Emerson C471 Data Sheet
Contents
1. 29 to 66 C Construction Materials Steel Body and Operating Lever Stem Assembly Excess Flow Spring Spring Seat Closing Spring Disc Holder Disc Retainer Screw O ring Seat O ring Retainer Cotter Pin Spring Shaft Screen Travel Stop Screen Cap Bolt Gasket and Lock Washer Nut Washer Bonnet Nut Guide Bracket and Stainless steel Plated steel Cap Screw Polyurethane Rod Wiper PTFE Bushing Packing Adaptor and Packing Ring Nitrile NBR Standard Main Disc and Bleed Disc Construction Other Disc and O ring Material Available from Factory PTFE Fluorocarbon FKM Neoprene CR Ethylene Propylene EPDM and Kalrez Closing Flow and Vapor Capacity See Table 2 Approximate Weights 2 inch Sizes DN 50 Type C471 11 pounds 5 kg Type C477 9 pounds 4 kg 3 inch Sizes DN 80 Type C471 21 pounds 10 kg Type C477 16 pounds 7 kg 1 The pressure temperature limits in this Bulletin and any applicable standard or code limitation should not be exceeded 2 Product has passed Fisher testing for leakage down to 40 F 40 C Kalrez is a mark owned by E I du Pont de Nemours and Co Lg n hiie Bulletin LP 7 CA71 C477 1 VALVE CLOSED 2 JET BLEED OPEN a LIMITED BLEED VALVE OPEN FLOW JET BLEED EQUALIZATION Figure 2 Typical Operational Schematic2. Gobain Performance Plastics Corporation www fisherregulators com Bulletin LP 7 C471 C477 September 2012 LA a LISTED H fa a Type C477 E i Type C471 Figure 1 Types C471 and C477 Jet Bleed Internal Valves Back Check Feature Allows reverse flow fill with or without actuator device in valve open position Spring loaded Polytetrafluoroethylene PTFE stub shaft packing PTFE wear pads Rulon Bushings at critical wear points Manual Cable or Air Open Close valve actuators Thermal Fusible links or plugs melt at 212 to 220 F 100 to 104 C and allow valve closure in the event of a fire at the valve a mw gt EMERSON D450244T012 Bulletin LP 7 C471 C477 Specifications Body Size and End Connection Style Inlet 2 or 3 inch MNPT DN 50 or 80 Outlet 2 or 3 inch FNPT DN 50 or 80 Number of Outlets Type C471 2 side and straight through Type C477 1 straight through Excess Flow Springs Half Coupling Flows 2 inch Sizes DN 50 105 150 and 250 GPM 397 567 and 946 L min 3 inch Sizes DN 80 160 265 375 and 460 GPM 605 1003 1419 and 1741 L min Full Coupling Flows 2 inch Sizes DN 50 60 80 and 130 GPM 227 302 and 492 L min 3 inch Sizes DN 80 120 230 320 and 380 GPM 454 870 1211 and 1438 L min Maximum Allowable Inlet Pressure l1 400 psig 27 6 bar WOG Temperature Capabilities 1 2 20 to 150 F
3. ING IN LINE ADAPTORS Dimensions Inches mm 1 1 4 inch FNPT DN 32 4 70 119 2 75 70 2 05 52 2 inch FNPT DN 50 6 77 1172 3 5 89 2 80 71 3 inch FNPT DN 80 7 53 191 4 5 114 3 80 97 IN LINE ADAPTOR Figure 4 Internal Valve Flow Positions Table 1 Closing Flow Propane and NH3 CLOSING FLOW TYPENUMBER TYPENUMBER CLOSING FLOW GPM L min PROPANE GPM L min NH Half Coupling Full Coupling Half Couplin Half Coupling Straight Body Tee Body Bottom of Tank Bottom of Tank ping x Bottom of Tank ee ee Top of Tank Position un Position Position Position 2 inch DN 50 Bum ONES See Internal Valve Flow Positions Figure 4 for description of Bottom of Tank Top of Tank and Horizontal Flow Positions Table 2 Closing Flow and Vapor Capacity STYLE VAPOR CAPACITY SCFH SCMH PROPANE 100 psig 6 90 bar Inlet 100 psig 6 90 bar Inlet 100 psig 6 90 bar Inlet siralght Body Tee Body Bottom of Tank Position Horizontal Position Top of Tank Position C477 16 10 C471 16 10 45 000 1274 49 000 1388 66 000 1869 pd C477 16 15 C471 16 15 69 000 1954 69 000 1954 88 000 2492 C477 16 25 C471 16 25 NOT LISTED NOT LISTED NOT LISTED C477 24 26 C471 24 26 127 000 3596 127 000 3596 148 000 4191 C477 24 37 C471 24 37 178 000 5040 178 000 5040 186 000 5267 C477 24 46 C471 24 46 NOT LISTED NOT LISTED NOT LISTED See Internal Valve Flow Positions Figure 4 for description of Bottom o
