Flowserve NRG 16-51 User Manual download pdf (Page 6)

NRG 16-51, NRG 17-51, NRG 19-51

Technical Data

Service pressure

NRG 16-51: PN 40, 32 bar at 238 °C

NRG 17-51: PN 63, 46 bar at 260 °C

NRG 19-51: PN 160, 100 bar at 311 °C

Mechanical connection

Screwed ¾" to EN ISO 228-1

Materials

Sheath 1.4301 X5 CrNi18-10

Screw-in body 1.4571, X6CrNiMoTi17-12-2

Measuring electrode 1.4571 X6CrNiMoTi17-12-2

Electrode rod 1.4401 X5CrNiMo17-12-2

Electrode insulation PEEK

NRG 1...-51: Four-pole connector: polyamid (PA)

NRG 1...-51F: Terminal box 3.2161 G AlSi8Cu3

Lengths available

500 mm, 1000 mm, 1500 mm

Electrical connection

NRG 1...-51:

Four-pole connector, cable glands M 16

NRG 1...-50F: Terminal box made from aluminium, cable gland M 20

Protection

IP 65 to EN 60529

Max. admissible ambient temperature

70 °C

Weight

Approx. 1.2 kg (without extension)

(NRG 16-51, NRG 17-51, NRG 19-51)

Approx. 2.1 kg (without extension)

(NRG 16-51F, NRG 17-51F, NRG 19-51F)

Approvals

EC Prototype approval PED Pressure Equipment Directive 97/23/EC, EN 12952-11, EN 12953-09:

Requirements made on limiting equipment for boilers.

Functional Safety SIL 3 IEC 61508:

Functional safety of safety-related electrical/electronic/programmable

electronic systems

TÜV type approval VdTÜV Bulletin “Wasserstand 100” (= Water Level 100):

Requirements made on water level limiting & control equipment.

Type approval no. TÜV · SHWS · XX-423

(see name plate)

Gylon

is a registered trademark of Garlock Sealing Technologies, Palmyra NY, USA

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Flowserve NRG 16-51 User Manual Page 6

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