Excess Flow Valves from Malema

Malema Excess Flow Valves are normally open, in-line safety devices that act to limit flow of liquids or gases out of a pressurized system. While they will pass normal flow rates, the flow valves will close when the flow rates exceed the preset value. This occurs in the event when a pressurized system is opened to atmosphere due to pipe rupture or hose breakage or due to wrong process operation. These excess flow valves are reset to open after the necessary repairs on the piping/hose are completed, by using either manual (external or integral bypass reset options) or auto reset means as ordered by the customer.

Malema Excess Flow Valves protect personnel, equipment, environment, and facilities in the event of catastrophic line breaks caused by earthquake, accidents, landslide, corrosion, or deliberate action and reduces the risk of hazardous and explosive fluid spills and exposure. These excess flow valves also help companies avoid costly cleanups and process downtime.

Malema Excess Flow Valves are currently being used to control fluids including air, steam, nitrogen gas, oxygen gas, hydrogen gas, carbon dioxide gas, water, anhydrous ammonia, sulfuric acid, natural gas, gasoline, propane, and hydrocarbons.


Excess Flow Valve Products and Features


Malema M-VF Series Safety Excess Flow Valve
M-VF Series Safety Excess Flow Valves
  • High reliability
  • Field adjustable
  • Low pressure drop
  • Right-angle flow



Malema M-XF Series Safety Excess Flow Valve
M-XF Series Safety Excess Flow Valves
  • Can be disassembled for repair or inspection without removal from pipe line
  • Field adjustable
  • Broad adjustable range
  • Operates effectively with liquids or gases
  • In-line flow


Talk to one of our process control experts today at (855) 737-4714, or fill out our online form to learn more.
Process Control
A lesson for me is that I need to involve you earlier in the program.

You were tireless in your support and it will not be forgotten!

Valin Was There For Us
When we needed technical assistance and applications support, Valin was there for us. Their knowledgeable engineers saved us an invaluable amount of time, helping us get up and running quickly. We are very happy with their services.