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Pressure Reducing Valves DM 668E0 pages
Pressure Control Valves
Pressure Reducing Valves DM 668E
Page No. DM 668E/2.1.121.1 - Standing 24.10.2012
MANKENBERG GmbH | Spenglerstraße 99 | D-23556 Lübeck
www.mankenberg.de | Tel. +49 (0) 451 - 8 79 75 0
Pressure Regulating Hydrant Valve for Sea Water
Technical Data
Connection DN
Nominal Pressure PN
Inlet Pressure
Outlet Pressure adjustable
Kvs-Value
Temperature
Medium
40
20/10
9 - 20 bar
6 - 8,5 bar
14 m³/h
50 °C
liquids
Description
Medium-controlled pressure reducers are simple control valves offering
accurate control while being easy to install and maintain. They control
the pressure downstream of the valve without requiring pneumatic or
electrical control elements.
The pressure reducing valve DM 668E is a diaphragm-controlled,
spring-loaded proportional valve for medium flow rates. The valve has
been made of deep-drawn titanium grade 2 with excellent corrosion
resistance. The pipe-shaped inlet connection of the casing has been
provided with the seat bore. The soft seal cone is guided in the seat
part and is connected with the regulating diaphragm. The valve can be
manually shut off by means of the hand wheel.
The spring module comprising spring cap, spring, adjusting screw,
diaphragm and internal components, is connected to the valve body only
by means of a clamp ring and two bolts. Changing the diaphragm or the
complete spring assembly for a different control pressure range is
extremely simple and does not call for special tools. The same applies to
servicing and maintenance.
Standard
»
»
»
»
medium wetted parts made of Titanium
spring cap made of CrNiMo-Stahl
quick-release body clamp ring
non rising adjusting screw
Options
» a variety of connections with fire
hose couplings typical for the
country in question
» special versions on request
Operating instructions, know how and safety instructions must be
observed. All the pressure has always been indicated as overpressure.
We reserve the right to alter technical specifications without notice.
Kvs values [m3/h]
14
Setting Ranges [bar]
6 - 8,5