4. Principle of Operation Refer to the operational schematic Figure 2 In view 1 the valve is held closed by both tank pressure and the valve s closing spring There is no leakage past the resilient seats in the poppet to the valve outlet The valve is opened by moving the operating lever to approximately midpoint in its 70 travel view 2 This allows the cam to place the rapid equalization portion of the valve stem in the pilot opening permitting a larger amount of product to bleed downstream than if the operating lever were moved to the full open position When tank and downstream pressure are nearly equal after a few seconds the excess flow spring pushes open the main poppet view 3 and the operating lever can be moved to the full open position Note If tank pressure is greater than the valve s outlet pressure the main poppet will remain in the closed position If valve outlet piping 4 EXCESS FLOW VALVE CLOSED 3 VALVE OPEN is closed off by other valves however product bleeding through the pilot will increase until it nearly equals tank pressure and the main poppet opens The main poppet will not open if valve outlet piping is not closed off so that the outlet pressure can approach tank pressure Once the main poppet opens a flow greater than the valve s excess flow spring rating or a sufficient surge in flow forces the main poppet closed against the excess flow s
5. Types C471 and C477 Jet Bleed Internal Valves Introduction Types C477 and C471 Jet Bleed Internal Valves are designed to provide rapid equalization of tank pressure and downstream line pressure providing a fast valve response time for quick valve opening These may be used as primary shutoff valves excess flow valves and back check valves for Propane Butane and NH anhydrous ammonia transfers between stationary bulk storage tanks and mobile transports for fill or delivery applications of liquid or vapor gas and on in line applications The valves can be used in installations with or without pumps and compressors Non Underwriters Laboratories UL9 listed types are available with a variety of trim types and body styles and can be used on other compressed gases but the user should check with the factory to make sure the valves are suitable for the particular service Actuation of the valve can be achieved manually by cable or with a pneumatic actuator Features Patented rapid equalization bleed area Provides fast valve response for quick opening Unique Serviceability Features Stainless trim parts and poppet designed with integral wrench flat for easy maintenance Durable Design Stainless poppet and stem interface smoothly for a long wear life Excess Flow Closure Functions when flow exceeds the valves rated capacity or piping is sheared off at the valve Rulon is a Trademark of Saint
6. f Tank Top of Tank and Horizontal Flow Positions C477 24 16 C471 24 16 71 000 2011 71 000 2011 96 000 2718 3 inch DN 80 Bulletin LP 7 C471 C477 VALVE DIFFERENTIAL PRESSURE psig bar FLOW RATE GPM L min PROPANE um m 105 GPM 397 L min Rating 1509 GPM 567 L min Rating se ee eee 250 GPM 946 L min Rating Figure 5 Type C477 471 16 Bottom of Tank Position Flow Curve Half Coupling 20 1 4 18 1 2 16 1 1 14 0 97 12 0 83 10 0 69 8 0 55 6 0 41 VALVE DIFFERENTIAL PRESSURE psig bar 41 0 28 2 0 14 0 FLOW RATE GPM L min PROPANE m 160 GPM 605 L min Rating 265 GPM 1003 L min Rating seeee eee 375 GPM 1419 L min Rating numa 460 GPM 1741 L min Rating Figure 6 Type C477 471 24 Bottom of Tank Position Flow Curve Half Coupling 450 1703 Bulletin LP 7 C471 C477 40 2 8 30 25 1 7 20 1 4 15 1 0 10 0 69 5 0 35 VALVE DIFFERENTIAL PRESSURE psig bar 0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 189 379 568 757 946 1136 1325 1514 1703 1893 2082 2271 2460 2650 FLOW RATE GPM L min PROPANE Figure 7 Type C477 24 Typical Reverse Flow Curve 55 3 8 50 3 4 45 3 1 40 2 8 35 2 4 30 2 1 294v 20 1 4 15 1 0 10 0 69 5 0 35 VALVE DIFFERENTIAL PRESSURE psig bar FLOW RATE GPM L min PROPANE Figure 8 Type C477 16 Typical Re
