✅ This item is normally regularly stocked. Shipping times may vary depending on availability. Please contact us to confirm stock and shipping times. You will receive tracking details once the item has shipped.
Description
Anti-Siphon, Back Pressure, Pressure Relief, and Burp Valve for LMI Metering Pumps
The LMI Multifunction Valve 150 PSI is an optional safety and performance-enhancing discharge valve designed for LMI chemical metering pump systems. This compact multifunction assembly combines four important functions into one valve: anti-siphon protection, back pressure regulation, pressure relief, and manual priming ("burp") capability to support safer and more stable chemical dosing performance.
Many LMI pumps come equipped with multifunction valves, but this LMI Discharge Valve with Anti-Siphon and Pressure Relief can also be easily retrofitted onto most pump models with 900, 800, 400, and 300 Series liquid ends.
LMI Multifunction Valve 150 PSI Key Features
Anti-Siphon:
The discharge flow path goes through a port that only opens on the discharge stroke of the pump. This prevents the discharge line from siphoning liquid from the supply tank in most applications.
Back Pressure:
The diaphragm that controls anti-siphoning creates approximately 20 PSI back pressure on the pump's discharge check valve which improves performance.
Pressure Relief:
A second diaphragm protects the pump from overpressure by releasing fluid to a relief port in the event of discharge line pressure in excess of 150 PSI.
Burp:
This function makes it easy and safe to depressurize the discharge line without loosening tubing or fittings.
Prime:
Turn the black knob to divert flow through the return line back to the storage tank.
Drain:
Turn both knobs to open the discharge line of the pump, leaving it open to the atmosphere.
Made for LMI 900, 800, 400, and 300 Series Pumps
The LMI multifunction valve for 900, 800, 400, and 300 Series pumps is designed for compatibility with multiple LMI liquid-end configurations.
Compatible applications commonly include:
- LMI 900 Series pumps
- LMI 800 Series pumps
- LMI 400 Series pumps
- LMI 300 Series pumps
This standalone valve is commonly used as:
- A retrofit upgrade
- A replacement multifunction valve
- A maintenance replacement component
Using genuine OEM accessories helps maintain safe and reliable pump operation.
Applications
The LMI Multifunction Valve 150 PSI is commonly used in:
- Water treatment systems
- Wastewater treatment plants
- Cooling tower treatment systems
- Boiler water treatment
- Industrial chemical feed systems
- Municipal disinfection systems
- Chemical injection skids
These systems rely on stable discharge pressure and safe chemical handling for reliable operation.
Why Buy from Cleanflow
Cleanflow supplies professional-grade LMI metering pump parts and chemical dosing accessories for industrial and municipal applications across Canada and the USA.
Benefits include:
- Fast Canadian shipping
- Genuine OEM replacement parts
- Trusted industrial water treatment products
- Reliable maintenance support solutions
For additional LMI products and repair components:
Get LMI Multifunction Valve 150 PSI Today
Order the LMI Multifunction Valve 150 PSI from Cleanflow for enhanced chemical metering pump safety, pressure control, and anti-siphon protection. Improve system reliability and simplify discharge-side protection with this genuine OEM multifunction valve assembly for LMI metering pumps.
Buy LMI Multifunction Valve today for reliable anti-siphon protection, pressure control, and safer chemical metering pump operation.
Frequently Asked Questions
What does the LMI Multifunction Valve 150 PSI do?
The valve combines anti-siphon protection, back pressure regulation, pressure relief, and manual priming into one assembly. This helps improve chemical dosing safety, stability, and overall pump performance.
What pumps are compatible with this multifunction valve?
The valve is designed for LMI 900, 800, 400, and 300 Series liquid-end configurations. It is commonly used with compatible LMI chemical metering pump systems.
What is the purpose of the anti-siphon function?
The anti-siphon feature helps prevent uncontrolled chemical flow caused by siphoning conditions. This improves dosing safety and helps protect the chemical feed system.
Why is back pressure important in a chemical metering pump system?
Back pressure helps stabilize discharge pressure during pump operation. This improves dosing consistency and supports more accurate chemical injection performance.
What happens if pressure exceeds 150 PSI?
The pressure relief function activates when discharge pressure exceeds 150 PSI. This helps protect the pump, tubing, and connected system components from overpressure conditions.
What is the burp function used for?
The burp function helps release trapped air from the discharge line during startup and priming. This simplifies pump priming and supports smoother chemical feed operation.
Is this a replacement or retrofit component?
Yes. The multifunction valve is commonly used as both a retrofit upgrade and a replacement component for existing LMI systems.
✅ This item is normally regularly stocked. Shipping times may vary depending on availability. Please contact us to confirm stock and shipping times. You will receive tracking details once the item has shipped.
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