DM-1520 pages

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Pressure Control Valves.

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DM 152

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Pressure reducer for liquids and gases up to 130°C, steam up to 180 °C

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CIP/SIP design for sanitary use

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DN 15 - 50 clamps

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other connections on request

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PN 2.5-10 (see table below)

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up to 8 bar

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0.3 - 5 bar in 3 setting ranges

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2 - 5.2 m3/h

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in acc. to VDI/VDE-guideline 2174

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(leakage rate < 0.05 % of Kvs-value)

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< 3.2 urn

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Technical Data

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Connection

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Nominal Pressure

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Inlet Pressure

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Outlet Pressure

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Kvs-Value

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Tightness

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Surface Roughness

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Description

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Medium-controlled pressure reducers are simple control valves of-

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fering accurate control while being easy to install and maintain.

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They control the pressure downstream of the valve without requi-

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ring pneumatic or electrical control elements.

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The DM 152 pressure reducing valve is a diaphragm-controlled

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spring-loaded proportional control valve which is primarily used for

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hygienic applications in the food processing and pharmaceutical

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industries. A PTFE protective foil renders the diaphragm physiolo-

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gically safe and steamproof up to 180 °C. The valve does not re-

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quire an external pilot line.

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This pressure reducer is manufactured from deep-drawn stainless

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steel featuring excellent corrosion resistance. It contains virtually

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no dead pockets and is suitable for use in CIP and SIP systems.

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The angled design allows complete draining.

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The spring module comprising spring cover, spring, setting spind-

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le, diaphragm and internal components, is connected to the valve

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body only by means of a clamp ring and two bolts. Changing the

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diaphragm or the complete spring assembly for a different control

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pressure range is extremely simple and does not call for special

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tools. The same applies to servicing and maintenance. Changing

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the control pressure setting does not affect the height of the valve

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(non-rising setting spindle).

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The outlet pressure to be controlled is balanced across the dia-

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phragm by the force of the valve spring (set pressure). As the out-

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let pressure rises above the pressure set using the setting spindle,

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the valve cone moves towards the seat and the volume of medium

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is reduced. As the outlet pressure drops the valve control orifice in-

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creases; when the pipeline is depressurised the valve is open.

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Rotating the setting spindle clockwise increases the outlet pressu-

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re.

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STANDARD EQUIPMENT

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• All stainless steel construction

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• Non-rising setting spindle

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• Quick-release body clamp ring

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• Diaphragm protectd by PTFE foil

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OPTIONS

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• Polished version for food, pharmaceutical and superclean

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applications, surface roughness Ra < 0.25 or 0.4 or 0.8 urn

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• Metal diaphragm

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• For toxic or hazardous media: sealed spring cover complete

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with leakage line connection (incl. sealed setting spindle).

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Must be installed with a leakage line capable of draining

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leaking medium safely and without pressure

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• Various diaphragm and seal materials suitable for your medium

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• Special connections: Aseptic, ANSI or DIN flanges, welding

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spigots; other connections on request

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• Special versions on request

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Operating instructions, Know How and Safety instructions must be

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observed.

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set screw (non encreasing)

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spring module

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body

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KVs-Values [m3/h
nom. diam. DN	15	20	25	32	40	50
Kvs-value m3/h	2	3	3.5	4	4.5	5.2

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Setting Ranges [bar] and Nominal Pressure PN
outlet press, bar	1 - 5	0.8-2.5	0.3-1.1
nom. diam.	15-50	15-50	20-50
PN	10/10	10/6	10/2.5

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We reserve the right to alter technical specifications without notice.

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PRESSURETECH

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

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