ZM-R
Válvula redutora de pressão, dispositivo para tubulaçãoVálvula redutora de baixa pressão
Features
Large Diaphragm Area
to increase the closing force
Stainless Steel or Hastelloy
all function-relevant and
product
Product
Includes equipment, protective systems, devices, components and combinations of these.
-contacting parts are made of stainless steel or Hastelloy
Simple Adjustment of Set Pressure
Any Installation Position
Exteral Energy Supply
no external energy supply needed
High Flow Capacity
reduces costs through the use of smaller valves
Guided Valve Pallet
valve pallet
Valve pallet
Valve pallet is the generic term for the assembly that rests on the valve seat.
is guided inside the
housing
Housing
A housing is a solid shell, which surrounds a content, either protecting the content from external influences, or protecting the environment from the content.
to protect against harsh weather conditions
Precision
high precision
Used in Explosion Hazardous Areas
Sturdy Housing Design
(PN 10 and PN 16)
Function and Description
Highly Developed Low-Pressure Reducing Valve
The blanketing valve type ZM-R is a highly developed low
pressure reducing valve
Pressure reducing valve
A pressure reducing valve reduces a higher, fluctuating inlet pressure to a lower, constant outlet pressure.
. This valve is typically used to inert or blanket tanks, vessels, or other process systems with nitrogen or other blanketing gases by controlling the
tank pressure
Tank pressure
Tank pressure is the pressure within a tank.
to ist desired value. High nitrogen or blanketing gas supply pressures up to 16 bar / 232 psi are safely reduced down to only a few mbar / inch W.C..
Membrane-Controlled and Spring-Loaded Proportional Regulator
The ZM-R low pressure reducing valve is a direct acting, one stage pressure control
device
Device
A device is a pipe component that influences the media flow by opening, closing, or partially shutting off the flow channel or by dividing or mixing the media flow.
. It is designed as a
diaphragm
Diaphragm
A diaphragm is a thin layer of material, which has a large surface area.
controlled, spring-loaded proportional acting valve. The valve controls the tank pressure by increasing flow as the tank pressure drops. This means that the mass flow through the valve depends on the pressure differential of the set pressure to the actual tank pressure. When the actual tank pressure reaches the set pressure, the control unit closes, and there is no flow.
For Precise Pressure Control
At the control diaphragm, (which can be made from PTFE or Viton), the tank pressure (P2) is balanced with the adjustment spring and the supply pressure (P1). In a depressurized tank, the adjustment spring holds the valve pallet in the fully open position. As the tank pressure increases, the valve pallet moves toward the seat, and the mass flow is reduced. When the desired tank pressure is reached, the valve will close.
Precise Pressure Control up to -200 mbar
If the tank pressure decreases, the valve will open. If the system is operated in a
vacuum
Vacuum
Vacuum is the pressure in an enclosed space that is lower than the ambient pressure.
