Van Giảm Áp DM 762 ATEX Mankenber, Mankenber Viet Nam
Model: DM 762 ATEX
Hãng: MANKENBERG
Kết nối DN: 15-50
Kết nối G: 1/2 - 2
Áp suất danh nghĩa PN: 16
Áp suất đầu vào: lên đến 16 bar
Áp suất đầu ra: 0,002 - 0,125 bar
Kvs-value: 0,2 - 3,6 m³ / h
Nhiệt độ: 130 ° C
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Millibar valve for potentially explosive atmospheres
Pressure reducing valves DM 762 ATEX
The pressure reducer DM 762 ATEX
is a diaphragm-controlled spring-loaded proportional control valve for very small outlet pressures and medium volumes in potentially explosive atmospheres.
This pressure reducer is manufactured from deep-drawn stainless steel (1.4404 / 316L) featuring excellent corrosion-resistance.
The valve cone is fitted with a soft seal.
PRESSURE CONTROL
Pressure reducing valve DM 762 ATEX
Millibar control valve for potentially explosive atmospheres
Technical data
Connection DN 15 - 50
Connection G 1/2 - 2
Nominal pressure PN 16
Inlet Pressure up to 16 bar
Outlet Pressure 0.002 - 0.125 bar
Kvs-value 0.2 - 3.6 m³/h
Temperature 130 °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.
The DM 762 ATEX pressure reducing valve is a diaphragm-controlled
spring-loaded proportional control valve for very small outlet pressures and
medium volumes in potentially explosive atmospheres. This pressure reducer is manufactured from deep-drawn stainless steel featuring excellent
corrosion resistance. The valve cone is fitted with a soft seal.
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).
We recommend that G 1 and G 1½ or DN 25 and DN 40 connections be
used.
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.
Standard
» All stainless steel construction
» Sense line connection
Special features of the ATEX version
» Compliance 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
» Secured body connections
» Grounding lug at the valve body
» Electrically conductive components
Options
» Clean gas version with special connections
» Various diaphragm and seal materials suitable for your medium
» Special connections: Aseptic, ANSI or JIS flanges, NPT, welding spigots;
other connections on request
Technical specification
ATEX marking |
Ex II 2G Ex h IIB 85°C...130°C Gb X |
Kvs values [m3/h] for all body sizes | |||||
0,2 | 0.9 | 1.5 | 2.2 | 2.8 | 3.6 |
Setting ranges [bar] | Diaphragm [mm] | ||
0.002 - 0.004 | 0.003 - 0.015 | ø 500 | |
0.004 - 0.010 | 0.005 - 0.032 | ø 360 | |
0.008 - 0.016 | 0.015 - 0.065 | 0.05 - 0.28 | ø 270 |
0.015 - 0.03 | 0.025 - 0.125 | 0.1 - 0.52 | ø 220 |
Permissible reduction ratio (max. p1/p2) | ||||||
diaphragm [mm] | Kvs value | |||||
0.2 | 0.9 | 1.5 | 2.2 | 2.8 | 3.6 | |
ø 500 | 15000 | 7500 | 4500 | 2200 | 1500 | 1100 |
ø 360 | 8000 | 4000 | 2500 | 1200 | 800 | 650 |
ø 270 | 4000 | 2000 | 1250 | 600 | 400 | 320 |
ø 220 | 2200 | 1100 | 660 | 320 | 210 | 170 |
Technical specification
ATEX marking |
Ex II 2G Ex h IIB 85°C...130°C Gb X |
Kvs values [m3/h] for all body sizes | |||||
0,2 | 0.9 | 1.5 | 2.2 | 2.8 | 3.6 |
Setting ranges [bar] | Diaphragm [mm] | ||
0.002 - 0.004 | 0.003 - 0.015 | ø 500 | |
0.004 - 0.010 | 0.005 - 0.032 | ø 360 | |
0.008 - 0.016 | 0.015 - 0.065 | 0.05 - 0.28 | ø 270 |
0.015 - 0.03 | 0.025 - 0.125 | 0.1 - 0.52 | ø 220 |
Permissible reduction ratio (max. p1/p2) | ||||||
diaphragm [mm] | Kvs value | |||||
0.2 | 0.9 | 1.5 | 2.2 | 2.8 | 3.6 | |
ø 500 | 15000 | 7500 | 4500 | 2200 | 1500 | 1100 |
ø 360 | 8000 | 4000 | 2500 | 1200 | 800 | 650 |
ø 270 | 4000 | 2000 | 1250 | 600 | 400 | 320 |
ø 220 | 2200 | 1100 | 660 | 320 | 210 | 170 |
Technical specification
ATEX marking |
Ex II 2G Ex h IIB 85°C...130°C Gb X |
Kvs values [m3/h] for all body sizes | |||||
0,2 | 0.9 | 1.5 | 2.2 | 2.8 | 3.6 |
Setting ranges [bar] | Diaphragm [mm] | ||
0.002 - 0.004 | 0.003 - 0.015 | ø 500 | |
0.004 - 0.010 | 0.005 - 0.032 | ø 360 | |
0.008 - 0.016 | 0.015 - 0.065 | 0.05 - 0.28 | ø 270 |
0.015 - 0.03 | 0.025 - 0.125 | 0.1 - 0.52 | ø 220 |
Permissible reduction ratio (max. p1/p2) | ||||||
diaphragm [mm] | Kvs value | |||||
0.2 | 0.9 | 1.5 | 2.2 | 2.8 | 3.6 | |
ø 500 | 15000 | 7500 | 4500 | 2200 | 1500 | 1100 |
ø 360 | 8000 | 4000 | 2500 | 1200 | 800 | 650 |
ø 270 | 4000 | 2000 | 1250 | 600 | 400 | 320 |
ø 220 | 2200 | 1100 | 660 | 320 | 210 | 170 |
Materials* | ||
Temperature | 80 °C | 130 °C |
Body, Bonnet, Inter nals, Screws | Stainless steel | Stainless steel |
Adjusting screw | Stainless steel M10 with handwheel made of duroplast | |
Valve seal | FKM | EPDM |
Diaphragm | NBR | EPDM |
Technische Spezifikation
ATEX-Kennzeichnung |
Ex II 2G Ex h IIB 85°C...130°C Gb X |
Kvs-Werte [m3/h] für alle Gehäusegrößen | |||||
0,2 | 0,9 | 1,5 | 2,2 | 2,8 | 3,6 |
Einstellbereiche [bar] | Membrane [mm] | ||
0,002 - 0,004 | 0,003 - 0,015 | ø 500 | |
0,004 - 0,010 | 0,005 - 0,032 | ø 360 | |
0,008 - 0,016 | 0,015 - 0,065 | 0,05 - 0,28 | ø 270 |
0,015 - 0,03 | 0,025 - 0,125 | 0,1 - 0,52 | ø 220 |
Reduktionsverhältnis (max. p1/p2) | ||||||
Membrane [mm] | Kvs-Wert | |||||
0,2 | 0,9 | 1,5 | 2,2 | 2,8 | 3,6 | |
ø 500 | 15000 | 7500 | 4500 | 2200 | 1500 | 1100 |
ø 360 | 8000 | 4000 | 2500 | 1200 | 800 | 650 |
ø 270 | 4000 | 2000 | 1250 | 600 | 400 | 320 |
ø 220 | 2200 | 1100 | 660 | 320 | 210 | 170 |
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