Specialty Gas Special Service Pressure Regulators - Airgas.com

Specialty Gas Regulators
Special Service Pressure Regulators
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View these Special Service Pressure Regulators in the Specialty Gas Equipment Manual here(PDF).

Special Service Pressure Regulators

Acetylene Models-Specially designed for acetylene service, these unique, single- and two-stage regulators are engineered to provide precision performance. The regulators feature a 10-micron, sintered stainless steel filter and a Teflon-lined, nylon-reinforced neoprene diaphragm. Because delivery pressure of acetylene should not exceed 15 psig, these regulators are equipped with a special pressure gauge that features a red warning to indicate unsafe delivery pressure. They are also equipped with a reverse-flow check valve to prevent backflow of gas into the regulator on the outlet.

AA Acetylene Models- Specially designed for acetylene service, these unique single- and two-stage regulators are engineered to provide precision performance. The regulators feature a 10-micron, sintered stainless steel filter and a Teflon-lined, nylon-reinforced neoprene diaphragm for atomic adsorption spectroscopy. Because delivery pressure of acetylene should not exceed 15 psig, these regulators are equipped with a special pressure gauge that features a red warning to indicate unsafe delivery pressure. They are also equipped with a reverse-flow check valve to preventbackflow of gas into the regulator.

The unit will not withdraw from cylinders when the pressure drops below 75 psig. This minimizes withdrawal of acetone, a concern in AA applications. Purge valves are not provided and not recommended for this system. This model, if used in welding applications, must have the 75 psig limiting control device removed before shipment. An optional filter is available to assure a complete acetone-free system.

Oxygen Models- These oxygen service regulators are manufactured using the latest materials of construction. They feature a large, reinforced Viton® diaphragm for excellent performance, long life, and easy maintenance. Dual filters protect internal components from contamination and restrict velocity to reduce adiabatic heat of recompression. A preset safety relief valve is standard. This regulator is designed with unique materials and is specially cleaned for oxygen service.

Fluorine Service Models-These regulators have been designed, constructed, and tested specifically for fluorine service. Since fluorine is a highly reactive element and a strong oxidizer, it is necessary to take special care in the design and construction of fluorine handling equipment. These regulators feature a specially designed, bronzefilled Teflon® seat, encased in a Monel housing. This significantly reduces non-metallic exposure to the wetted stream, thus reducing the risk of ignition. All wetted parts are constructed of Monel metal, Iconel®, or bronze-filled Teflon® materials and are protected by a 10-micron, sintered Monel filter. The regulator is degreased, passivated, and ready for immediate use in fluorine service.

Ultra-Low Delivery Pressure Models- This two-stage regulator is recommended for use with non-corrosive gases in applications where an ultra-low delivery pressure is required. It maintains an accurate delivery pressure over the life of the cylinder. The two-stage design limits the variations in the outlet pressure to 0.03 psig for every 100 psig of inlet pressure decay. Made of durable, longlasting forged brass and then chrome plated, this regulator is perfect for non-corrosive, ultra-low delivery pressure gases. A needle valve is included on the outlet.

Ultra-Low Inlet Pressure Models- These regulators are specifically designed to provide sensitive, accurate, low-pressure control for laboratory applications. They feature an oversized “pancake” body of magnesium alloy with a Buna-N diaphragm. These regulators are typically used in conjunction with other high-pressure regulators or on house-line systems that limit inlet pressure to 250 psig (except on model N570K the inlet pressure limit is 10 psig). Regulators are adjusted easily by removing the knurled nut and turning the screw to alter the tension on the diaphragm.

Because these regulators are not typically recommended for direct connection to cylinders, they are provided with a 1/4" FNPT inlet port. Direct cylinder connection is only permissible when using liquefied compressed gases with vapor pressures below 250 psig such as 1,3-butadiene, n-butane, isobutane, isobutylene, propane, and propylene. With these products, a CGA 510 connection must be used.

Note: Inlet pressure should not exceed maximum recommended inlet pressure.

High Delivery Pressure Models- Designed for a wide range of pressure settings, these single-stage regulators are recommended for use in petroleum field applications, research laboratories for hydrogenation, catalytic reduction, accelerated age testing, calorimetric testing, component testing, and pressure testing applications. These regulators feature a rugged brass piston, which provides increased safety and reliability at high delivery pressures. A 25-micron inlet filter protects internalcomponents.

Heavy-Duty High-Pressure- This series of Airgas heavy-duty high pressure cylinder regulators is recommended for use on cylinders or panel mounting with a wide variety of non-corrosive inert gases. This series is ideally suited for high-pressure testing, purging and charging, calibration kits, manufacturing processes and R&D laboratories.

The Airgas heavy-duty high-pressure cylinder regulator’s piston sensor design provides structural reliability in high-pressure applications. The low torque control knob and self-relieving feature permit easy adjustment of pressure in closed or dead-end systems. The 820 Series is configurable for most applications.

High-Flow Dome-Loaded Laser Regulators- The Airgas Special Service Laser Regulator is a high-flow dome-loaded regulator. This regulator has an integral remote sensing pilot which yields high flow capacity with near perfect performance, unique in a compact unit. Since this regulator is dome loaded by a remote sensing pilot regulator, it becomes a servo-regulator, and the overall performance is determined by the performance of the pilot regulator. This Laser Regulator is the key component in laserapplications.