mode, vacuum pressures down to -200 mbar /-80 inch W.C. (relative pressure) can be achieved.
Product Data and Features
Tabela de dimensões
Para selecionar o diâmetro nominal (DN), veja as tabelas de vazão volumétrica nas páginas seguintes
| DN | 15 / ½" | 25 / 1" | 50 / 2" | 100 / 4'' | |
| a | 214 | 214 | – | – | |
| b | 168 | 168 | – | – | |
| c* | – | – | 214 / 360 | 360 / 600 | |
| d | DIN | 150 | 160 | 150 | 250 / 250 |
| ANSI | 180 | 160 | 150 | 250 / 250 | |
| e | 214 | 214 | 230 | 275 / 310 | |
| f | 87 | 87 | 103 | 148 / 155 |
Dimensões em mm
* dependendo do tamanho do diafragma
Tabela de dimensões
Selection of valve seat Valve seat The valve seat is a component on which the valve pallet rests when the valve is closed. depending on flow rate
| Diâmetro nominal da válvula | Sede em mm | Kvs* | Número |
| 25 / 1'' | 2,0 | 0,15 | 20 |
| 4,5 | 0,60 | 45 | |
| 7,5 | 1,20 | 75 | |
| 10,0 | 1,70 | 100 | |
| 14,0 | 2,40 | 140 | |
| 50 / 2'' | 14,0 | 2,80 | 140 |
| 18,0 | 6,80 | 180 | |
| 26,0 | 14,50 | 260 | |
| 100 / 4'' | 42,0 | 33,50 | 420 |
| 55,0 | 68,00 | 550 |
* 1 Kvs = 0,86 Cv; 1 Cv = 1,17
Seleção do material do corpo
| Execução | S | H | |
| Corpo | Aço inoxidável | Hastelloy | |
| Sede de válvula | Aço inoxidável | Hastelloy | |
| Disco da válvula | Aço inoxidável | Hastelloy | |
| Vedação da sede da válvula | FFKM | FFKM | |
| Vedação | PTFE | PTFE | |
| Diafragma P | PTFE | PTFE | identificação P |
| Alternativa: diafragma V | Viton | - | identificação V |
Os corpos também podem ser polidos eletro-quimicamente no interior. Materiais especiais sob solicitação
Tipo de conexão
| FD | DIN 2501, PN 16 | DIN |
| FA | ASME B16.5 CL 150 R.F. | ASME |
| G | Rosca | G ou NPT |
Outras conexões sob solicitação
Flow rates for P2 pressure range (Europe - metric units)
ZM-R 15 / ZM-R 25: flow rate (air, 0°C) at ∆P = P1 - P2 and valve full open
| P 1 (bar) | 0,15 | 0,25 | 0,40 | 0,65 | 1,00 | 1,50 | 2,50 | 4,00 | 6,00 | 10,00 | Sitz-Ø |
| P 2 (mbar) | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [mm] |
| 10 | 6,2 12,4 17,5 24,8 | 8,1 16,2 23,0 32,5 | 10,3 20,7 29,3 41,4 | 13,2 26,5 37,6 53,1 | 16,5 33,0 46,7 66,0 | 20,6 41,2 58,4 82,4 | 28,8 57,6 81,6 115,2 | 41,1 82,2 116,5 164,5 | 57,5 115,0 163,0 230,1 | 90,3 180,7 256,0 361,4 | Ø4,5 Ø7,5 Ø10,0 Ø14,0 |
| 20 | 6,0 12,0 17,0 24,0 | 7,9 15,9 22,6 31,9 | 10,2 20,5 29,1 41,1 | 13,2 26,4 37,5 52,9 | 16,5 33,0 46,7 66,0 | 20,6 41,2 58,4 82,4 | 28,8 57,6 81,6 115,2 | 41,1 82,2 116,5 164,5 | 57,5 115,0 163,0 230,1 | 90,3 180,7 256,0 361,4 | Ø4,5 Ø7,5 Ø10,0 Ø14,0 |
| 100 | 3,8 7,7 10,9 15,4 | 6,7 13,4 18,9 26,8 | 9,4 18,9 26,8 37,9 | 12,8 25,6 36,3 51,3 | 16,4 32,8 46,5 65,6 | 20,6 41,2 58,4 82,4 | 28,8 57,6 81,6 115,2 | 41,1 82,2 116,5 164,5 | 57,5 115,0 163,0 230,1 | 90,3 180,7 256,0 361,4 | Ø4,5 Ø7,5 Ø10,0 Ø14,0 |
| 200 | - - - - | 4,0 8,0 11,4 16,1 | 8,00 16,1 22,9 32,3 | 12,1 24,2 34,3 48,4 | 16,1 32,3 45,8 64,6 | 20,6 41,2 58,4 82,4 | 28,8 57,6 81,6 115,2 | 41,1 82,2 116,5 164,5 | 57,5 115,0 163,0 230,1 | 90,3 180,7 256,0 361,4 | Ø4,5 Ø7,5 Ø10,0 Ø14,0 |
