Related Manuals for Continental Disc Corporation GROTH 2000A
Summary of Contents for Continental Disc Corporation GROTH 2000A
- Page 1 Installation, Operation and Maintenance Manual For Models 2000A, 2050A, Fiberglass Emergency Relief Valve...
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Page 2: Table Of Contents
TABLE OF CONTENTS: INTRODUCTION: DESIGN, FUNCTION & OPERATION GENERAL SAFETY INSTRUCTIONS SAFETY WARNINGS INSPECTION AND INSTALLATION PREVENTIVE MAINTENANCE MODEL 2000A DISASSEMBLY & ASSEMBLY MODEL 2050A DISASSEMBLY & ASSEMBLY TESTING AND SETTING PROCEDURE MODEL INFORMATION... -
Page 3: Introduction
INTRODUCTION: Groth’s Emergency Relief Valve (ERV) is designed to provide emergency relief capacity beyond that furnished by the normal operating pressure relief valve on the tank. They are used on liquid storage tanks and other process vessels or systems to prevent structural damage due to excess internal pressure or vacuum that could result under emergency situations due to fire exposure or failure of the inert gas blanketing system. -
Page 4: Design, Function & Operation
DESIGN, FUNCTION & OPERATION The 2000A Series was designed as a cost effective valve that would protect a tank by providing emergency pressure relief caused by fire or other factors that could make the pressure rise. Groth manufactures two models in this series [Table 1] for pressure relief; and vacuum relief. Table 1 : Model Identification Model Pressure... -
Page 5: General Safety Instructions
GENERAL SAFETY INSTRUCTIONS This section is an overview of safety guidelines that should be followed during the installation, operation and maintenance of Groth Pressure / Vacuum 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 6: Installation
INSPECTION The ERV is packed and supported to prevent damage or contamination during shipping. It should be similarly protected during subsequent handling and storage. Before installation inspect the unit visually. If there are indications of physical damage or internal contamination, the valve must be disassembled, cleaned and inspected before installation. Visually inspect the valve for any sign of damage that may have occurred in shipment and report this to the carrier. -
Page 7: Preventive Maintenance
Make up the final torque and check that no further nut rotation occurs. Pallet assembly peripheral guides with the body bore and carefully lower the cover assembly until it seats against the body. PREVENTIVE MAINTENANCE The 2000A Series valves do not require routine lubrication or adjustments, but should be checked periodically, at least twice a year, to confirm that the valve is functioning properly. -
Page 8: Model 2000A Disassembly & Assembly
MODEL 2000A FIBERGLASS DISASSEMBLY & ASSEMBLY MODEL 2000 GROTH CORPORATION HOUSTON TX, USA BILL OF MATERIAL ITEM DESCRIPTION STANDARD MATERIALS OF CONSTRUCTION (1) OPTIONAL FEATURES (2) FURAN 411-45 470-36 BODY FURAN DERAKANE® DERAKANE® COVER FURAN DERAKANE® DERAKANE® HEX BOLT ALLOY C276 ALLOY C276 ALLOY C276 HEX NUT... -
Page 9: Model 2050A Disassembly & Assembly
MODEL 2050A DISASSEMBLY & ASSEMBLY Figure 6: Pallet Support (2050A) MODEL: 2050 GROTH CORPORATION HOUSTON TX, USA BILL OF MATERIAL ITEM DESCRIPTION STANDARD MATERIALS OF CONSTRUCTION (1) OPTIONAL FEATURES FURAN DERAKANE® DERAKANE® BODY FURAN 411-45 470-36 COVER, PRESS FURAN 411-45 470-36 *DIAPH., PRESS WEATHERHOOD... - Page 10 2050A Disassembly Read “Warning” sections on page 5. Remove the valve from the tank. Remove nuts [6], weather hood [4], ground cable [13] and screen [16]. Take measurement ‘A’ from Figure 7 before removing nuts [10]. Place a short length of pipe (minimum 6” high) beneath the pallet assembly [24] to prevent it from falling. Back the top nut [10] completely off the stem.
- Page 11 12. Place the spring [11] and spring button [9] over the vacuum pallet stem [12]. 13. Assemble the bottom nut [10] onto top of stem and adjust to compress the spring until the “A” dimension is achieved. WARNING Failure to properly set a spring loaded valve can result in improper valve operation and can cause tank damage. 14.
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Page 12: Testing And Setting Procedure
TESTING AND SETTING PROCEDURE SETUP After final assembly, mount the valve on a tank vent test stand or on a blind flange with instrument tap. Use appropriate gaskets and bolt using at least half of the available flange holes. Tighten fasteners alternately in a crossing pattern to ensure that the ERV body is not distorted or warped. -
Page 13: Model Information
MODEL INFORMATION The nameplate on the Groth Series 2000A Emergency Relief Valves contains the model number, serial number, set pressure and flow capacity. The model number contains additional information about materials of construction and options. The following chart will assist in relating the model number to the specifications of your pilot operated valve: Notes: Include model number when ordering.
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