IMI Norgren

Norgren Excelon P72F/P74F Smooth Start Exhaust Valve

Excelon design allows in-line or modular installation with other 73 and 74 Series products.

High-Flow, 3-Port/2-Position, Spring Return, Normally Closed Valve
Available with Air or Solenoid Operator
Controls rate of downstream air pressure buildup and system start-up.
Cylinders and other air operated devices are eased into normal starting positions, reducing the possibility of equipment damage and hazards to the user.
High exhaust flow of downstream air when electrical signal or pilot air is removed.
Optional manual operated lockout slide exhausts downstream air and shits off pilot air when closed. Can be locked in closed position with a customer supplied padlock.

Part Number
SERIES
PORT SIZE NPT
DIMENSIONS A
DIMENSIONS B
DIMENSIONS C
EXHAUST PORT SIZE
72 Series
1/4"
6.14
2.56
1.89
1/4" NPT
72 Series
3/8"
6.14
2.56
1.89
1/4" NPT
74 Series
3/8"
8.70
3.31
2.91
1/2" NPT
74 Series
1/2"
8.70
3.31
2.91
1/2" NPT
74 Series
3/4"
8.70
3.31
2.91
1/2" NPT
OPTIONS

P72F-***-*** or P74F-***-***

Port Size
  1/4" NPT: Use -2 in the 5th position.
  3/8" NPT: Use -3 in the 5th position.  
  1/2" NPT: Use -4 in the 5th position.
  3/4" NPT: Use -6 in the 5th position.

Threads
  PTF Threads: A in the 6th position.

Operator Adapter Plate
  Air Pilot: A in the 7th position.
  Air Pilot w/ Lockout Slide: B in the 7th position.
  Solenoid Pilot: C in the 7th position.
  Solenoid Pilot w/ Lockout Slide: D in the 7th position.

Optional Solenoid Operator Override
  Non-Locking: Use P in the 8th position.
  Locking, Screwdriver Slot: Use S in the 8th position.
  No Solenoid Operator: Use N in the 8th position.

Optional Solenoid Coil Voltage & Power Requirement
  6 VDC, 2.00 Watts: Use D in the 9th position.
  12 VDC, 2.0 Watts: Use E in the 9th position.
  24 VDC, 2.0 Watts: Use F in the 9th position.
  110 VDC, 3.4 Watts: Use H in the 9th position.
  24 VAC, 2.5 Va: Use C in the 9th position.
  220/240 VAC, 8 Va, 50/60 Hz: Use K in the 9th position.
  No Solenoid Operator: Use N in the 9th position.
  110/120 VAC, 2.5 Va: Use A in the 9th position.

Optional Solenoid Electrical Connector
  Cable Grip Connector: Use A in the 10th position.
  Cable Grip w/ Indicator Lights (Use Only w/ A and F Coils): Use B in the 10th position.
  1/2" NPT Conduit: Use C in the 10th position.
  No Electrical Connector: Use N in the 10th position.

SPECIFICATIONS / TECHNICAL DATA

Fluid: Filtered and Lubricated Compressed Air
Main Valve Inlet Pressure Range:
  w/ Solenoid Operator: 44 to 150 PSIG
  w/ Air Operator: 44 to 250 PSIG
Operating Temperature Range:
  w/ Solenoid Operator: 0 to +120 Degrees Fahrenheit
  w/ Air Operator: 0 to +150 Degrees Fahrenheit
Maximum Flow: 45 SCFM
Average Flow Factor (Cv):
  In-Out Ports: 1.6
  Out-Exhaust Ports: 1.7
Snap Pressure: Full flow when downstream pressure reaches 50 to 80% inlet pressure.
https://catalogs.jhf.com/Pneumatic-and-Hydraulic-Equipment/726/