DM 401 Van Giảm Áp DM 401 Mankenber, Mankenber Viet Nam

Van Giảm Áp DM 401 Mankenber, Mankenber Viet Nam 

Model: Valve DM 401

Hãng: MANKENBERG

Kết nối DN: 25 - 250
Áp suất danh nghĩa PN: 16 - 100
Áp suất đầu vào *: lên đến 100 bar
Áp suất đầu ra: 1.5 - 32 bar
Kvs-value: 6 - 360 m³ / h
Nhiệt độ: 500 ° C

Hotline: 0933.911.903

Mail: thietbicongnghiepltt@gmail.com

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Kvs-valueValve for high pressures + high temperature, high flow rates
Pressure reducing valves DM 401

The pressure reducer DM 401

is a diaphragm or piston-controlled spring-loaded proportional control valve with pressure relief for large flow rates at low pressure drops. The valve cone is fitted with a metallic seal.
Technical data
Connection DN 25 - 250
Nominal pressure PN 16 - 100
Inlet Pressure* up to 100 bar
Outlet Pressure 1.5 - 32 bar
Kvs-value 6 - 360 m³/h
Temperature 500 °C
Medium 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 401 pressure reducing valve is a diaphragm or piston-controlled
spring-loaded proportional control valve with pressure relief for large flow
rates at low pressure drops. The valve cone is fitted with a metallic 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).
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 II.

Standard

» Balanced cone for controlling the outlet pressure indipendently from the
inlet pressure
» Sense line connection
» Open spring

Options

» Polished version for food, pharmaceutical and superclean applications
» surface roughness: Ra ≤ 0.25/ ≤ 0.4/ ≤ 0.8 µm
» Diaphragm protection by PTFE foil
» Soft seal
» Electro-pneumatic actuation
» 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 DIN flanges, NPT, welding spigots; other connections on request
» Special versions on request

​

Technical specification

K vs values [m3/h]
nominal diameter	DN	25	32	40	50	65	80
K vs value	m3/h	6	11	16	25	42	6

K vs values [m3/h]
nominal diameter	DN	100	125	150	200	250
K vs value	m3/h	80	120	170	230	360

Setting ranges [bar] diaphragm controled
1.5 - 6	6 - 13

Setting ranges [bar] piston controlled
12 - 18	16 - 24	24 - 32

Materials DM 401 PN 16
Body	Cast steel
Bottom part	Cast steel
Spring	Spring steel C
Internals	on request
Diaphragm	CR

Materials DM 401 PN 25 - 40
Temperature	300 °C	350 °C	400 °C
Body	Cast steel	Cast steel	GS 17 CrMo 55
Bottom part	Cast steel	Cast steel	Cast steel
Mid section	-	-	GS 17 CrMo 55
Spring	Spring steel C	Spring steel C	Spring steel C
Internals	on request
Diaphragm	CR	CR	CR
O-ring	NBR	NBR	NBR

Materials DM 401 PN 63 - 100
Temperature	350 °C	400 °C	500 °C
Body	Cast steel	GS 17 CrMo 55	GS 17 CrMo 55
Bottom part	Cast steel	Cast steel	Cast steel
Mid section	-	GS 17 CrMo 55	GS 17 CrMo 55 or 10 CrMo 9-10
Spring	Spring steel	Spring steel C	Spring steel C
Internals	on request
Diaphragm	CR	CR	CR
O-ring	NBR or EPDM	NBR or EPDM	NBR or EPDM