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 actuator with plastic valve body ensures reliable operation in hygienic or aggressive environments. The flow-optimised valve body with minimal dead space enables high volume flow rates and a wide range of possible applications. The valve body and the diaphragms are available in all common materials and versions. The actuator has a compact, autoclavable design (PPS variant). The integration of automation units 8690/8697 is possible at all levels of expansion (can be retrofitted). An explosion-proof ATEX/IECEx device variant is available. The diaphragm bonnet is available in either plastic or stainless steel. The actuator is equipped with an integrated, optical position indicator as standard, optionally a min./max. stroke limiter can be installed.