Burkert Type 8750 - Manual (Page 9)

I NSTALLATION
8750 - 7
Technical data of the FMR Type 8750
Valve housing material Stainless steal-investment casting 316L
Flange material stainless steel 1.4301
Actuator material polyamide (PA)
TopControl housing material Noryl (PPE/PA)
Packed gland (with silicone grease) PTFE-rings (with spring compensation)
Control plug parabolic geometry for equipercentile characteristic
Seat reduction (orifices) various Kvs-values for each connection size
Intake and outlet sections to EN ISO 5167-1
Other parts contacting media stainless steel 1.4571
Media
Standard air and other gases
on request steam and liquids
Media temperature 0 to +80 °C
Ambient temperature -10 to +50 °C
Media pressure 0 to 6/10 or 16 bar
(depending on the pressure sensor range)
Control medium instrument air to DIN ISO 8573-1
Dust content • max. 40 µm particle size
Particle density • max. 10 mg/m³
Pressure dew point • -20 °C
Oil concentration • max. 25 mg/m³
Intrinsic air consumption 0 l/min
Control air temperature 0 to +50 °C
Control air pressure 5.5 to 7 bar (DN15 to DN 65)
5 to 6 bar (DN80 and DN100)
Components
Control valve Type 2712, SFA or SFB
Pressure sensors Type 8323
TopControl Continuous Type 8630 with process controller
Temperature transmitter e.g. Type 1571, 0 to +150 °C
Pressure measurement range 0 to 6/10/16 bar, other ranges on request
Operating voltage 24 V DC
Residual ripple 10 %, not industrial DC!
Electrical connection
Operating voltage circular connector, male, M12
External signals circular connector, male, M16
Setpoint specification 0/4 to 20 mA or 0 to 5/10 V
Type of protection IP65 to EN 60529
Display LC display, 8-digit
Operating panel 3 function keys
Options • binary input
• analog feedback
• binary outputs (alarm)
• bus communication (ProfibusDP or DeviceNet)
Process connections flange to DIN EN 1092-1, ANSI, JIS; welding ends
to ISO 4200, DIN 11850 S2, BS 4825, ASME
Nominal diameters DN15 to DN100, in the usual steps
Sensor assembly P1, P2, T G 1/2 sleeve in the FMR tube
Measurement section to DIN EN 60534-2-3