RP 814 Van Giảm Áp RP 814 Mankenber, Mankenber Viet Nam

RP 814  Van Giảm Áp RP 814  Mankenber, Mankenber Viet Nam 

Model: RP 814 

Hãng: MANKENBERG

Kết nối DN: 100 - 800
Áp suất danh nghĩa PN: 16 - 25
Áp suất đầu vào: lên đến 25 bar
Áp suất đầu ra: 1-20 bar
Áp suất chênh lệch: min. 2 bar
Kvs-value: 60 - 2100 m³ / h
Nhiệt độ: 130 ° C

Hotline: 0933.911.903

Mail: thietbicongnghiepltt@gmail.com

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PRESSURE CONTROL
Pressure reducing valve RP 814
Pilot-operated pressure reducing valve

Technical data

Connection DN	100 - 800
Nominal pressure PN Inlet Pressure	16 - 25 up to 25 bar
Outlet Pressure Differential pressure Kvs-value Temperature	1 - 20 bar min. 2 bar 60 - 2100 m³/h 130 °C
Medium	liquids

Description

Self-acting back pressure regulators are simple control valves offering accurate control while being easy to install and maintain. They control the pressure upstream of the valve without requiring pneumatic or electrical control
elements.
The RP 814 pressure reducing valves are pilot-controlled control valves of
tubular design consisting of a main valve, a pilot valve connected with the
main valve via pipes and a restrictor assembly with built-in strainer. The
valve cone is fitted with a metallic seal.
When the pipeline is depressurised the main valve is kept closed by a preloaded spring. To open the valve a pressure difference (p1 – p2) of at least 2
bar is required.
When the outlet pressure is below the set pressure the pilot valve is kept
open by its spring. The control medium can flow towards the valve outlet.
Restrictor D1 produces a pressure drop causing the outlet pressure to be almost equal to the pilot pressure in the main valve. The inlet pressure overcomes the outlet pressure and closing force of the spring and opens the
main valve.
As soon as the outlet pressure has reached the set pressure, the pilot valve
restricts the flow. This causes the pilot pressure to rise and push the main
valve piston into a controlling position in which opening and closing forces
are in balance.
When the outlet pressure exceeds the set pressure the pilot valve closes.
The pilot pressure is equal to the inlet pressure. The forces acting on the piston are in equilibrium and the main valve is kept closed by its spring.
The restrictors are used to optimise the control characteristics. The bypass
line around D2 which is fitted with a non-return valve, ensures quick closing.
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.

Standard

» Pilot valve made of stainless steel
» Throttle block with integrated strainer and throttle valves completely
made of stainless steel
» Internal piping made of stainless steel
Options
» Nominal pressure level
» Special connections:
ANSI or JIS flanges, other connections on request
» Special versions on request

Technical specification

Kvs values [m3/h]
nomial diameter DN
100	125	150	200	250	300
60	100	120	180	250	400

Kvs values [m3/h]
nominal diameter DN
350	400	450	500	600	700	800
600	800	1100	1200	1800	2000	2100

Setting ranges [bar], nominal pressure
1 - 5	4 - 12	10 - 20
PN 16 - 25/10	PN 16 - 25/25	PN 16 - 25/40

Materials
Temperature	80 °C	130 °C
Body	steel optional stainless steel welded
Internals	stainless steel	stainless steel
Valve seal	stainless steel	stainless steel
O-ring	NBR	EPDM
Pilot valve	stainless steel	stainless steel
Sence line
Throttle unit

Dimensions [mm]
size	nominal diameter DN
100	125	150	200	250	300	350	400	450	500	600	700	800
A*	300	325	350	400	450	500	550	600	650	700	800	900	1000
B max.	200	200	220	240	270	300	320	350	380	400	450	500	550
E max.	270	270	270	270	270	270	270	270	270	270	270	270	270

*overall length tolerances in acc. with DIN EN 558

Weights [kg]
nominal pressure	nominal diameter DN
100	125	150	200	250	300	350	400	450	500	600	700	800
PN 16	60	60	65	75	120	150	190	240	300	360	420	480	540
PN 25	75	75	80	90	135	165	220	280	360	400	460	580	720

Customs tariff number

84811019