| 500 | - - - - | - - - - | - - - - | 7,8 15,6 22,1 31,2 | 14,2 28,5 40,4 57,0 | 20,1 40,3 57,1 80,7 | 28,8 57,6 81,6 115,2 | 41,1 82,2 116,5 164,5 | 57,5 115,0 163,0 230,1 | 90,3 180,7 256,0 361,4 | Ø4,5 Ø7,5 Ø10,0 Ø14,0 |
Flow rates for P2 pressure range (Europe - metric units)
ZM-R 50: flow rate (air, 0°C) at ∆P = P1 - P2 and valve full open
| P 1 (bar) | 0,15 | 0,25 | 0,40 | 0,65 | 1,00 | 1,50 | 2,50 | 4,00 | 6,00 | 10,00 | Sitz-Ø |
| P 2 (bar) | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [mm] |
| 10 | 28,9 70,3 150,0 | 37,9 92,1 196,5 | 48,3 117,4 250,4 | 61,9 150,4 320,8 | 77,0 187,1 399,1 | 96,2 233,6 498,3 | 134,5 326,6 696,5 | 191,9 466,1 994,0 | 268,5 652,1 1390 | 421,6 1024 2183 | Ø14,0 Ø18,0 Ø26,0 |
| 20 | 28,0 68,1 145,3 | 37,3 90,6 193,3 | 47,9 116,5 248,4 | 61,7 150,0 319,9 | 77,0 187,1 399,0 | 96,2 233,6 498,3 | 134,5 326,6 696,5 | 191,9 466,1 994,0 | 268,5 652,1 1390 | 421,6 1024 2183 | Ø14,0 Ø18,0 Ø26,0 |
| 100 | 18,0 43,8 93,5 | 31,2 75,9 162,0 | 44,2 107,4 229,1 | 59,9 145,5 310,2 | 76,6 186,1 396,9 | 96,2 233,6 498,3 | 134,5 326,6 696,5 | 191,9 466,1 994,0 | 268,5 652,1 1390 | 421,6 1024 2183 | Ø14,0 Ø18,0 Ø26,0 |
| 200 | - - - | 18,8 45,8 97,6 | 37,7 91,6 195,3 | 56,5 137,4 293,0 | 75,4 183,2 390,6 | 96,2 233,6 498,3 | 134,5 326,6 696,5 | 191,9 466,1 994,0 | 268,5 652,1 1390 | 421,6 1024 2183 | Ø14,0 Ø18,0 Ø26,0 |
| 500 | - - - | - - - | - - - | 36,4 88,6 188,9 | 66,6 161,7 344,9 | 94,1 228,7 487,8 | 134,5 326,6 696,5 | 191,9 466,1 994,0 | 268,5 652,1 1390 | 421,6 1024 2183 | Ø14,0 Ø18,0 Ø26,0 |
Flow rates for P2 pressure range (Europe - metric units)
ZM-R 100: flow rate (air, 0°C) at ∆P = P1 - P2 and valve full open
| P 1 (bar) | 0,15 | 0,25 | 0,40 | 0,65 | 1,00 | 1,50 | 2,50 | 4,00 | 6,00 | 10,00 | Sitz-Ø |
| P 2 (bar) | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [Nm³ / h] | [mm] |
| 10 | 346 703 | 453 921 | 587 1174 | 741 1504 | 922 1871 | 1151 2336 | 1609 3266 | 2296 4661 | 3212 6512 | 5045 10241 | Ø42,0 Ø55,0 |
| 20 | 335 681 | 446 906 | 574 1165 | 739 1500 | 921 1871 | 1151 2336 | 1609 3266 | 2296 4661 | 3212 6512 | 5045 10241 | Ø42,0 Ø55,0 |
| 100 | 216 438 | 374 759 | 529 1074 | 716 1455 | 917 1861 | 1151 2336 | 1609 3266 | 2296 4661 | 3212 6512 | 5045 10241 | Ø42,0 Ø55,0 |
| 200 | - - | 225 458 | 451 916 | 676 1374 | 902 1832 | 1151 2336 | 1609 3266 | 2296 4661 | 3212 6512 | 5045 10241 | Ø42,0 Ø55,0 |
| 500 | - - | - - | - - | 436 886 | 796 1617 | 1127 2287 | 1609 3266 | 2296 4661 | 3212 6512 | 5045 10241 | Ø42,0 Ø55,0 |
Flow rates for P2 vacuum range (Type ZM-R/N) upon request
Versão e especificação
Estão disponíveis duas versões:Válvula redutora de pressão para pressão na versão básicaZM-R –
Válvula redutora de pressão para vácuo na versão básicaZM-R / N
Outros dispositivos especiais sob solicitação
Geralmente deve-se observar a contrapressão nas válvulas de tubulação, que tem influência na pressão de ajuste e no comportamento de abertura.
Ajustes de pressão
| Pressão de admissão: | +16 bar | |
| +6424 inch W.C. | ||
| Pressão de ajuste na função de pressão: | +500 mbar | |
| +200 inch W.C. | ||
| Pressão de ajuste na função de vácuo: | -200 mbar | |
| -80 inch W.C. |
Applications