- Van Điều Khiển Áp Suất RP 824
- Model: RP 824
- Hãng: MANKENBERG
Kết nối DN: 100 - 800
Áp suất danh định PN: 10 - 25
Áp suất đầu vào: 2 - 20 bar
Áp suất chênh lệch tối thiểu: 2 bar
Kvs-Value 60 - 2100 m3/h
Nhiệt độ 130°C-
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Pressure Control Valves
Back Pressure Regulators RP 824
Pilot-operated Back Pressure Regulator
Technical Data
Connection DN 100 - 800
Nominal Pressure PN 10 - 25
Inlet Pressure 2 - 20 bar
Differential Pressure min. 2 bar
Kvs-Value 60 - 2100 m3/h
Temperature 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 824 back pressure regulator 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 inlet pressure is above the set pressure the pilot valve is kept
open by its control mechanism. 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 pilot pressure and
closing force of the spring and opens the main valve.
When the inlet 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 inlet pressure falls below 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.
The valve is piped internally. The pulse lines must 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.
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 up to PN 100
» Special connections: ANSI or JIS flanges, other connections on request
» Special versions on request
Operating instructions, know how and safety instructions must be
observed. The pressure has always been indicated as overpressure.
We reserve the right to alter technical specifications without notice.
| Kvs-Values [m3/h] | |||||
| nominal 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 | ||
| 2 - 5 | 4 - 12 | 10 - 20 |
| PN 10 | PN 16 | PN 25 |
| 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 |
| Sense Line | ||
| Throttle Unit |
