- Van Giảm Áp DM 652
- Model: DM 652
- Hãng: MANKENBERG
Kết nối DN: 15-50
Kết nối G: 1/2 - 2
Áp suất đầu vào: 40 bar
Áp suất đầu ra: 0,02 - 12 bar
Kvs-value : 5 - 22 m³ / h
Nhiệt độ: 190 ° C-
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The pressure reducer DM 652
Is a diaphragm-controlled spring-loaded and balanced proportional control valve for universal application.
This pressure reducer is manufactured from deep-drawn stainless steel featuring excellent corrosion resistance.
The valve cone is fitted with a soft seal.
Technical data
Connection DN: 15 - 50
Connection G: 1/2 - 2
Nominal pressure PN: 40
Inlet Pressure up to 40 bar
Outlet Pressure: 0.02 - 12 bar
Kvs-value: 5 - 22 m³/h
Temperature: 190 °C
Medium liquid, gases and steam
*RT = -10 °C up to + 50 °C
Description
Self-acting 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.
Thr pressure reducing valve DM 652 is a diaphragm-controlled, springloaded and balanced proportional control valve for universal application. This
pressure reducer is manufactured from deep-drawn stainless steel featuring
excellent corrosion resistance. The valve cone is fitted with a soft seal.
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 range is very easy and without
special tools. The same applies to servicing and maintenance.
The outlet pressure to be controlled is balanced across the control unit 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.
The valve requires a sense line (to be installed on-site).
These valves are no shut-off elements ensuring a tight closing of the valve.
In accordance with DIN EN 60534-4 and/or ANSI FCI 70-2 they may feature
a leakage rate in closed position in compliance with the leakage classes III
or V, optional IV.
Standard
» All stainless steel construction
» Non rising adjusting screw
» Quick-release body clamp ring
» Sense line connection
» PTFE protective foil for the diaphragm
» Balanced cone for controlling the outlet pressure indipendently from the
inlet pressure
Options
» Pressure gauge connection
» Electro-pneumatic actuation
» Internal sense line
» Clean gas version with special connections
» Water-cooled thermal protection for steam up to 220 °C
» For toxic or hazardous media: sealed bonnet 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 JIS flanges, NPT, welding spigots;
other connections on request
» Special versions on request
Technical specification
| Kvsvalues [m3/h] | |||||||
| nominal diameter | G | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 |
| DN | 15 | 20 | 25 | 32 | 40 | 50 | |
| Kvsvalue | m3/h | 5 | 7 | 8 | 22 | 22 | 22 |
| Setting range [bar] | |||
| 0.02 - 0.12 | 0.1 - 0.5 | 0.3 - 1.1 | 0.8 - 2.5 |
| PN 16 - 40 / 1 | PN 16 - 40 / 1 | PN 16 - 40 / 2,5 | PN 16 - 40 / 6 |
| Setting range [bar] | ||
| 2 - 5 | 4 - 8 | 6 - 12 |
| PN 16 - 40 / 10 | PN 16 - 40 / 16 | PN 16 - 40 / 16 |
| Permissible Reduction Ratio (max. p1/p2) | ||
| setting range bar | nominal diameter | |
| G 1/2 - 1 | G 1 1/4 - 2 | |
| DN 15 - 25 | DN 32 - 50 | |
| 0.02 - 0.12 | 80 | 50 |
| 0.1 - 0.5 | 40 | 25 |
| 0.3 - 1.1 | 30 | 18 |
| 0.8 - 12 | 20 | 12 |
