Perfection Excess Flow Valves
Perfection Excess Flow Valves SCFH: 400, 600, 800, 1100, 1800 Product Specification This manual details the qualification and design testing that has been performed during the development of the Perfection Excess Flow Valve with Bleed-by Reset (EFVB). The information disclosed herein is intended to aid in the evaluation and qualification of the Perfection Excess Flow Valve for use in gas distribution systems. These valves offer the following beneficial features: Automatic reset when line pressure is equalized Consistent trip flow rate Maintenance free Easy to install Available in a variety of Perfection fittings such as: mechanical tapping tees, shut off valves, sticks and Permaserts Customer specified trip flow ranges also available
Perfection Excess Flow Valves SCFH: 400, 600, 800, 1100, 1800 2 Elster Perfection Materials of Construction SCFH 400 & 600 Valve Body - The valve body is stamped from stainless steel. Port Tube - The port tube is molded from acetal copolymer. Valve Body - The valve body is stamped from stainless steel. Port Tube - The port tube is molded from acetal copolymer. SCFH 800, 1100 & 1800 Spring The spring is manufactured from stainless steel. Note: Some spring assemblies also incorporate a stainless steel ball seat. Ball The ball is manufactured from nylon and is precision ground. O-ring This elastomeric component is Buna-Nitrile and complies with U.S. DOT CFR Title 49, Part 192 and ASTM D 2000.
Perfection Excess Flow Valves SCFH: 400, 600, 800, 1100, 1800 3 Elster Perfection Qualification Testing General The tests listed below were conducted to verify compliance of the Perfection EFV to U.S. DOT CFR Title 49, Part 192.381. Additionally, all units are 100% performance tested before shipment. Test Method and Apparatus Testing was performed in accordance with ASTM F 2138 and ASTM F 1802. Closure flow test Bleed-by flow rate/leak rate after closure test Pressure drop across EFV test Pressure drop just prior to closure Valve resetability test Snap-acting load test Cycle test Results The performance data provided on the following pages is given in SCFH of 0.6 specific gravity gas. The laboratory testing was performed using dry air, and the results were mathematically converted for 0.6 specific gravity gas. Performance Curves Elster Perfection 400 SCFH EFV Trip Flow Rate vs Line Pressure Pressure Drop vs Flow Rate Elster Perfection 600 SCFH EFV Trip Flow Rate vs Line Pressure Pressure Drop vs Flow Rate
Perfection Excess Flow Valves SCFH: 400, 600, 800, 1100, 1800 4 Elster Perfection Performance Curves Elster Perfection 800 SCFH EFV Trip Flow Rate vs Line Pressure Pressure Drop vs Flow Rate Elster Perfection 1100 SCFH EFV Trip Flow Rate vs Line Pressure Pressure Drop vs Flow Rate Elster Perfection 1800 SCFH EFV Trip Flow Rate vs Line Pressure Pressure Drop vs Flow Rate
Perfection Excess Flow Valves SCFH: 400, 600, 800, 1100, 1800 5 Elster Perfection Performance Curves Elster Perfection EFV - All Sizes Max Bleedby Flow vs Line Pressure Elster Perfection EFV - All Sizes Reset Time* vs Inlet Pressure 1/2 CTS x 0.090 Wall PE Tubing, 60 FT (112 in3) * Reset time may vary slightly depending on specific gravity of gas. Additional Service Line Diameters To estimate a maximum reset time for 60 feet of 3/4 IPS, 1 CTS or 1 IPS service lines, reference the graph above and multiply the time by the given factor: Tubing Size 3/4 IPS 1 CTS 1 IPS Multiplication Factor 3.7 3.9 5.9 Protected Line Length vs Inlet Pressure 1/2 CTS -0.90 Wall
About Elster Group Elster Group is the world’s leading manufacturer and supplier of highly accurate, high quality, integrated metering and utilization solutions to the gas, electricity and water industries. In addition, through its subsidiary Ipsen International, it is the leading global manufacturer of high level thermochemical treatment equipment. The group has over 8,500 staff, operations in 38 countries and serves over 115 markets around the world. Elster’s high quality products and systems reflect the wealth of knowledge and experience gained from over 170 years of dedication to measuring precious resources and energy. Elster Perfection 222 Lake Street Madison, OH 44057 USA T 1 440 428 1171 F 1 440 466 7351 www.elster-perfection.com Registered Trademark of Elster Perfection Corporation 2008 Elster Perfection. All right reserved Information contained herein is subject to change without notice. Product specifications may change. Contact your Elster Perfection representative for the most current product information. Printed in the United States. EP-PS0001-EN-P - January 2008 This technical information is furnished without charge or obligation and for informational purposes only. Acceptance, use and/or reliance on this information is at the recipient’s sole risk. Nothing contained in this document shall be considered an endorsement of any particular material or equipment. The material presented in this document in no way modifies, amends, enlarges or creates any contract, agreement, specification, warranty or promise.
Perfection Excess Flow Valves SCFH: 400, 600, 800, 1100, 1800 3 Elster Perfection Qualification Testing General The tests listed below were conducted to verify compliance of the Perfection EFV to U.S. DOT CFR Title 49, Part 192.381. Additionally, all units are 100% performance tested before shipment. Test Method and Apparatus
Perfection 1660 Photo and 2400 Photo: Width: 27.6 cm (10.9 in) Depth: 45.0 cm (17.7 in) Height: 11.6 cm (4.6 in) Weight Perfection 1260 and 1260 Photo: 2.5 kg (5.5 lb) Perfection 1660 Photo and 2400 Photo: 3.1 kg (6.8 lb) Electrical Input voltage range* Perfection 1260 and 1260 Photo: DC 15.2 V Perfection 1660 Photo and 2400 Photo: DC 24 V
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