DM-152 Pressure control valve - Pressure Tech Limited - #1

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 K_vs-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 K_vs-value)

K 3.2 urn

set screw (non encreasing)

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.

STANDARD EQUIPMENT

• All stainless steel construction

• Non-rising setting spindle

• Quick-release body clamp ring

• Diaphragm protectd by PTFE foil

OPTIONS

• Polished version for food, pharmaceutical and superclean applications, surface roughness Ra K 0.25 or 0.4 or 0.8 |jm

• 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

Operating instructions, Know How and Safety instructions must be observed.

spring module

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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