Related Manuals for Continental Disc Corporation GROTH 12F-TWO
Summary of Contents for Continental Disc Corporation GROTH 12F-TWO
- Page 1 Installation, Operation and Maintenance Manual for Pressure Relief Valve-Pipe Away (Weight loaded) Model 12F-TWO IOM-12E Ref. I.D.: 102487...
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Page 2: Table Of Contents
TABLE OF CONTENTS SAFETY WARNINGS INTRODUCTION INSTALLATION DESIGN AND FUNCTION MAINTENANCE MODEL NUMBER IDENTIFICATION PRODUCT LIMITED WARRANTY Page 2 of 11... -
Page 3: Safety Warnings
SAFETY WARNINGS THIS SECTION IS AN OVERVIEW OF SAFETY GUIDELINES THAT SHOULD BE FOLLOWED DURING THE INSTALLATION, OPERATION AND MAINTENANCE OF PRESSURE RELIEF VALVES.TO UNDERSTAND THE CONTEXT OF THESE INSTRUCTIONS AND WARNINGS, IT IS NECESSARY TO COMPLETELY READ AND UNDERSTAND THE CONTENTS OF THIS MANUAL. -
Page 4: Introduction
INTRODUCTION Pressure relief valves are used on liquid storage tanks and other process vessels or systems to prevent structural damage due to excess internal pressure. Storage tanks are pressurized when liquid is pumped in, compressing the existing vapor or when rising temperatures cause increased evaporation or expansion of existing vapor.Conversely, a vacuum condition may be created when pumping out or due to falling temperature. -
Page 5: Installation
INSTALLATION A typical valve installation on a tank or vessel is illustrated in Figure 1, using a Model 12F-TW0 Pressure Relief Valve-Pipe away. Groth's weight loaded Pressure Relief Valves are designed to provide tank protection for pressure up to 24 OSIG settings. The valves provide full rated flow capacity at 100% over-pressure. Consult factory for performance under other conditions. - Page 6 Table 1 - Bolt Torque-150# ASME Flange Connections* Mounting Bolt Torque – Lb-ft (N-m) Raise Face -CS/SS Flat Face- Alum. Flange Total No. of Holes 2" 30 (41) 30 (41) 3" 46 (62) 38 (52) 4" 30 (41) 30 (41) 6"...
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Page 7: Design And Function
DESIGN AND FUNCTION Tank protection equipment typically includes an operating valve which is designed to provide pressure/vacuum relief under normal pump in/out and thermal breathing conditions. An emergency relief valve can also provide both pressure and vacuum relief and normally it is sized to provide pressure relief if there is a fire in the immediate vicinity of the tank. -
Page 8: Maintenance
MAINTENANCE Groth Corporation recommends that all service performed on a pressure relief valve is done at a Groth Authorized Repair Dealer. Contact Groth Corporation for your local authorized repair dealer. Trained mechanics with specialized test equipment will ensure that the valve is accurately set. It is important to regularly inspect the diaphragm, guides and seating surfaces to ensure the valve can open freely. - Page 9 WARNING: When assembling a Pressure valve, always use the correct length stem (as specified in Table 3), put the pressure pallet assembly back in the original location and ensure that the stem is straight and fits into the guide in the cover.
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Page 10: Model Number Identification
MODEL NUMBER IDENTIFICATION MODEL # SIZE MATERIAL OPTIONS 1 2 E 1 2 F 5 SS Z Special 5 SS Z Special 1 AL 3 C. Steel 0 No Option 5 SS Z Special Option Z Special 0 No Jacket J Steam Jacket 0 No Option S Spacer... -
Page 11: Product Limited Warranty
PRODUCT LIMITED WARRANTY Seller warrants that products which are manufactured by Seller, are manufactured in accordance with published specifications and free from defects in materials and/or workmanship for a period of (12) twelve months. Seller, at its option, will repair or replace any products returned intact to the factory, transportation charges prepaid, which Seller, upon inspection, shall determine to be defective in material and/or workmanship.
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