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.
See the bottom of the product manuals for diagrams of additional compatible products.
Related Parts (39) Parts Included (39)

Brass Adaptor, 1/8 inch NPS, MJIC
#01940
$7.46
#01940
$7.46
247

Muffler, breather, ACS, 1/8 inch
#07657
$19.31
#07657
$19.31
263

Connector, 1/8" brass hex
#01962
$8.61
#01962
$8.61
264

Drain Petcock, 1/4 inch NPT
#01993
$22.97
#01993
$22.97
267

Clemco Spring, Compression, 5/8 inch x 1-11/1…
#01982
$16.08
#01982
$16.08
324

Nipple, 1-1/2 inch x close
#01791
$24.53
#01791
$24.53
482

Pipe Wye, 1-1/4 inch
#01818
$43.40
#01818
$43.40
484

Metering Valve Handle, Heavy Duty
#20498
$61.56
#20498
$61.56
491

Wing Nut, 1/4-NC
#03113
$2.87
#03113
$2.87
492

Handle Bolt Spacer for FSV & Sentinel Valves
#02431
$14.93
#02431
$14.93
493

Valve Handle Clevis Pin 1/4 inch x 1-3/8 inch
#20246
$4.59
#20246
$4.59
494

Gauge Unit for FSV & Sentinel Valves
#02433
$33.81
#02433
$33.81
495

Set Screw, 1/4-NC x 1/2 inch Square Head
#03080
$2.87
#03080
$2.87
496

Inspect Plate, FSV - MPV - PVR - Sentinel Val…
#02440
$24.01
#02440
$24.01
500

Wing Nut, 5/16-NC
#03213
$2.87
#03213
$2.87
502

Nut, 1/2 inch NC Hex Head
#03511
$2.87
#03511
$2.87
504

1/4 Inch Flat Washer
#03116
$2.87
#03116
$2.87
506

Hitch Pin, cotter 1/4 inch - 5/16 inch
#20245
$2.87
#20245
$2.87
507

Sentinel Seal Kit, Upper Segment
#22388
$74.68
#22388
$74.68
522

Sentinel Seal Kit, Lower Segment
#22389
$29.27
#22389
$29.27
523

Sentinel Cylinder Cap
#20512
$33.81
#20512
$33.81
524

Sentinel Piston Cup
#20515
$45.92
#20515
$45.92
526

Spring, Sentinel and Auto Quantum Valve
#20600
$66.61
#20600
$66.61
527

Valve, Upper Body, Sentinel
#20514
$382.94
#20514
$382.94
528

Sentinel Wear Sleeve
#20495
$91.84
#20495
$91.84
530

Sentinel Seat Plate
#20497
$58.53
#20497
$58.53
531

Sentinel Metering Plate and Stem (Course Abra…
#20499
$94.86
#20499
$94.86
532

Sentinel Metering Plate, Urethane (Fine Abras…
#21438
$111.01
#21438
$111.01
533

Sentinel Packing Gland
#21021
$41.38
#21021
$41.38
534

Screw, 5/16 inch x 1 1/4 inch hex head
#19509
$2.87
#19509
$2.87
535

Screw, 1/2 inch x 2 1/2 inch hex head
#03457
$3.45
#03457
$3.45
536

Nipple, 1-1/4 inch x closed
#01717
$14.93
#01717
$14.93
537

Washer, 5/16 inch flat
#03216
$2.30
#03216
$2.30
538

Sentinel, Lower Body
#20511
$96.88
#20511
$96.88
539

Sentinel, Flange Adapter w/ Inspect Plate
#20513
$74.68
#20513
$74.68
540

Nut, 3/8 inch NC Hex Head
#03311
$2.87
#03311
$2.87
541

Valve, 3-way, ACS, manual, 1/8 inch
#07658
$76.70
#07658
$76.70
543

Pool Pal Extension Leg Cap Screw
#03054
$2.30
#03054
$2.30
1110
Sentinel Valve Piston Shut-Off
#20494
$122.00
#20494
$122.00
1152