The hand-operated diaphragm valve type 2933 consists of a manually operated actuator, a diaphragm and a 2-way valve body. The manual actuator with plastic or stainless steel handwheel is optionally available with a diaphragm base made of stainless steel or plastic and ensures use under hygienic or aggressive environmental conditions. The flow-efficient valve housings with low dead space enable high flow rates and a wide range of applications. The valve body and diaphragm are available in all common materials and variants. The actuator has a compact, autoclavable design and is compatible with all other Bürkert diaphragm valves. An explosion-proof ATEX/IECEx device variant is available. The manual actuator is equipped with an integrated visual position indicator, a reproducible stroke scale and an adjustable closing limiter. As an option, the manual actuator can be equipped with sensors for position feedback.