Excess Flow Valve

Product & Services ID : Excess Flow Valve

0 Reviews / Write a Review

Watch Video

Excess Flow Valve Frequently Asked Questions

Q: What is an excess flow valve?
Ans: An excess flow valve is a safety device that automatically shuts off the flow of gas or liquid if the flow rate exceeds a predetermined level, typically caused by a ruptured or damage of pipeline.


Q: What are some common applications of excess flow valves?
Ans: Excess flow valves are commonly used in gas and liquid pipelines, propane tanks, and natural gas service lines to prevent gas or liquid leaks due to ruptures, breaks, or other damage to the pipeline or equipment.


Q: How does an excess flow valve work?
Ans: Excess flow valves are designed with a spring-loaded disc that sits in the flow path of the pipeline. As long as the flow rate is below the preset level, the disc remains open, allowing fluid or gas to flow through. If the flow rate exceeds the preset level, the disc is forced upward, closing the valve and stopping the flow of gas or liquid.


Q: How do I maintain an excess flow valve?
Ans: Excess flow valves require very little maintenance, but periodic inspection is necessary to ensure proper operation. 

Q: Do there any safety precautions we should take when working with an excess flow valve?
Ans: Yes, working with an excess flow valve requires certain safety precautions to be taken. Always wear appropriate protective gear, such as gloves and eye protection, and ensure that the pipeline or equipment is depressurized/ Empty before attempting to work on the EFV. In addition, make sure to follow all manufacturer's instructions and safety guidelines when working with the Excess Flow Valve.

Q: Does excess flow valves could be installe in existing pipelines?
Ans: Yes, EFCV  can be retrofitted onto existing pipelines with the appropriate installation procedures.


Q: What are  common problems that can occur with excess flow valves?
Ans: Common problems with excess flow valves include debris buildup, corrosion, mechanical wear & tear, and calibration issues. Regular inspection and maintenance would help prevent these type issue.


Q: Are excess flow valves be used for both gas and liquid applications?
Ans: Yes, excess flow valves can be used for both gas and liquid applications.  it is important to ensure that the valve is rated for the specific application and meets all relevant safety standards.


Q: What is the lifespan aprox of an excess flow valve?
Ans:  Lifespan of an excess flow valve depends on several factors, including the type of valve, the operating conditions, and the frequency of maintenance. Generally, excess flow valves have a lifespan of ten years or more, but periodic replacement may be necessary.


Q: How often should excess flow valves be inspected in a year?
Ans: Excess flow valves should be inspected periodically minimum once in a year, depending on the application and operating conditions. Some applications may require daily or weekly inspections inspections.


Q: What should we do if our excess flow valve activates?
Ans: If your excess flow valve activates, it is important to immediately shut off the flow of gas or liquid Line and evacuate the area. Contact a qualified technician to assess the situation and make any necessary repairs or replacement.


Q: Could excess flow valves to be installed in hazardous locations?
Ans: Cirtainly excess flow valves can be installed in hazardous locations. Before installation the considerations must be taken that the valve meets all relevant safety standards and regulations.


Q: What are some common materials used to manufacture excess flow valves?
Ans: Common materials used to manufacture excess flow valves include stainless steel, brass, aluminum, and various plastics as per compatibility of flued. The material used to manufacture the valve depend on the specific Flued.

At SEPL, we are recognized as the most distinguished Excess Flow Check Valve Manufacturer in India. The Excess Flow Valves are spring-actuated safety components which are responsible for shutting off the fluid flow when any fitting or pipe situated on the valve’s downstream either ruptures or breaks. We  can install our range of excess flow check valves in the flow lines either to or from the pressure tanks.

Excess Flow Valve

SEPL is engaged in manufacturing, supplying, and exporting the best quality EFCV.  Our products are widely used for LPG liquid lines and LPG vapor lines. Our Excess flow check valves (EFCVs) are the most trustworthy and make sure for good service in different plants all over India. Our products have earned esteemed certifications such as IS, ISI, ISO, and CE, and all the products are up to international standards.


Each of our valves has a particular closing flow rating determined by the fluid type passing both through the valve’s spring and the valve. The valve is arrow-stenciled which indicates the pressure-flow direction. The valve will close automatically if the flow exceeds in that direction.


For pressure equalization, the check mechanism comprises a small bleed hole. The spring will reopen the valve automatically when there is an equalization of the pressure. Our selection of excess flow check valves offers a closing flow rate that is 50% higher than the expected normal flow. This enables our valves to offer a maximum margin to let the valve close during a catastrophic event while getting rid of nuisance closings. Also, our valve’s line downstream is short is free of bends. 

All About EFCV

The excess Flow Check Valve for LPG offered at SEPL can automatically shut down the Fluid flow upon an unexpected Gas or Liquide break. It defends the plant personnel and property from getting injured by "whipping"  hoses. It can reset when a repair is made and it lets full and unrestricted flow of fluid in the standard open position. the EFV works on  Differencial Pressure  wehen rupture or huge leakage occurs down stream the EFV  the DP increase and  Puppet close the path of fluid.

Excess Flow Check Valve

The application of the product is quite easy. As the title implies, excess flow check valves are used to avoid unwanted flow at maintain pressure. They are broadly used at opening   of tank where  measuring, outlets and even at inlet of fluids.


These valves are widely used in different industries which include refining, LPG Bottling Plants, PNG pipe lines, chemical, fluids where at the time of Spoilege Rupture of line a huge loss is occurs. As per Guidelines of IS6044 Part-1 & 2  and PNG guidlines The rating of EFCV is 1.5 Times of nomnal flow requirments of  Gas System. 


Excess Flow Check Valve Specification

  • DESIGN CODE: BSEn 13175

  • MOC BODY: BRASS IS 319 / SS 304MAX. W.P: 25 KG/CM2



  • SIZE: 3/4″ BSPT – 2″ BSPT / FLANGE

  • Usage:  with Liquide/ Gas

Benefits And Uses Of Excess Flow Valves

  •  An excess flow valve that works perfectly as a safety component in the LPG system.

  • Save Personnel & property for Desster.

  • The SEPL’s Excess Flow Valves are properly designed and tested according to MSS SP-115.

  • A compact Excess Flow Check Valve for Industrial Gases is designed to prevent damage due to explosion by heavy leakage during the breakage of gas piping possibly by vibration, earthquake, or any other condition.

SEPL Excess Flow Valves promise for a supreme quality structure that assures perfect security.

Customer Rating and Reviews

Write a Review