SANITARY PULSATION DAMPENERS

Prevent siphoning and stabilize dosage rates with SENTINEL Diaphragm Back Pressure Valves

Diaphragm back pressure valves are designed to enhance the performance of pumping systems by applying a continuous back pressure to the system pump, while also acting as an anti-syphon valve. Robust construction ensures reliability in the rigorous service of municipal and industrial applications.

• Reliability and low cost
• Adjustable 5-150 psi for standard, 5-50 psi low pressure, or 50-350 psi high pressure
• Anti-siphon function
• Robust machined construction
• Vulcanized PTFE/EPDM diaphragm
• Full range of chemically resistant wetted materials
• Sizes from ¼” to 4” depending on model

 

Diaphragm back pressure valves apply positive discharge pressure to a metering pump system to prevent siphoning and eliminate varying dosage rates caused by fluctuating downstream pressure. The diaphragm is held against the valve seat by an internal spring. When the preset pressure is exceeded, the diaphragm is forced up and system fluid flows through the valve to the injection point. The valves are preset for 50 psi, however they are field adjustable from 5 to 150 psi, (optional up to 350 psi for high pressure) via the adjustment screw. Installation should be as close to the injection point as possible to prevent system line drainage, and it is most important that all pumping system equipment such as pulsation dampeners and pressure gauges are between the pump and back pressure valve

Introducing Blacoh's all-new pulsation dampener designed

specifically for AODD pumps.
When it comes to dampeners for AODD pumps, you don't have to sacrifice quality for price. Backed by the name you know and trust, our new AODDampener is a market-responsive quality product that improves the performance of your system, reduces water hammer and the common shaking of pipes caused by AODD pumps.

With its universal materials: 316 Stainless Steel and PTFE backed diaphragm, these units will cover almost all fluid applications and can be easily used in a full range of system materials from plastics to metals.

Watch the videos below to see the dampener’s performance and benefits in action.

Proven Performance

We are dedicated to providing you with the most competitive pricing while still maintaining that the AODDampener is quality sourced, manufactured and assembled to ISO 9001:2008 standards here in the United States.

Extensively tested and rated to maximum pressure of 150 PSI (10.3 bar).

Improve your AODD pumping performance, reduce harmful vibrations and save on overall energy cost of your system

Fully Automatic Air Control

Our newly designed fully automatic air control is connected internally to the diaphragm and automatically adjusts when needed.

Low Air Consumption:
When connected to a plant air supply line, the fully automatic air control only takes the air needed to adjust to the change in pump discharge pressure.

available in two sizes for convenient stocking

Graduated Calibration Cylinders for Accurate Calibration of Chemical Metering Pumps

Blacoh SENTINEL Calibration Columns or Cylinders will enhance your feed systems by allowing verification of the flow rate of the feed pump.

• CNC machined ends
• Clear tube for easy GPH reading
• Sealed top
• Quick-off top for cleaning (optional)
• Loose top (optional)
• NSF-61 Approved Materials

Calibration Columns are installed on the suction side of the metering pump and are isolated with two valves installed with the cylinder.

The top of the cylinder is vented back to the supply tank or drain. The calibration cylinder is filled to the top mark then the valve from the tank is closed. Turning on the metering pump will draw down the liquid providing a simple means to verify the accuracy of the pump flow rate. USGPH (Gallons Per Hour) and ML are shown on the cylinder.

Blacoh SENTINEL Calibration Columns are critical to accurate determination of your system flow rate, either at start-up or following maintenance. They are offered in clear PVC or Borosilicate glass. Max cylinder pressure is 15psi.