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ORIGINAL INSTRUCTIONS
Installation, Operation
& Maintenance Manual
Model B177 External Automatic Bypass Valve
Warning: (1) Periodic inspection and maintenance of Corken products is essential. (2) Inspection, maintenance and installation of Corken products
must be made only by experienced, trained and qualified personnel. (3) Maintenance, use and installation of Corken products must comply with
Corken instructions, applicable laws and safety standards (such as NFPA Pamphlet 58 for LP-Gas and ANSI K61.1-1972 for Anhydrous Ammonia).
(4) Transfer of toxic, dangerous, flammable or explosive substances using Corken products is at user's risk and equipment should be operated
only by qualified personnel according to applicable laws and safety standards.
Model B177 External
Automatic Bypass Valve
Solutions beyond products...
IH102E
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Related Manuals for Corken B177-2
Summary of Contents for Corken B177-2
- Page 1 Warning: (1) Periodic inspection and maintenance of Corken products is essential. (2) Inspection, maintenance and installation of Corken products must be made only by experienced, trained and qualified personnel. (3) Maintenance, use and installation of Corken products must comply with Corken instructions, applicable laws and safety standards (such as NFPA Pamphlet 58 for LP-Gas and ANSI K61.1-1972 for Anhydrous Ammonia).
- Page 2 Corken One Year Warranty CORKEN, INC. warrants that its products will be free from defects in material and workmanship for a period of one year from date of installation, provided that the warranty shall not extend beyond twenty-four (24) months from the date of shipment from CORKEN.
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Page 3: Table Of Contents
Table of Contents APPLICABLE NOTICES FOR ATEX 2014/34/EU CONFORMITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 FEATURES OF THE B177 EXTERNAL AUTOMATIC BYPASS VALVE . -
Page 4: Applicable Notices For Atex 2014/34/Eu Conformity
Notice! Surface temperature range File number T4 (135°C) 275°F Corken bypass valves should only be installed in LPG & NH systems that have been designed by qualified engineering personnel and operated and maintained by qualified technicians. The system must conform to... -
Page 5: Features Of The B177 External Automatic Bypass Valve
The minimum size for the Automatic Bypass Valve balance line is indicated in the following table. The CORKEN B177 external bypass valve is designed to Valve Model Minimum Balance Line Tubing Size maintain a constant differential pressure across a sliding... - Page 6 Stationary pump applications equipped with an 12. Open the shut-off valve located on the pump discharge line downstream of the external bypass valve and electric motor drive: continue pumping as needed. 1. Install liquid-filled pressure gauges equipped with a needle valve or snubber in the following locations: WARNING: Do not adjust the external bypass valve beyond the range of the spring being used .
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Page 7: Model Number Identification Code And Available Options
Appendix A—B177 Model Number and Identification Code Base Model B177-2 B177-2.5 Model Number Base X X X Inlet 2" NPT 2-1/2" NPT Outlet 2" NPT 2-1/2" NPT Maximum flow rate (gpm) Ship weight 45 (20.4) 45 (20.4) lb (kg) 10–40 psig differential range No charge option 30–80 psig differential range... -
Page 8: Specifications
Appendix B—Specifications Equipment Type Applications Low pressure build-up bypass valve 30 to 100 gpm Used in bulk plant loading and unloading pumps. (9.1 to 79.5 m /hr) Features & Benefits Can also be used as a differential back-pressure valve to assure adequate pressure on meters. Operating Specifications Inlet 2", 2-1/2"... -
Page 9: Outline Dimensions
Appendix D—Outline Dimensions for Model B177 Adjusting stem: turn counterclockwise to increase pressure setting 1/2" NPT (connect to vapor section of storage tank) 16-37/64 (42.11) 5-3/4 (14.61) Outlet CORKEN (10.16) Inlet 2-7/8 5-1/4 (7.30) (10.16) (13.34) All dimensions are in inches (centimeters). -
Page 10: Parts Details
Appendix E—Parts Details for Models B177-2 and B177-2 .5 1/2" NPT Connection O-ring Code A Buna-N B Neoprene ®a D Viton ®a PTFE Ref. Ref. Part No. Description Part No. Description 2080 Lock 1700 Seat - PTFE 1698 Bonnet 1703 Retainer plate Socket head - 3/8-16 X 1-1/4",... - Page 12 Solutions beyond products... CORKEN, INC. • A Unit of IDEX Corporation 9201 North I-35 Service Road, Oklahoma City, OK. 73131 Phone (405) 946-5576 • Fax (405) 948-7343 Visit our website at http://www.corken.com or e-mail us at cocsalesdept@idexcorp.com @CorkenInc Printed in the U.S.A.
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