Flowserve NRG 16-51 - Manual (Page 6)

6
NRG 16-51, NRG 17-51, NRG 19-51
Technical Data
Service pressure
NRG 6-5: PN 40, 3 bar at 38 °C
NRG 7-5: PN 63, 46 bar at 60 °C
NRG 9-5: PN 60, 00 bar at 3 °C
Mechanical connection
Screwed ¾" to EN ISO 8-
Materials
Sheath .430 X5 CrNi8-0
Screw-in body .457, X6CrNiMoTi7--
Measuring electrode .457 X6CrNiMoTi7--
Electrode rod .440 X5CrNiMo7--
Electrode insulation PEEK
NRG ...-5: Four-pole connector: polyamid (PA)
NRG ...-5F: Terminal box 3.6 G AlSi8Cu3
Lengths available
500 mm, 000 mm, 500 mm
Electrical connection
NRG ...-5: Four-pole connector, cable glands M 6
NRG ...-50F: Terminal box made from aluminium, cable gland M 0
Protection
IP 65 to EN 6059
Max. admissible ambient temperature
70 °C
Weight
Approx. . kg (without extension)
(NRG 6-5, NRG 7-5, NRG 9-5)
Approx. . kg (without extension)
(NRG 6-5F, NRG 7-5F, NRG 9-5F)
Approvals
EC Prototype approval PED Pressure Equipment Directive 97/3/EC, EN 95-, EN 953-09:
Requirements made on limiting equipment for boilers.
Functional Safety SIL 3 IEC 6508:
Functional safety of safety-related electrical/electronic/programmable
electronic systems
TÜV type approval VdTÜV Bulletin “Wasserstand 00” (= Water Level 00):
Requirements made on water level limiting & control equipment.
Type approval no. TÜV · SHWS · XX-43
(see name plate)
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