crosby safety valve catalogue price

Crosby pressure relief valves have maintained leadership in overpressure protection for over 140 years. The direct spring-operated safety and pressure relief valves are among the world’s most widely used for oil and gas production and refining, petrochemical and chemical processing, and conventional and nuclear power. Crosby pressure relief valves maintain the industry’s most extensive and capable flow facilities for testing in air, steam, and water.

Crosby pressure relief valves have been on the forefront of overpressure protection for more than 140 years. The direct spring-operated safety and pressure relief valves are among the world’s most widely used in oil and gas production and refining, petrochemical and chemical processing, and conventional and nuclear power industries. Crosby pressure relief valves uphold the industry’s most extensive and capable flow facilities for testing gas, liquid, steam and multi-phase applications.

Crosby is part of Emerson’s pressure relief portfolio, a complete range of standard and customized solutions, whatever need you have for overpressure protection.

Emerson is an industry leader in pressure relief valve technology. A single point provider, they offer an extensive product range for reliable performance with lower valve life-cycle costs and unique solutions. Their unrivaled engineering and technical expertise results in pressure management products, application solutions and services that can positively affect your business, safety, operations and the bottom line. Their engineering teams have designed testing equipment and procedures that assure optimum valve performances under all service conditions.

Facilities have cryogenic flow testing capabilities down to -320°F / -196°C, and flow steam testing, making them amongst the largest in the world that are used for research, experimentation and control of emissions on relief valves, like Crosby’s.

Crosby’s H-Series direct spring-operated safety valves are the trusted and proven solution to thorough overpressure protection for steam safety applications such as economizers, steam drums, superheaters, reheaters and more.

Crosby’s J-Series valves provide high quality and dependable overpressure protection for air, gas, steam, vapor, liquid and two-phase applications in one simple design.

Crosby leads the way in pressure relief valve technology. Explore high quality and dependable overpressure protection and phase applications in their catalog of relief valves.

EMERSON. CROSBY H-SERIES DIRECT SPRING SAFETY VALVESDirect spring safety valves that provide comprehensive overpressure protection for ASME Boiler and Pressure Vessel Code Section I, and Section VIII steam safety applicationsFEATURES HCI ISOFLEX" • ASME/NB certified capacities for steam. • Set and tested on steam. • Full nozzle flanged option. • Restricted lift for customized capacity. • Long service life. • Low maintenance. • Two ring set pressure and blowdown control. • ISOFLEX seat tightness up to 93%. For seat tightness greater than 93% consult factory. TECHNICAL DATA GENERAL APPLICATION H-Series direct spring operated safety valves are the proven solution for comprehensive overpressure protection on steam safety applications including economizers, steam drums, superheaters, reheaters and more. Sizes: Orifices: Connections: Temperature range: Set pressures: IVi" F IV2" to 6" RR 10" 0.307 to 19.29 in2 (1.98 to 124.45 cm2) Flanged or welded inlet 1120 °F (604 °C) 15 to 5000 psig (1 to 345 barg) Code: ASME Boiler and Pressure Vessel Code Section I, and Section VIII Emerson.com/FinalControl © 2017 Emerson. All Rights Reserved VCTDS-00595-EN 17/11

Complete overpressure protection for ASME B&PVC Section I A complete safety valve package for utility and industrial steam generators and steam systems. • Boilers with design pressures to 3000 psig (207 barg). • Valves designed to increase plant up-times, extend maintenance intervals and increase total valve life. Steam System Components 7. Boiler feed water pump 8. Cold reheat inlet VALVE SELECTION APPLICATIONS AND RECOMMENDED™ VALVE SELECTION NOTES 1. Selection matrix shows valves in optimum locations - Styles HSJ and HCI may be interchanged to suit a specific application or to obtain a...

STYLE HE ISOFLEX® Style HE ISOFLEX® safety valves are high pressure, high capacity reaction type valves designed specifically for saturated steam service on boiler drums with design pressures above 2000 psig (138 barg) up to critical pressure. FEATURES TECHNICAL DATA • Extends Up-time - ISOFLEX® seat tightness to 93% of set pressure ensures maximum generating times, extending maintenance intervals. For seat tightness greater than 93% consult factory. • Reduces Maintenance Costs - Exceptional seat tightness minimizes maintenance resources and repair times and reduces spare parts purchase and...

PRODUCT OVERVIEW The HE ISOFLEX incorporates our latest field proven seat tightness design which allows boilers to operate close to set pressure without leakage across the valve seat. The HE ISOFLEX also has a unique patented eductor control that permits the valve to attain full capacity lift at a pressure 3% above popping pressure to the requirements of Section I of the ASME Boiler and Pressure Vessel Code. APPLICATION The HE ISOFLEX safety valve is a high pressure, high capacity reaction type valve, designed specifically for saturated steam service on boiler drums having design pressures...

CROSBY H-SERIES STYLE HE ISOFLEX 28 Part name Body Nozzle Nozzle ring Nozzle ring set screw Disc insert Disc holder Disc holder retaining nut Eductor Guide ring Guide ring set screw Spindle assembly Piston Piston retaining ring Spindle nut Bonnet Bonnet studs Bonnet stud nuts Material Carbon steel SA-216 Gr. WCC Stainless steel Stainless steel Stainless steel Inconel® Nickel alloy Stainless steel Nickel alloy Stainless steel Stainless steel Stainless steel Nickel alloy Steel Steel Carbon steel SA-216 Gr. WCC Alloy steel SA-193 Gr. B7 Steel SA-194 Gr. 2H Bottom spring washer Top spring...

2500 psig maximum pressure 1. These style designations are for standard welded inlets. For optional CL 2500 flanged inlet valves, the "W" is dropped from the style designation. 2. Weld prep per customer"s specifications. Safety valves must be mounted on a nozzle with an inlet diameter equal to or greater than the nominal valve inlet size, dimension A. See ASME boiler and pressure vessel code Section I and ANSI/ASME B31.1 for recommended installation. 3. Bolt holes straddle centerline on flanged connections. 4. Dismantling height: an additional 20 inches (508 mm) is required. Drain: main...

1 Increases Operating Efficiency Sizes: - Restricted Lift Option for customized capacity, reduced reaction forces, and boiler design standardization Orifices: - Seat tightness up to 93% of valve set pressure. For seat tightness greater than Connections: 93% consult factory - Two ring control to adjust overpressure and Maximum blowdown independently temperature: - May also be used for ASME Boiler and Maximum Pressure Vessel Code Section VIII off boiler set pressure: steam applications for higher operating Codes: pressures 1 Reduces Maintenance Costs CROSBY H-SERIES STYLE HCI ISOFLEX DIRECT...

CROSBY H-SERIES STYLE HCI ISOFLEX PRODUCT OVERVIEW The HCI ISOFLEX safety valve is a high capacity nozzle type valve suitable for saturated and superheated steam service. The valves are available in inlet sizes of 1½”, 2", 2½”, 3", 4" and 6" and in orifice sizes H2 to RR specifically designed for the power industry. Welded inlets and flanged outlets are standard, with flanged inlets (1) with full (removable) nozzles (2) also available. Blowdown control is precise with two adjustable rings (3 and 12) - one each on the nozzle (1B or 2) and guide (11). Blowdown may be adjusted from 2 to 4%...