DM 1520 pages

DM 152

Pressure Control Valves
Pressure reducer for liquids and gases up to 130°C, steam up to 180 °C
CIP/SIP design for sanitary use
Technical Data
Connection

Nominal Pressure
Inlet Pressure
Outlet Pressure
Kvs-Value
Tightness
Surface Roughness

DN 15 - 50 clamps
other connections on request
PN 2.5 - 10 (see table below)
up to 8 bar
0.3 - 5 bar in 3 setting ranges
2 - 5.2 m3/h
in acc. to VDI/VDE-guideline 2174
(leakage rate K 0.05 % of Kvs-value)
K 3.2 µm

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 DM 152 pressure reducing valve is a diaphragm-controlled
spring-loaded proportional control valve which is primarily used for
hygienic applications in the food processing and pharmaceutical
industries. A PTFE protective foil renders the diaphragm physiologically safe and steamproof up to 180 °C. The valve does not require an external pilot line.
This pressure reducer is manufactured from deep-drawn stainless
steel featuring excellent corrosion resistance. It contains virtually
no dead pockets and is suitable for use in CIP and SIP systems.
The angled design allows complete draining.
The spring module comprising spring cover, spring, setting spindle, 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. Changing
the control pressure setting does not affect the height of the valve
(non-rising setting spindle).
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 setting spindle,
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 setting spindle clockwise increases the outlet pressure.

set screw (non encreasing)

spring module

body

STANDARD EQUIPMENT

Sheet no. DM 152/2.1.041.1 - issue 26.04.2004

•
•
•
•

All stainless steel construction
Non-rising setting spindle
Quick-release body clamp ring
Diaphragm protectd by PTFE foil

Kvs-Values [m3/h]
nom. diam.
Kvs-value

DN
3

m /h

15

20

25

32

40

50

2

3

3.5

4

4.5

5.2

OPTIONS

• Polished version for food, pharmaceutical and superclean
applications, surface roughness Ra K 0.25 or 0.4 or 0.8 µm
• Metal diaphragm
• For toxic or hazardous media: sealed spring cover complete
with leakage line connection (incl. sealed setting spindle).
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

Setting Ranges [bar] and Nominal Pressure PN
outlet press.
nom. diam.
PN

bar

1-5
15 - 50
10/10

0.8 - 2.5
15 - 50
10/6

0.3 - 1.1
20 - 50
10/2.5

Operating instructions, Know How and Safety instructions must be
observed.
We reserve the right to alter technical specifications without notice.

Pressure Tech 2000 Limited • Unit 6, Graphite Way, Hadfield, Glossop, Derbyshire SK13 1QG - GB • Tel. +44-1457-899307 • Fax +44-1457-899308