The externally controlled diaphragm valve type 2030/2031 consists of a pneumatically operated piston actuator, a diaphragm and a 2-way valve body. The proven and robust plastic actuator ensures use under hygienic or aggressive environmental conditions. The flow-optimised valve housings with low dead space enable high flow rates and a wide range of possible applications. The valve housing and diaphragm are available in all common materials and designs. The actuator has a compact autoclavable design (PPS version). The integration of automation units 8690/8697 is possible in all expansion stages (can be retrofitted). An explosion-proof ATEX/IECEx device variant is available. The diaphragm base is optionally available in plastic or stainless steel. The actuator is equipped with an integrated, optical position indicator as standard. A minimum/maximum stroke limitation can be installed as an option.