DM 701 Van Giảm Áp DM 701 Mankenber, Mankenber Viet Nam

DM 701 Van Giảm Áp DM 701 Mankenber, Mankenber Viet Nam 

Model: Valve DM 701

Hãng: MANKENBERG

Kết nối DN: 15-50
Áp suất danh nghĩa PN: 40
Áp suất đầu vào lên đến: 40 bar
Áp suất đầu ra: 0,02 - 12 bar
Kvs-value: 5 - 22 m³ / h
Nhiệt độ: 190 ° C

Hotline: 0933.911.903

Mail: thietbicongnghiepltt@gmail.com

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PRESSURE CONTROL
Pressure reducing valve DM 701
High pressure valve for small flow rates

Technical data

Connection DN 15 - 50
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 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 701 pressure reducing valve is a piston controlled, spring loaded
proportional control valve for small capacities with high 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 III
or V, optional IV.

Standard

» Open spring
» Sense line connection

Options

» Mid section for higher temperatures (400 - 500 °C)
» Various diaphragm and seal materials suitable for your medium
» Special versions on request

Technical specification

Kvsvalues [m3/h]
seat	nominal diameter DN
15	20	25	32	40	50
I	0.2	0.25	0.25	0.4	0.4	1
II	0.9	0.9	0.9	2.5	2.5	3.5
III	1.8	2	2.2	3.9	3.9	5.5

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

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

Materials PN 16
Temperature	300°C
Body, bottom part	cast steel
Spring	spring steel C
Internal parts, piston	on request
O-ring	NBR or EPDM

Materials PN 25 - 40
Temperature	300°C	350°C	400°C
Body, bottom part	cast steel	cast steel	cast steel
Mid section	-	-	GS 17 CrMo 55
Spring	spring steel C	spring steel C	spring steel C
Internal parts, piston	on request
O-ring	NBR or EPDM	NBR or EPDM	NBR or EPDM

Materials PN 63 - 315
Temperature	350°C	400°C	500°C
Body, bottom part	C 22 N	C 22 N	10 CrMo 9-10
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 C	spring steel C	spring steel C
Internal parts, piston	on request
O-ring	NBR or EPDM	NBR or EPDM	NBR or EPDM

Dimensions [mm]
nominal pres sure	size	nominal diameter DN
15	20	25	32	40	50
PN 16 - 40	A*	130	150	160	180	200	230
PN 63 - 160	210	230	230	260	260	300
PN 250 - 315	210	260	260	300	300	350