Flowserve NRG 16-50 - Manual (Page 6)

6
NRG 16-50, NRG 17-50, NRG 19-50, NRG 111-50
Technical Data
Service pressure
NRG 6-50: PN 40, 3 bar at 38 °C
NRG 7-50: PN 63, 60 bar at 75 °C
NRG 9-50: PN 60, 00 bar at 3 °C
NRG -50: PN 30, 83 bar at 357 °C
Mechanial connection
Screwed ¾" to EN ISO 8- (NRG 6-50, NRG 7-50, NRG 9-50)
Screwed " to EN ISO 8- (NRG -50)
Materials
Sheath: .430, X5 CrNi8-0
Screw-in body: .457, X6CrNiMoTi7-- (NRG 6-50, NRG 7-50, NRG 9-50)
Screw-in body: .459, XNiCrMoCuN5-0-7 (NRG -50)
Measuring electrode: .457, X6CrNiMoTi7-- (NRG 6-50, NRG 7-50, NRG 9-50)
Measuring electrode: .4, X39CrMo7- (NRG -50)
Electrode tip: .440, X5CrNiMo7--
Electrode insulation: Gylon ® (NRG 6-50, NRG 7-50, NRG 9-50)
Electrode insulation: Special ceramic (NRG -50)
NRG ...-50: Four-pole connector: polyamid (PA)
NRG ...-50F: Terminal box 3.6 G AlSi8Cu3
Lengths supplied
500 mm, 000 mm, 500 mm, 000 mm, 500 mm, 3000 mm
ph value
Max. admissible: 0 (NRG -50)
Electrical connection
NRG ...-50: 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 6-50, NRG 7-50, NRG 9-50)
Approx. . kg (without extension) (NRG 6-50F, NRG 7-50F, NRG 9-50F)
Approx. .8 kg (without extension) (NRG -50)
Approx. .7 kg (without extension) (NRG -50F)
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 · SWB / SHWS · XX-XXX
(see name plate)
Gylon ® is a registered trademark of Garlock Sealing Technologies, Palmyra NY, USA