DM 652 ATEX H2 Van Giảm Áp DM 652 ATEX H2 Mankenber, Mankenber Viet Nam
Model: Valve DM 652 ATEX H2
Hãng: MANKENBERG
Kết nối DN: 15-50
Kết nối G: 1/2 - 2
Áp suất đầu vào: 40 bar
Áp suất đầu ra: 0,1 - 12 bar
Kvs value: 5 - 22 m³ / h
Nhiệt độ: -10 ° C lên đến 130 ° C
Hotline: 0933.911.903
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Pressure control valves
Pressure reducing valves DM 652 ATEX H2
for medium to large flow rates, especially for hydrogen applications
Technical Data
Connection DN 15 - 50
Connection G 1/2 - 2
Nominal pressure PN 40
Inlet pressure 40 bar
Outlet pressure 0,1 - 12 bar
Kvs value 5 - 22 m³/h
Temperature -10 °C up to 130 °C
Medium liquids, gases, hydrogen
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.
The pressure reducing valve DM 652 ATEX H2 was specially developed
for hydrogen applications. It is a diaphragm-controlled, spring-loaded
and balanced proportional control valve for medium to large flow rates.
The valve is completely made of high-quality stainless steel with excellent
corrosion resistance. Since the body and the bonnet are manufactured
by the deep-drawing process, the valve is very lightweight and compact.
The valve cone is soft-sealed.
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 valves 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 V optional IV.
Standard
» All stainless steel construction
» Non rising adjusting screw
» Sense line connection
» Balanced cone for controlling the outlet pressure indipendently from
the initial pressure
Special features of the ATEX version
» Conformity to ATEX Directive 2014/34/EU and DIN EN ISO 80079-36
» Leakage line connection, adjusting screw seal and lock
» Potential equalization among the valve components
» Grounding device at the valve body
» Secured body connections with collar flange
» Electrically conductive components
» Piston made of low-spark material
» Additional venting hole in the spring cap
Options
» Various diaphragm and seal materials suitable for your medium
» Special connections: Aseptic, ANSI or JIS flanges, NPT, welding spigots;
other connections on request
Operating instructions, supplementary operating instructions, know-how
and safety instructions must be strictly observed. All the pressure has
been specified as overpressure. Technical data subject to change.
| ATEX Marking |
| Ex II 2G Ex h IIB+H2 85 °C ... 155 °C Gb X |
| Kvs-values [m3/h] | |||||||
| nominal diameter | G | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 |
| DN | 15 | 20 | 25 | 32 | 40 | 50 | |
| Kvs-value | m3/h | 5 | 7 | 8 | 22 | 22 | 22 |
| Setting Ranges [bar], Nominal Pressure | ||
| 0.1-0.5 | 0.3-1.1 | 0.8-2.5 |
| PN 16-40/1 | PN 16-40/2,5 | PN 16-40/6 |
| Setting Ranges [bar], Nominal Pressure | ||
| 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 | |
| 0.1 - 0.5 | 40 | 25 |
| 0.3 - 1.1 | 30 | 18 |
| 0.8 - 12 | 20 | 12 |
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