Pressure Reducing Valves DM 462V0 pages

Pressure Control Valves
Pressure Reducing Valves DM 462V
Page No. DM 462V/2.1.127.1 - Standing 18.09.2012
MANKENBERG GmbH | Spenglerstraße 99 | D-23556 Lübeck
www.mankenberg.de | Tel. +49 (0) 451 - 8 79 75 0
Valve for Hygiene Applications / Ultrapure Media
 Technical Data
Connection DN
Nominal Pressure PN
Inlet Pressure
Outlet Pressure
Kvs-Value
Temperature
Medium
25
2.5 - 16
8 bar
0.8 - 5 bar
4 m3/h
180 °C
liquids, gases and steam
 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 462V is a double-seat
diaphragm-controlled and spring-loaded proportional control valve
which is predominantly used for hygiene applications in the foodstuffs
and pharmaceutical industry. Owing to the PTFE protecting foil the
diaphragm is physiologically harmless and can be exposed to steam at a
temperature of up to 180°C.
The valve is made of stainless steel featuring excellent resistance to
corrosion. It has cavity-free internals and is suitable for CIP and SIP. The
angled design allows for complete draining. The precise cone spindle
guide is arranged outside the throughflow space, thus there is no
abrasion in the space through which the medium flows. The design was
carried out in accordance with ASME BPE. Clamp connections in
accordance with DIN 32676, DIN 11866 line A are standard.
The spring cap with spring module and adjusting screw, body bottom
(outlet), diaphragm and internals are connected to the body by means
of two profile clamps.
Thus replacement of the diaphragm or of the entire spring module for
another regulating range can be easily done without using special tools.
This also applies for maintenance work. Setting the regulating pressure
does not change the valve's overall height (non rising adjusting screw).
The outlet pressure to be controlled is balanced across the diaphragm by
the force of the valve spring (set pressure). As the outlet pressure rises
above the pressure set using the adjusting screw, the valve cone moves
towards the seat and the volume of medium is reduced. As the outlet
pressure drops the valve control orifice increases; when the pipeline is
depressurised the valve is open. Rotating the adjusting screw clockwise
increases the outlet pressure.
 Standard
»
»
»
»
all stainless steel construction (1.4404/1.4435, 316L)
non rising adjusting screw
quick-release body clamp ring
diaphragm protected by PTFE foil
 Options
» straight-through design or three connecting pieces
» polished version for food, pharmaceutical and superclean applications
(Ra ≤ 0.25/ ≤ 0.4/ ≤ 0.8 µm)
» pneumatic activation
» for toxic or hazardous media: sealed spring cap complete with leakage
line connection (incl. sealed adjusting screw). Must be installed with a
leakage line capable of draining leaking medium safely and without
pressure
» various diaphragm and seal materials suitable for your medium
» special connections: Aseptic, ANSI or DIN flanges, welding spigots;
other connections on request
» 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]
nominal diameter DN
25
4
Pressure Ranges [bar] and Nominal Pressure PN
0.8 - 2.5
2-5
PN 16/6
PN 16/10