fisher safety valve supplier

Industry leading pressure and safety relief valve designs with over 140 years of technical and application expertise providing custom engineered solutions for O&G, Refining, Chemical, Petrochemical, Process and Power applications. Our designs meet global and local codes and standards (API 526; ASME Section I, IV & VIII; EN ISO 4126; PED & more). Gain insight into the performance of your pressure relief valves with wireless monitoring.

We know the consequences of process failure are great, that’s why we have an unwavering commitment to standards and processes that ensure innovative and reliable product designs. Many years from now, as the Fisher™ brand is put onto products, customers will continue to know it stands for integrity.

Control Specialties is proud to distribute an excellent selection of Fisher products, including control valves, regulators, and other controls products. A world leader in producing durable control valves, regulators, and performance services to the process control industries, Fisher is best known for the development of control valves and regulators. Fisher control valves help customers decrease the expense of plant maintenance, reduce the cost of regulatory compliance, and lower capital requirements.

Fisher 289 Series Relief Valve or Backpressure Regulator are spring-loaded throttling relief valve used downstream of pressure regulators to protect the downstream system from overpressure. 289 Series Valves are ideal for low-pressure settings due to the increased sensitivity provided by a large diaphragm area. Designed for pressure control; they are not ASME safety relief valves.

UL Listed external relief valves used on ASME containers. The relief valve is held close by the spring force seating the rubber valve disc against the orifice. When the tank pressure exceeds the spring force, the valve disc lifts off the orifice allowing gas to discharge through the valve to the air. When the tank pressure decreases enough, the spring force closes the valve disc back against the orifice stopping further discharge. All working parts of theses valves are outside the container connection so they must be protected against mechanical damage.

Economical: Low initial cost, easy installation, and high capacity per dollar invested reduces total cost of having relief valve capabilities in your system

Durable: Brass body construction and stainless steel spring reduce susceptibility to corrosion damage and the preset, pinned spring retainer prevents relief valve setpoint tampering

Fisher Valve technologies are born from Emerson’s passion to increase customer process safety and efficiency, by defining the industry with more than 140 years of trusted innovations forging the future of flow control solutions.  Time and again, Fisher continues to develop innovative solutions designed to help customers reduce plant maintenance costs, reduce capital requirements, reduce the cost of regulatory compliance, and increase process availability.

As Emerson’s Impact Partner in the Rocky Mountain Area, we are proud to be your authorized Fisher product representative and distributor. Additionally, we are proud to provide application engineering and valve services for Fisher products. Our Application Engineers are available to answer your questions and help you find the best fit solution for your project"s needs.

AR Valve have formal sales distribution with the Emerson. In addition we work in close co-operation with numerous partnership companies to ensure we are able to offer our customers a complete range of all valve types to meet all applications and service conditions.

Fisher regulators offer pressure and flow control products and solutions in three broad categories - industrial gas and liquids, natural gas and propane gas. Fisher regulators have become the regulator of choice for thousands of installations around the world based on reliability, versatility and rugged construction.

Fisher Types 1808 globe-style and 1808A angle-style pilot-operated backpressure regulators or relief valves are economical, compact devices used in gas or liquid service to maintain pressure on oil and gas separators, and in pressure relief applications in gas distribution systems.FeaturesSimple, Reliable DesignCompact and LightweightConvenient Installation in any PositionQuick DisassemblyOptional Upstream Registration for Reduced Build-upSelf-Draining Body

The 289 Series relief valve is a throttling relief valve used downstream of pressure regulators to protect the downstream system from overpressure. A smooth throttling action minimizes pressure surges in the system during emergency operation. These relief valves are available in 1/4, 3/4, 1 or 2 NPT sizes with spring ranges (relief pressure settings) from 5 in. w.c. to 75 psig / 12 mbar to 5.2 bar.

All sizes above 1/4 NPT feature a pitot tube booster for achieving the highest possible relief capacity with a minimum buildup of system pressure. When the valve is opening, high gas velocity through the orifice creates an area of relatively low pressure near the end of the pitot tube. This pitot tube effect forms a partial vacuum above the diaphragm which helps to open the valve.

Type 92S control valves and pilot use lapped seating surfaces that have been proven to minimize seat leakage.Types 6492H and 6492L pilots have bellows sealed stems to eliminate stem guide friction. The steel and stainless steel Type 92S control valves are available with a set point range of up to 250 psig / 17,2 bar and a maximum temperature of 650° F / 343° C.

The human heart has four valves that control blood flow through the body.  Industrial valves act in a similar manner and control how fluid flows through a pipe or a duct.  There are many different types of valves used for various applications and it is extremely important that the valve is made of the correct materials.  The article explained how valves may need to stand high pressure or may have caustic fluids flowing through them that will eventually corrode the material.  If a pressure relief safety valve blows on a steam boiler, there could be injuries to employees. Leaks in safety valves used in gas or vapor situations could cause environmental hazards.  In the oil and gas industry, there are valves not only throughout the pipelines, but also on storage tanks to control fugitive emission losses that can result from handling flammable and hazardous petroleum products that produce vapor.

Liquids and other media flowing through valves during critical operating conditions can be affected by a number of hazards…. The symptoms of valves that may be failing include an increase in noise emission, valve and pipe component erosion, or mechanical vibration in the valves and the connected pipelines. Under many critical applications, neglecting these signs can result in negative outcomes on plant performance, the costs of ownership, fugitive emissions, and even serious safety hazards. This why many safety valves are required to be made to ASME, ANSI, and/or API standards.

Industries that use safety valves in their operations must remember, however, that valves are affected in the same way as pipes.  Fluids are not only passing through them but there is also pressure on the materials when safety valves are open and closed, which could lead to greater or more rapid corrosion.  So verifying metal alloys is essential to manufacturing quality assurance. If you are the one producing the valves, you need to ensure that the products that go out the door match the customer’s specifications and meet industry standards.  Is the metal or alloy correct?  Are you sure?  Your reputation and brand depend on it.  If you are the one using the valves, you better make certain that the incoming product matches your specifications.  Lives could depend on it.  And if your company relies on those valves to keep operations running smoothly, you better have a maintenance schedule in place to make sure that there has been no degradation over time.

Portable x-ray fluorescent (XRF) analyzers are essential tools for verifying that all critical metals conform to requirements independent of certifications and markings from the manufacturer. They can identify material other than that specified and help ensure product reliability and safety. These x-ray fluorescence analyzers are used for in-house QA/QC of alloy materials, coating/plating thickness verification, positive material identification of incoming alloy raw material stock, machined and fabricated parts and wear metals in oil. They give users immediate, nondestructive chemical analysis and alloy grade identification – which can help avoid hazards.

No matter what industry, material verification and positive material identification of the metal alloys used in valves has never been more important for product reliability and safety. After all, what good is a safety valve if it’s not very safe.