Page 285 - Bürkert

2/2-way Angle-Seat Control Valve CLASSIC with positioner,
threaded version

System 8802-YC-I Continuous Classic • Compact design with stainless steel

housing
• Robust and affordable option with long
service life
• Excellent control performance com-
bined with high flow capacity

The 2702 Control Valve consists of an 316L angle seat body with a Envelope Dimensions [mm] (see datasheet for details)
rugged pneumatic piston actuator. The parabolic trim results in a flow

characteristic approximately 35% larger than conventional control valves. Valve system Continuous Classic Type 8802-YC-
When combined with the 8692 TopControl, a unique control valve system I with Positioner TopControl Type 8692
is formed which can be operated as a simple, accurate positioner for flow
rate, temperature or pressure.
Threaded body
Technical Data
Material
Body (Type 2702) Cast stainless steel 316L (conform to 1.4409)
Sealing (Type 2702) Stainless steel/stainless steel
Actuator (Type 2702) PA (polyamide) (PPS on request)
Body (Type 8692) PPS, Stainless steel
Cover (Type 8692) PC
Seal (Type 8692) EPDM
Sealing Stainless steel/stainless steel
Seat leakage
acc. to IEC 534-4/EN 1349 Shut-off class IV for St.st./St.st.
Viscosity Max. 600 mm /s
2
Packing gland PTFE V-rings (silicon grease) with spring com-
pensation
Nominal pressure PN25 (body) HM
Temperature BM
Medium -10 °C to +180 °C
Ambient 0 °C to +55 °C, actuators 80 to 125 mm
Control medium Compressed air
Pilot pressure 5.5 to 7 bar
Pilot air ports Push-in connector (Ø 6 mm and 1/4" tube)
Flow direction Below seat
Control ratio (Kvs/Kv0) 50:1
Operating voltage 24 VDC ±10%
Setpoint 0/4 to 20 mA and 0 to 5/10 V

Note: For more technical data see Type 8692

Port size Actuator HM BM
[mm] [mm] [mm] G, NPT and Rc thread
15 80 302 326
20 80 302 329
25 80 307 337
32 80 314 349
40 100 363 398
50 100 375 420

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