- Van Giảm Áp RP 814
- 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-
Bảng giá sản phẩm
Số lượng Giá bán (VNĐ) 1+ Liên hệ 5+ Liên hệ 10+ Liên hệ 15+ Liên hệ Chưa bao gồm VAT
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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
.PNG)
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 |
