Blacoh Fluid Control

Sentry™ Pulsation Dampeners

Sentry pulsation dampeners, surge suppressors, accumulators, and inlet stabilizers safeguard pumps, piping, valves, fittings, meters, and inline instrumentation from harmful effects such as pulsations, cavitation, thermal expansion, hydraulic shock, surges, and water hammer. They promote a smooth, steady flow, ensuring uniform and stable fluid movement. With a variety of materials available, they are compatible with a wide range of applications.

• Sizes range from 1/8” to 6”
• Temperature range: -60° F to 400° F
• Capacity up to 100 gallons and 25,000 PSI

AODDampener™

The Hybrid Valve™ Dampener

Sentinel™ Diaphragm Seals

Isolate and Protect Process System Instrumentation

Blacoh diaphragm seals are designed to protect gauges and other system instrumentation by isolating them from process fluids. These diaphragms safeguard against contamination and damage from hazardous, corrosive fluids. In addition to shielding systems from harsh substances, Sentinel Guards also prevent freezing, reduce erratic surges caused by solids, and ensure the reliability and accuracy of pressure instrumentation. They are available in plastic, metal, and PVDF materials.

• Rated for pressures up to 1000 PSI
• Inlet options include FNPT, BSP, Socket Weld, Flange, and Tri-Clamp up to 0.75”
• Gauge accuracy of ±2% or better at full deflection

Sentinel™ Valves

Back Pressure Valves

Back Pressure Valves—also known as loading valves or anti-siphon valves—are essential for controlling discharge pressure in pump applications. They help prevent premature component wear, enhance safety, improve efficiency, and support multi-pump systems, making them a vital accessory for your system.

Pressure Relief Valves

Pressure Relief Valves—often referred to as safety valves, bypass valves, or pump relief valves—are designed to protect pumps, systems, and tanks from excessive pressure. They help prevent damage, reduce the risk of cavitation, and enhance personnel safety, making them an indispensable safety component.

Degassing Valves

Certain chemicals used in metering and dosing applications are prone to outgassing, while others may release hazardous vapors at pump startup. If a metering pump has been inactive for a while, it can lose its prime due to gas accumulation in the pump and discharge line, preventing fluid flow. In these scenarios, it is crucial to properly vent gases and vapors from the pumping system.

SENTINEL™ Calibration Columns

SENTINEL™ Injection Quills

Safely and Efficiently Deliver Chemicals into Process Pipelines

SENTINEL Injection Quills are engineered to safely and efficiently introduce chemicals into process pipelines. They inject chemicals directly and evenly into the center of the process flow, away from the pipe walls and where flow velocity is highest. This approach minimizes contact with the pipe walls, ensuring more uniform mixing with the process fluid. Additionally, the built-in spring-loaded check disk prevents backflow of pressurized process fluid into the chemical feed when the pump is off or the chemical feed is disconnected.

SpillStop™ Leak Prevention & Spill Containment

SurgeShield™

Pulsation Dampener and ASME-Certified Surge Vessel

Our standard series of 15, 25, and 37-gallon dampeners are engineered to function as shock absorbers for your peristaltic pumps while also acting as compact bladder-style surge vessels. These robust buffers help prevent damage to pipes and pumps, reducing the risk of costly repairs by mitigating the harmful effects of water hammer and pulsation from large positive displacement pumps.