7. pring view 4 The pilot valve allows a small amount of product to bleed but much less than view 2 where the rapid equalization portion of the stem is placed in the pilot opening When the operating lever is moved to the closed position the valve closes completely and seals tightly view 1 Bulletin LP 7 C471 C477 MODEL NUMBER SIZE SPRING RATE EXAMPLE C 4 7 1 N 24 26 Symbol Description Product Family WN UL Listed NON Non UL Listed Ductile Iron Body NN Steel Body HON Stainless Body 3 Double Fanged Body 4 Sine Flanges Body a Tee Body Fanges and ne Nitrile NBR Standard Only Nitrile NBR has UL Approval TN Neoprene Tm S Steines Steel Bowland Manual Laten Factory nstaled 3e pennon 36 ameno m mne x ennon 1e semon 1s 150 Pm 568 min 1s 100 Pm meums m 220 Gem 888 min as 250 GPM 948 min as 206 GPM 1009 min s 650 Gem 71781 ums The Type C891 has Stainless steel body as Standard S callout on a Type C891 stands for a Stainless steel Gland For each product family not all options are available To check the availability of type numbers specified above contact or visit your local LP Gas Equipment distributor Figure 3 Fisher Internal Valve Numbering System Bulletin LP 7 C471 C4 77 h ll BOTTOM OF TANK POSITION TOP OF TANK POSITION Ea HORIZONTAL POSITION IN LINE PIP
8. r Availability of Non Standard Options LP Gas Equipment Emerson Process Management Regulator Technologies Inc USA Headquarters McKinney Texas 75069 1872 USA Telephone 1 800 558 5853 Telephone 1 972 548 3574 For further information visit www fisherregulators com The Emerson logo is a trademark and service mark of Emerson Electric Co All other marks are the property of their prospective owners Fisher is a mark owned by Fisher Controls International LLC a business of Emerson Process Management The contents of this publication are presented for informational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or their use or applicability We reserve the right to modify or improve the designs or specifications of such products at any time without notice Emerson Process Management Regulator Technologies Inc does not assume responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any Emerson Process Management Regulator Technologies Inc product remains solely with the purchaser a lt gt EMERSON Emerson Process Management Regulator Technologies Inc 2010 2012 All Rights Reserved
9. verse Flow Curve A B MNPT B MNPT A APPROXIMATE TOP OF BOSS C 1 TBS TOF c OR COUPLING 1 4 INCH COUPLING CLOSED 1 4 INCH FNPT 70 Y mu 4 SWING 70 SWING C471 SERIES C477 SERIES Figure 9 Dimensions Table 3 Dimensions DIMENSIONS INCHES mm TYPE A B INSTALLATION CLEARANCE BER INCH FNPT DN INCH MNPT DN 2 S i ce le T ow Fe DIAMETER C471 16 2 50 2 50 8 07 205 2 40 61 4 05 103 2 76 70 2 66 68 10 00 254 C471 24 3 80 3 80 9 00 229 2 60 66 4 57 116 3 25183 3 26 83 13 38 340 C477 16 2 50 2 50 8 07 205 2 40161 4051403 eb ie i 10 00 254 C477 24 3 80 3 80 9 00 229 2 60 66 4577116 d eee eee 13 38 340 Bulletin LP 7 C471 C477 Ordering Information To order refer to the table below and specify the type number that satisfies your requirement Then contact or visit your local LP Gas Equipment Distributor for availability cm an aco TYPE NUMBER FLANGE CONNECTION SIZE INCHES ACTUATION METHOD AND DEVICE 0477 16 10 0471 16 10 EST Na C477 16 15 C471 16 15 2 inch MNPT DN 50 pa ea aia Type P639 Type P340 C477 16 25 C471 16 25 DN 50 x 50 Tee Body C477 24 16 C471 24 16 3 inch FNPT 3 inch 0477 24 26 0471 24 26 DN 80 Straight DN 80 3 inch MNPT DN 80 2 x 3 inch ENPT Type P639 Type P340 C477 24 37 C47 1 24 37 EN E pun Tee Body X ee Body C477 24 46 C471 24 46 Please Contact Your Local LP Gas Equipment Distributor fo
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