Butterfly Valves

Butterfly Valve Liner/Liner
Butterfly Valve with Actuator
Butterfly Valve - Manual Operation

Butterfly valves have been a key system component in the hygiene industry for decades. They were developed, designed and manufactured for installation in pipelines for shutting off a flow of liquid. Suitable flow media include water, steam, petroleum, food, liquids in the chemical and pharmaceutical industry and pasty media.

AWH butterfly valves represent maximum quality, reliability and hygiene. The butterfly valves are supplemented with a comprehensive range of accessories, and therefore offer the ideal solution for every application. In addition to a range of manual operations, the valves can easily be equipped with pneumatic or electric drives. A wide range of initiators and control heads are available to monitor performance. A clear advantage of AWH butterfly valves are the bearing bushes which minimise the wear on the axle, making our valves very durable. Of course, we also provide you with all standard approvals and test certificates for the materials used, such as EHEDG, ATEX, APZ 3.1. to DIN EN 10204, FDA and EC regulation 1935/2004.

The semi-finished products we use are sourced from Western European stainless steel forges and have material certificates. The butterfly valves are manufactured exclusively in our headquarters in Hötensleben. They are subject to a continuous quality control process, which allows us to guarantee constant and consistently high quality. If you have questions on our product range, the AWH team will be happy to provide you with help and advice.


Security by Monitoring - AWH Butterfly Valves with RFID Transponder

The RFID transponder can be found today in almost all areas of daily life. We make use of this standard of technology and now implement RFID transponders in our butterfly valves. Read all relevant data directly on the valve. A special in-metal transponder stores all relevant data on the valve. The information can be updated or overwritten up to 10,000 times. You can save inspection intervals, item numbers, type of sealing, order numbers and further data in the memory. The transponder can be retrofitted, is water proof and immediately ready for use. Each transponder is unique as it has an ID number that cannot be overwritten. They can also store the item number from their P&ID on the chip. This means that the chip and valve can be assigned again and again.

This type of monitoring gives them increased security in dealing with their systems and processes. There are particularly robust devices with easy-to-read displays for reading and writing transponders, especially for applications in plants and production facilities. All data can be transferred from the mobile device to your system via bluetooth, for example.  

Our butterfly valves are available with the following process connections: 

  • welding acc. to DIN EN 10357 / DIN 11866
  • welding in ZFA execution by DIN EN 10357
  • male acc. to DIN 11851 / DIN 11864
  • liner with nut acc. to DIN 11851
  • liner with nut acc. to DIN 11864
  • male acc. to IDF
  • male acc. to RJT
  • male acc. to SMS
  • clamp acc. to DIN 32676
  • flange connections for ISO
  • connections for inch
  • as a tank bottom valves

Types of butterfly valves:

  • manual operation, plastic or stainless steel, locking or infinitely adjustable
  • pneumatic actuators, left or right-turning
  • pneumatic actuator with 24 V DC or ASI control head
  • pneumatic actuator with position control (control valve)
  • with ATEX classification
  • T-shaped butterfly valves
  • with position indicator
  • with stroke Limit

Technical Data
MaterialAISI 304 / 304L (1.4301 / 1.4307)
AISI 316L (1.4404)
others on request
SizeDN10 – DN200
1" - 4"
SealSilicon / EPDM / FKM / HNBR
Surfacefine turned inside up to Ra < 0,8 µm
others on request
Operating pressureDN10 - DN150 max. 10 bar / 145 psi
DN200 max. 6 bar / 87 psi