Type 5281 – Normally Closed Servo-Assisted Solenoid Valve with Plunger Pilot

Ordering Chart
Port connection Orifice Cv Pressure range Item no. Voltage/Frequency [V/Hz]
[inch] [mm] [PSI] 24 V DC 24 V/60 Hz 120 V/60 Hz 240 V/60 Hz
Brass
NPT 1/2 13 4.66 2.9 - 232 457 395 457 396 457 397 457 398
NPT 3/4 20 5.83 2.9 - 232 457 399 457 400 457 401 457 402
NPT 1 25 11.65 2.9 - 232 457 403 457 404 457 405 457 406
NPT 1 1/4 32 23.30 2.9 - 232 457 407 457 408 457 409 457 410
NPT 1 1/2 40 23.30 2.9 - 232 457 411 457 412 457 413 457 414
NPT 2 50 46.60 2.9 - 232 457 415 457 416 457 417 457 418

Servo-assisted brass plunger piloted solenoid valve with un-coupled rugged diaphragm. This valve is designed for neutral gases and liquids where a rugged and reliable solution is required.
Technical Data
Pressure range 2.9-232 PSI, Max.
Temperature media +14 °F ... +176 °F
Ambient temperature 131 °F, Max.
Body material Brass
Seal material NBR
Coil material Epoxy (Class H)
Power consumption DC: 8 W, AC: 21 VA (inrush), 12 VA (hold)
Protection class IP65
Electrical connection 2509 cable plug Form A (included)
Accreditations UL Listed, FM Class 1, Div 2, CSA, CE
CE mark CSA mark for Canada UL listed mark for US FM APPROVED mark
Options
  • Normally open (5281B)
  • Cables plug with LED
  • Cable plug with varistor
  • UL Recognized version with cable plug - Class 1, Div 1 FM & CSA
Envelope Dimensions [inch] (see datasheet for details)
Type 5281 Envelope Dimensions
Size A B C
1/2" 2.56 1.57 4.72
3"4" 3.94 2.36 5.02
1" 4.53 2.76 5.35
1 1/4" 4.96 3.35 5.77
1 1/2" 4.96 3.35 6.12
2" 6.46 4.53 6.98

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