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)

1/4 Inch Flat Washer
#03116
$3.45
#03116
$3.45
506

Brass Adaptor, 1/8 inch NPS, MJIC
#01940
$8.04
#01940
$8.04
247

Clemco Spring, Compression, 5/8 inch x 1-11/1…
#01982
$17.23
#01982
$17.23
324

Connector, 1/8" brass hex
#01962
$9.19
#01962
$9.19
264

Drain Petcock, 1/4 inch NPT
#01993
$24.53
#01993
$24.53
267

Gauge Unit for FSV & Sentinel Valves
#02433
$35.83
#02433
$35.83
495

Handle Bolt Spacer for FSV & Sentinel Valves
#02431
$16.08
#02431
$16.08
493

Hitch Pin, cotter 1/4 inch - 5/16 inch
#20245
$3.45
#20245
$3.45
507

Inspect Plate, FSV - MPV - PVR - Sentinel Val…
#02440
$25.58
#02440
$25.58
500

Metering Valve Handle, Heavy Duty
#20498
$65.60
#20498
$65.60
491

Muffler, breather, ACS, 1/8 inch
#07657
$20.36
#07657
$20.36
263

Nipple, 1-1/2 inch x close
#01791
$26.10
#01791
$26.10
482

Nipple, 1-1/4 inch x closed
#01717
$16.08
#01717
$16.08
537

Nut, 1/2 inch NC Hex Head
#03511
$3.45
#03511
$3.45
504

Nut, 3/8 inch NC Hex Head
#03311
$3.45
#03311
$3.45
541

Pipe Wye, 1-1/4 inch
#01818
$44.40
#01818
$44.40
484

Pool Pal Extension Leg Cap Screw
#03054
$2.87
#03054
$2.87
1110

Screw, 1/2 inch x 2 1/2 inch hex head
#03457
$4.02
#03457
$4.02
536

Screw, 5/16 inch x 1 1/4 inch hex head
#19509
$3.45
#19509
$3.45
535

Sentinel Cylinder Cap
#20512
$35.83
#20512
$35.83
524

Sentinel Metering Plate and Stem (Course Abra…
#20499
$99.91
#20499
$99.91
532

Sentinel Metering Plate, Urethane (Fine Abras…
#21438
$117.07
#21438
$117.07
533

Sentinel Packing Gland
#21021
$43.90
#21021
$43.90
534

Sentinel Piston Cup
#20515
$48.44
#20515
$48.44
526

Sentinel Seal Kit, Lower Segment
#22389
$30.78
#22389
$30.78
523

Sentinel Seal Kit, Upper Segment
#22388
$78.72
#22388
$78.72
522

Sentinel Seat Plate
#20497
$61.56
#20497
$61.56
531
Sentinel Valve Piston Shut-Off
#20494
$122.00
#20494
$122.00
1152

Sentinel Wear Sleeve
#20495
$96.88
#20495
$96.88
530

Sentinel, Flange Adapter w/ Inspect Plate
#20513
$78.72
#20513
$78.72
540

Sentinel, Lower Body
#20511
$101.93
#20511
$101.93
539

Set Screw, 1/4-NC x 1/2 inch Square Head
#03080
$3.45
#03080
$3.45
496

Spring, Sentinel and Auto Quantum Valve
#20600
$70.64
#20600
$70.64
527

Valve Handle Clevis Pin 1/4 inch x 1-3/8 inch
#20246
$5.17
#20246
$5.17
494

Valve, 3-way, ACS, manual, 1/8 inch
#07658
$79.73
#07658
$79.73
543

Valve, Upper Body, Sentinel
#20514
$394.63
#20514
$394.63
528

Washer, 5/16 inch flat
#03216
$2.87
#03216
$2.87
538

Wing Nut, 1/4-NC
#03113
$3.45
#03113
$3.45
492

Wing Nut, 5/16-NC
#03213
$3.45
#03213
$3.45
502