DM 620 Van Giảm Áp ,DM 620 Mankenber Viet Nam

DM 620  Van Giảm Áp ,DM 620 Mankenber Viet Nam 

Model: DM 620

Hãng: MANKENBERG

Kết nối DN: 15-50 
Kết nối G: 1/2 - 2
Áp suất danh nghĩa PN: 16 - 315
Áp suất đầu vào: lên đến 315 bar
Áp suất đầu ra: 2 - 160 bar
Kvs-value: 0,4 - 10 m³ / h
Nhiệt độ: 200 ° C

Hotline: 0933.911.903

Mail: thietbicongnghiepltt@gmail.com

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PRESSURE CONTROL
Pressure reducing valve DM 620
High pressure valve for medium and high flow rates

Technical data

Connection DN 15 - 50
Connection G 1/2 - 2
Nominal pressure PN 16 - 315
Inlet Pressure up to 315 bar
Outlet Pressure 2 - 160 bar
Kvs-value 0.4 - 10 m³/h
Temperature 200 °C
Medium liquids and gases
*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 620 pressure reducing valves are diaphragm-controlled springloaded and balanced proportional control valves for high inlet and outlet
pressures. They can be supplied with three types of connections: sockets,
flanges or welding spigots. Each size of valve may be fitted with three different seats. The valve cone may be fitted with a soft or 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.
Der max. zulässige Hinterdruck beträgt - sofern nicht anders angegeben -
das 1,5-fache des Einstelldruckes.
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

» Balanced cone for controlling the outlet pressure indipendently from the
inlet pressure

Options

» pressure gauge connection
» hard-faced valve cone and seat
» 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 materials such as Duplex, Superduplex, Hastelloy® or titanium,
others on request
» special connections: ANSI or JIS flanges, NPT, welding spigots; other
connections on request
» special versions on request

Materials
Temperature	80 °C.	130 °C.	200 °C.
Body	G 1/2 - 1, DN 15 - 25 = C-steel G 1 1/4 - 2, DN 32 - 50 = steel welded optional stainless steel for all nominal diameters
Bonnet	steel welded optional stainless steel
Internal parts	stainless steel
Spring	spring steel C optional stainless steel
Soft seal	EU	EPDM optional FKM or PTFE	-
Metallic seal	stainless steel	stainless steel	stainless steel
Diaphragm	EPDM	EPDM optional FKM	-
Protection foil	PTFE (option)	PTFE (option)	-
O-ring for piston	EPDM	EPDM optional FKM or PTFE	FEPM optional PTFE
Bellow	stainless steel	stainless steel	stainless steel

Dimensions [mm]
size	nominal diameter
G 1/2	G 3/4 - 1	G 1 1/4 - 1 1/2	G 2
DN 15	DN 20 - 25	DN 32 - 40	DN 50
A*	140	170	250	250
A1	220	220	280**	300**
A2	220	220	acc. to DIN 3202 - S14
B	80	80	110	110
C	< 520	< 520	< 800	< 800

A2 = Welding ends
*overall length tolerances in acc. with DIN EN 558
** Outlet pressure ≥ PN 63 on request

Weights [kg] sleeve connection, all others on request
nominal diameter
G 1/2	G 3/4	G 1	G 1 1/4	G 1 1/2	G 2
13	14	15	21	21	21

Customs tariff number

84811019