德国进口 burkert宝德 比例控制电磁阀 2871 A 替代2824 A

睿德恒实业（深圳）有限公司代理销售德国进口burkert 两位两通 比例调节电磁阀 2871，代替停产比例调节电磁阀2824

Type 2871 - Standard proportional valve

• Excellent range (1:200)
• Very good response
• Compact valve design
• Orifice sizes 0.05 ... 2.0 mm
• Port connection 1/8” or sub-base

The direct-acting solenoid control valve Type 2871
(20mm installation width) is used as the regulating
unit in control loops. Due to an elastomeric seat
seal the valve closes tight (integrated shut-off
function) ,up to the DN specifi c nominal pressure,
see ordering chart on page 3.
The plunger of the valve is assembled frictionless,
which leads to an extraordinary adjustment
characteristic. This valve is particularly
suitable for demanding control tasks (high
control range, dry gases, etc.).

Technical Data - Valve
Body material Brass, stainless steel
Seal material FKM, EPDM on request
Medium Neutral gases, liquids on request
Pressure range 0 ... 12 bar 2) – also applicable for technical vacuum
Medium temperature -10 ... +90 °C
Ambient temperature max. +55 °C
Power supply 24 V DC
PWM frequency 1500 Hz
Max. coil current 220mA 3)
Power consumption 2 W (up to DN 0,6), 5 W (from DN 0,8)
Duty cycle 100% continuously rated
Port connection Sub-base , G 1/8, NPT 1/8, others on request
Electrical connection Cable plug Type 2507, Form B industrial standard
Installation As required, preferably with actuator in upright position
Typical control data 4)
at PWM control
Hysteresis
Repeatability
Sensitivity
Span
Response time (10 -90%)
< 5%
< 0.25% FS5)
< 0.25% FS – <0.1% FS with DN <0.8 mm 5)
1:200 (DN0.8-2), 1:500 (DN0.05-0.6)
< 15 ms
Protection class valve IP65

Circuit
function
Orifi ce [mm]
Port
connection
kvs value
water
[m³/h] 9)
QNn value
[l/min] 10)
Nominal
pressure 11)
[bar]
Max.
differential
pressure
[bar]
Item no.
Brass
Item no.
Stainless
steel
A
A
P
0.05 Flansch FK01 0.00006 0.06 10 10 254 985 254 986
G 1/8 0.00006 0.06 10 10 254 443 254 444
NPT 1/8 0.00006 0.06 10 10 254 968 254 971
0.1 Flansch FK01 0.00025 0.27 10 10 254 987 254 988
G 1/8 0.00025 0.27 10 10 254 446 254 447
NPT 1/8 0.00025 0.27 10 10 254 972 254 973
0.2 Flansch FK01 0.001 1 10 10 254 989 254 990
G 1/8 0.001 1 10 10 254 448 254 450
NPT 1/8 0.001 1 10 10 254 974 254 975
0.3 Flansch FK01 0.002 2 10 10 254 991 254 992
G 1/8 0.002 2 10 10 254 451 254 452
NPT 1/8 0.002 2 10 10 254 977 254 978
0.4 Flansch FK01 0.004 4 8 8 254 993 254 994
G 1/8 0.004 4 8 8 254 453 254 454
NPT 1/8 0.004 4 8 8 254 979 254 980
0.6 Flansch FK01 0.01 11 6 6 254 995 254 996
G 1/8 0.01 11 6 6 254 455 254 457
NPT 1/8 0.01 11 6 6 254 981 254 982
0.8 sub-base FK01 0.018 19 12 6 235 992 235 993
G 1/8 0.018 19 12 6 235 994 235 995
NPT 1/8 0.018 19 12 6 235 996 235 997
1.0 sub-base FK01 0.027 29 10 5 235 998 235 999
G 1/8 0.027 29 10 5 236 000 236 001
NPT 1/8 0.027 29 10 5 236 002 236 003
1.2 sub-base FK01 0.038 41 8 4 236 004 236 260
G 1/8 0.038 41 8 4 236 261 236 262
NPT 1/8 0.038 41 8 4 236 263 236 264
1.6 sub-base FK01 0.055 59 6 3 236 265 236 266
G 1/8 0.055 59 6 3 236 267 236 268
NPT 1/8 0.055 59 6 3 236 269 236 270
2.0 sub-base FK01 0.090 97 3 1.5 236 271 236 272
G 1/8 0.090 97 3 1.5 236 273 236 274
NPT 1/8 0.090 97 3 1.5 236 275 236 276
Ordering chart

All valves with FKM seal

A 0.8 G 1/8 0.018 19 12 238 928 238 930
1.0 G 1/8 0.027 29 10 238 936 238 931
1.2 G 1/8 0.038 41 8 238 937 238 932
1.6 G 1/8 0.055 59 6 238 939 238 933
2.0 G 1/8 0.090 97 3 238 940 238 934