kelso safety valve factory

Kelso"s pressure relief valve raises the bar on best available technology from railway equipment suppliers. Our external PRV design for general purpose tank cars improves reliability and performance over the older internal models that allowed active components to come in contact with the commodities being transported. In addition, the maintenance requirements for the Kelso PRV are less frequent due to elimination of contact with the goods inside the car, and the inspection process each time the tank car is loaded is far less time-consuming due to the Kelso PRVs location outside the car.  With thousands of units in service the Kelso external PRV has demonstrated reliable operations in many tough service conditions without need of maintenance or unscheduled repair.

The development of Kelso"s vacuum relief valve was driven by customer demand for better performance due to high failure rates of older models of VRVs. The Kelso VRV features constant force pressure springs and meets DOT-117 tank car specifications. Kelso"s VRV is available as 1.5, 3 or 4.5 psi with a 2.5 inch threaded connection or flange.

ADVERTISEMENTCanadian-based Kelso Technologies Inc., a railcar equipment developer, received approval of its external, stem-free JS75H pressure relief valve from the Association of American Railroads in mid-October. The new model doesn"t have O-rings and doesn"t require pneumatic tools�features that offer maximum operator safety and performance, according to Kelso Technologies President John Carswell.

In Skokie, Ill., Midland Manufacturing, a railroad tank car safety valve producer, introduced its new A-2165 pressure relief valve. According to Kevin Cook, Midland vice president of sales and marketing, the valve has a start-to-discharge weight of 165 pounds, as opposed to the traditional 75 pounds. Its O-ring seal also prevents leakage and optimizes flow rates for increased operator safety.

VANCOUVER —Kelso says that all of the participating oil refiners engaged in the service trials of the company’s new 2” angle valve have installed the requisite number of K2AV units.

Kelso’s K2AV is designed to transfer LP-Gas and anhydrous ammonia in pressurized railroad tank car applications. The company also announced that Hull AAR compliance testing continues.

Kelso says management expects to generate multi-million dollar revenues from the K2AV as oil refiners specify the company’s products in larger numbers.

The Kelso K2AV is a single piece of fabricated steel. It is designed for universal use and has a self-draining, self-cleaning seat; it has a low operating torque for ease of use; it has an adjustable packing gland; and it is a serviceable valve. The K2AV has an AAR standard mounting that will allow for ease of interchangeability with other 2” angle valves. The K2AV is manufactured only in the USA.

The K2AV rounds out the Kelso Pressure Car Kit which includes the pressure relief valve, an excess flow check valve, a thermometer well, a needle valve and magnetic gauging device.

“The response to Kelso’s K2AV from potential customers who were involved in the final design specifications has been very encouraging. Kelso is prepared for full K2AV production and distribution when the final AAR approvals are received,” said James R. Bond, CEO at Kelso in a statement.

Kelso’s AAR-certified vacuum relief valve is a new constant-force-spring design that provides more reliable tank car pressure management than older helical coil spring models. Kelso"s VRV is available as 1.5, 3 or 4.5 psi with a 2.5 inch threaded connection or flange. No castings; made in USA. www.kelsotech.com

Our check valve products are designed to be self cleaning and positive sealing. We offer a wide range of sizes, cracking pressures and seal options in our standard product line. We also manufacture custom check, custom relief, custom manifolds, cartridge, non return, tank, needle, ball, valve pistons, cylinder, oxygen, bleed valves, poppets and more.

With Farris, a trustworthy valve is only part of our promise. Farris provides customers with total pressure relief management solutions that support a facility’s entire lifecycle, transforming the way you ensure plant safety:

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Well-known companies worldwide rely on LESER safety valves. With its sole focus on overpressure protection, the safety valve specialist LESER is one of the international market leaders.