Mode Of Operation - SPX FLOW APV DELTA MS4 Instruction Manual

APV
APV_MS4_UK-3_102018.indd
DELTA MS4
CU4 control unit
leakage indication
Diaphragm valve with „fan support"
DELTA MS4
Instruction Manual UK- rev. 3
4.

Mode of Operation

4.1. General terms
DELTA MS4 diaphragm valves have been designed for
use in the brewing and beverage industries, in the dairy and food
industries as well as for chemical and pharmaceutical applications.
The field of application of the DELTA MS4 valve comprises the safe
shut-off of pipeline sections.
Diaphragm valves offer optimum product protection in hygienic and
aseptic applications. Product safety is provided by the hermetic
separation of the product chamber to the exterior (atmosphere) by
means of a diaphragm with fan support.
The standard MS4 valve series is equipped with a valve
position indication.
actuator
As an option, a control unit can be installed on the actuator.
- Operation by pneumatic actuator with air connection, reset by spring
force. iThe actuator is generally mounted in normally closed (NC)
manner.
- Through different assembly of the actuator, the following designs
are possible:
NC: actuator normally closed (NC); air-to-raise, spring-to-lower
NO: actuator normally open (NO); air-to-lower, spring-to-rais
housing
- The inner parts of the actuator are maintenance-free.
- In order to prevent pressure hammers, the valve should be closed
against the flow direction of the medium.
- Leakages at the diaphragm are indicated in the yoke area through a
leakage drain.
- Different valve designs are available:
Single seat valves:
Tank outlet valves:
Change-over valves:
DELTA MS4
DELTA MSP4
(with diaphragm shaft made of PTFE)
DELTA MSR4
(with regulating cone)
DELTA MST4
DELTA MSTP4
(with diaphragm shaft made of PTFE)
DELTA MSES4
UK
4