Page 284 - Bürkert

Envelope Dimensions [mm] (see datasheet for details) Flow curve and description

Valve system Classic Type 8802-GB-I Kv/Kvs [%]
100
with positioner TopControl Type 8692
90
DN10-65 DN65-100 80
ø 91 ø 91 ø 91 70
60
ø 91 ø 91 ø 91 50
40
30 System 8802-GB-I
20 Continuous Classic
10
0
0 10 20 30 40 50 60 70 80 90 100
Stroke [%]
HG For detailed values please see table on next page
HG HG
HG HG HG Remarks on the flow characteristic
• Equipercentile parabolic plug for the orifices DN8...DN100
• Linear plug for the orifices DN4 and DN6
• Flow characteristic runs within DIN/IEC 534-2-4
• Theoretical control ratio (Kvs/Kvo):
50:1 for the orifices DN8...DN100
25:1 for the orifice DN6
10:1 for the orifice DN4
• KVR value at 5% of stroke for DN > 10 mm
KVR value at 10% of stroke for DN ≤ 10 mm
Port size Actuator HG (KVR value = smallest Kv value at which the gradient tolerance to DIN/IEC 534-2-4 is still
[mm] [inch] Ø [mm] [mm] complied with)
10 3/8" 80 414
15 1/2” 80 414
20 3/4” 80 409
25 1” 80 412
32 1 1/4” 100 496
40 1 1/2” 100 501
50 2” 125 538
65 2 1/2” 125 567
175 634
80 3” 175 642
225 637
100 4” 175 652
225 647

Ordering Chart

Pressure range Item no.
Orifice Actuator size Kv value water
Control function Port connection to +180 °C Seal material )
1
[mm] Ø [mm] [m /h]
3
[bar] steel
8802-GB-I (Type 2712 and Positioner 8692)
A 2/2-way valve 15 Flange 80 4.3 16 229 474
normally closed (NC) DIN EN 1092-1
25 Flange 80 12 16 229 475
DIN EN 1092-1
32 Flange 100 17.8 16 229 476
DIN EN 1092-1
50 Flange 125 37 16 229 477
DIN EN 1092-1
65 Flange 125 52 10 229 481
DIN EN 1092-1
100 Flange 225 140 10 229 487
DIN EN 1092-1

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