01, 2026

This video provides a brief explanation of how the HVRZN valve works, which can be used to override a positioner or another control valve.

News

Reduction of HAFNER Product Portfolio

May 20, 2026

Discontinuation of Ex ia solenoid systems, type FES 15 3/2 NC 24DC Ex ia and Ex ia solenoid valves of types MDSF, MODSF, and MNDSF.