The Sentinel Metering Valve is a pneumatically-operated valve without an Abrasive Cutoff Switch suitable for all common blast media NOT coarser than 50 mesh. The sentinel is compatible on classic blast machines 2 cuft and larger equipped with a pressure release remote (either pneumatic or electric). This valve requires 50-70 PSI to fully open the plunger. This manually-operated abrasive metering valve has a 1-1/2" NPT connection to the pot.
Benefits:
- Metering and valve actuation are separate functions so wear and tear of the metering assembly can be replaced quickly and inexpensively in the field.
- The fail-to-safe design automatically stops the flow of media if either air or electric power is interrupted.
- Can be configured for pressure-hold or pressure-release blast machines.
Related Parts (39) Parts Included (39)

Muffler, breather, ACS, 1/8 inch
#07657
$12.13
#07657
$12.13
263

Connector, 1/8" brass hex
#01962
$3.88
#01962
$3.88
264

Sentinel Seal Kit, Upper Segment
#22388
$57.23
#22388
$57.23
522

Drain Petcock, 1/4 inch NPT
#01993
$16.49
#01993
$16.49
267

Sentinel Seal Kit, Lower Segment
#22389
$21.83
#22389
$21.83
523

Sentinel Cylinder Cap
#20512
$21.83
#20512
$21.83
524

Sentinel Piston Cup
#20515
$33.47
#20515
$33.47
526

Spring, Sentinel and Auto Quantum Valve
#20600
$48.50
#20600
$48.50
527

Valve, Upper Body, Sentinel
#20514
$304.58
#20514
$304.58
528

Sentinel Wear Sleeve
#20495
$70.81
#20495
$70.81
530

Sentinel Seat Plate
#20497
$40.74
#20497
$40.74
531

Sentinel Metering Plate and Stem (Course Abra…
#20499
$65.96
#20499
$65.96
532

Sentinel Metering Plate, Urethane (Fine Abras…
#21438
$79.54
#21438
$79.54
533

Sentinel Packing Gland
#21021
$30.07
#21021
$30.07
534

Screw, 5/16 inch x 1 1/4 inch hex head
#19509
$0.97
#19509
$0.97
535

Screw, 1/2 inch x 2 1/2 inch hex head
#03457
$1.94
#03457
$1.94
536

Nipple, 1-1/4 inch x closed
#01717
$8.25
#01717
$8.25
537

Washer, 5/16 inch flat
#03216
$0.49
#03216
$0.49
538

Sentinel, Lower Body
#20511
$66.93
#20511
$66.93
539

Sentinel, Flange Adapter w/ Inspect Plate
#20513
$53.35
#20513
$53.35
540

Nut, 3/8 inch NC Hex Head
#03311
$0.97
#03311
$0.97
541

Valve, 3-way, ACS, manual, 1/8 inch
#07658
$59.17
#07658
$59.17
543

Clemco Spring, Compression, 5/8 inch x 1-11/1…
#01982
$8.73
#01982
$8.73
324

Pool Pal Extension Leg Cap Screw
#03054
$0.49
#03054
$0.49
1110
Sentinel Valve Piston Shut-Off
#20494
$122.00
#20494
$122.00
1152

Nipple, 1-1/2 inch x close
#01791
$15.52
#01791
$15.52
482

Pipe Wye, 1-1/4 inch
#01818
$31.53
#01818
$31.53
484

Metering Valve Handle, Heavy Duty
#20498
$43.65
#20498
$43.65
491

Wing Nut, 1/4-NC
#03113
$0.97
#03113
$0.97
492

Handle Bolt Spacer for FSV & Sentinel Valves
#02431
$8.73
#02431
$8.73
493

Valve Handle Clevis Pin 1/4 inch x 1-3/8 inch
#20246
$1.94
#20246
$1.94
494

Gauge Unit for FSV & Sentinel Valves
#02433
$24.25
#02433
$24.25
495

Set Screw, 1/4-NC x 1/2 inch Square Head
#03080
$0.97
#03080
$0.97
496

Inspect Plate, FSV - MPV - PVR - Sentinel Val…
#02440
$18.43
#02440
$18.43
500

Wing Nut, 5/16-NC
#03213
$0.97
#03213
$0.97
502

Brass Adaptor, 1/8 inch NPS, MJIC
#01940
$3.88
#01940
$3.88
247

Nut, 1/2 inch NC Hex Head
#03511
$0.97
#03511
$0.97
504

1/4 Inch Flat Washer
#03116
$0.97
#03116
$0.97
506

Hitch Pin, cotter 1/4 inch - 5/16 inch
#20245
$0.97
#20245
$0.97
507