The inlet valve on positive displacement pumps alternately opens and closes creating acceleration and deceleration of fluid flow to the pump, causing alternating drops in pressure and pressure spikes in the inlet piping.

Installed at the pump’s inlet, the SENTRY Inlet Stablizer acts as an accumulator to store fluid and release it back into the line as needed. Virtually all acceleration head loss is eliminated because the pump draws fluid from the dampener instead of the pipeline, avoiding the risk of cavitation and ensuring complete chamber fill on each inlet stroke of the pump.

Decreasing fluid pulsation in this manner will decrease the likelihood of damage being caused to the pump and its components, increasing pump lifespan and ulitmately saving money.

You can read more about inlet stabilizers and how they can protect your system on our blog.

NEW! SENTRY Automatic Inlet Stabilizer

HOUSING MATERIALS: Stainless Steel
DIAPHRAGM MATERIALS: PTFE
INLET SIZES:1.5", 2"
INLET TYPES: FNPT, BSP, ANSI Flange, Tri-Clamp
PRESSURE RATINGS: 150 psi (10.3 bar)
AIR CONTROLS: Automatic
CERTIFICATIONS & TESTING: 3.1 Cert, Material Cert, Cert of Origin, Hydrostatic, Dye Penetrant, Radiography, PMI, Bolt Tensile, Customer Specified

10IN³ SENTRY III

HOUSING MATERIALS: Acetal, CPVC, Polypropylene, PTFE, PVC, PVDF, Alloy 20, Hastelloy C, Stainless Steel, 30 RA Polished Stainless Steel
BLADDER MATERIALS: Buna-N, EPDM, Hypalon, Neoprene, PTFE, Santoprene, Silicone (Food Grade), Viton
INLET SIZES: 0.375" (10mm), 0.5" (15mm), 0.75" (20mm) Tri-clamp
INLET TYPES: FNPT, BSP, ANSI Flange, DN Flange, Socket Weld, Tri-Clamp, Union
PRESSURE RATINGS: 150 psi (10.3 bar), PVDF 200 psi (13.7 bar), 1000 psi (68.9 bar)
AIR CONTROLS: Chargeable
CERTIFICATIONS & TESTING: ATEX, NSF, CRN, PED, ARRA, 3.1 Cert, Material Cert, Cert of Origin, Hydrostatic, Dye Penetrant, Radiography, PMI, Bolt Tensile, Customer Specified

HOUSING CONSTRUCTION

85IN³ SENTRY II

HOUSING MATERIALS: Acetal, Conductive Polypropylene, CPVC, Polypropylene, PTFE, PVC, PVDF, Alloy 20, Carbon Steel, Hastelloy C, Stainless Steel, 30 RA Polished Stainless Steel
BLADDER MATERIALS: Aflas, Buna-N, Buna-N (Food Grade), EPDM, Hypalon, Neoprene, PTFE, Santoprene, Silicone (Food Grade), Viton
INLET SIZES: 0.5" (15mm), 0.75" (20mm), 1" (25mm), 1.5" (40mm) Tri-clamp
INLET TYPES: FNPT, BSP, ANSI Flange, DN Flange, Socket Weld, Tri-Clamp, Union
PRESSURE RATINGS: 150 psi (10.3 bar), PVDF 250 psi (17.2 bar), 1000 psi (68.9 bar)
AIR CONTROLS: Chargeable
CERTIFICATIONS: ATEX, NSF, CRN, PED, ARRA, 3.1 Cert, Material Cert, Cert of Origin, Hydrostatic, Dye Penetrant, Radiography, PMI, Bolt Tensile, Customer Specified

HOUSING CONSTRUCTION

370IN³ SENTRY I

HOUSING MATERIALS: Polypropylene, PTFE, PVC, PVDF, Alloy 20, Hastelloy C, Stainless Steel, 30 RA Polished Stainless Steel
BLADDER MATERIALS: Aflas, Buna-N, EPDM, Hypalon, Neoprene, PTFE, Santoprene, Silicone (Food Grade), Viton, SS Metal Belows (Series 2420)
INLET SIZES: 1.5" (40mm), 2" (50mm), 2.5" (65mm) Tri-clamp
INLET TYPES: FNPT, BSP, ANSI Flange, DN Flange, Socket Weld, Tri-Clamp, Union
PRESSURE RATINGS: 150 psi (10.3 bar), PVDF 200 psi (13.7 bar), 1000 psi (68.9 bar)
AIR CONTROLS: Chargeable
CERTIFICATIONS: ATEX, NSF, CRN, PED, ARRA, 3.1 Cert, Material Cert, Cert of Origin, Hydrostatic, Dye Penetrant, Radiography, PMI, Bolt Tensile, Customer Specified

HOUSING CONSTRUCTION

1155IN³ SENTRY IV

HOUSING MATERIALS: Polypropylene, Aluminum, Epoxy Coated Aluminum, Alloy 20, Carbon Steel, Epoxy Coated Carbon Steel, Hastelloy C, Stainless Steel, 30 RA Polished Stainless Steel
BLADDER MATERIALS: Buna-N, EPDM, EPDM (Food Gradde), Hypalon, Neoprene, PTFE, Silicone (Food Grade), Viton
INLET SIZES: 3" (80mm), 4" (100mm), 6" (150mm)
INLET TYPES: FNPT, ANSI Flange, DN Flange, Tri-Clamp
PRESSURE RATINGS: 150 psi (10.3 bar), 275 psi (18.9 bar)
AIR CONTROLS: Chargeable
CERTIFICATIONS: ATEX, PED, ARRA, 3.1 Cert, Material Cert, Cert of Origin, Hydrostatic, Dye Penetrant, PMI, Bolt Tensile, Customer Specified

HOUSING CONSTRUCTION

2310IN³ SENTRY V

HOUSING MATERIALS: Carbon Steel, Epoxy Coated Carbon Steel, Stainless Steel
BLADDER MATERIALS: Buna-N, EPDM, EPDM (Food Grade), Hypalon, Neoprene, Silicone (Food Grade), Viton
INLET SIZES: 3" (80mm), 4" (100mm), 6" (150mm)
INLET TYPES: FNPT, ANSI Flange, DN Flange
PRESSURE RATINGS: 275 psi (18.9 bar)
AIR CONTROLS: Chargeable
CERTIFICATIONS: ATEX, PED, ARRA, 3.1 Cert, Material Cert, Cert of Origin, Hydrostatic, Dye Penetrant, PMI, Bolt Tensile, Customer Specified

HOUSING CONSTRUCTION