Related Manuals for Norriseal Series 2700A
Summary of Contents for Norriseal Series 2700A
- Page 1 PERATING AND AINTENANCE ANUAL Series 2700A Control Valve Series 2700A Engineered Performance...
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Page 2: Table Of Contents
PERATING AND AINTENANCE ANUAL Series 2700A Control Valve TABLE OF CONTENTS INTRODUCTION Scope Description Valve Identification 1.0 VALVE INSTALLATION 2.0 VALVE MAINTENANCE 2.1 Actuator Disassembly 2.2 Actuator Reassembly 2.3 Valve Disassembly (Balanced Plug Control Trim) 2.3 Valve Disassembly (Unbalanced Plug Control Trim) 2.3 Valve Disassembly (Balanced Cage Control Trim) -
Page 3: Introduction
The Series 2700A bon- fluid conditions. Since some body/trim tioners. nets have a NPT thread, if you wish materials are limited in their pressure to add an optional packing lubricator. -
Page 4: Valve Maintenance
PERATING AND AINTENANCE ANUAL Series 2700A Control Valve 2.0 Valve Maintenance pipeline. For threaded (NPT) NOTE: An increase in plug seating force will also require an increase in the bodies, use pipe thread sealant. WA R N IN G ! -
Page 5: Actuator Disassembly
The seating surfaces of the valve plug and seat ring are A parts list drawing showing the valve configuration is available. Please contact your Norriseal critical for tight shutoff. Assume all of sales representative for this information. -
Page 6: Valve Disassembly (Unbalanced Plug Control Trim)
PERATING AND AINTENANCE ANUAL Series 2700A Control Valve just above the guide. If the valve body by means of a seat adapter. C A U T IO N ! plug needs replacing, always Remove the valve bonnet from Use care to avoid damaging gasket... -
Page 7: Trim Inspection
PERATING AND AINTENANCE ANUAL Series 2700A Control Valve 2.4 Trim Inspection 2.6 Replacement of Teflon lapping of the surfaces. V-Ring Packing With the compound applied to the (Non-Adjustable) Visually inspect the valve plug plug, fit the seat against the plug... -
Page 8: Replacement Of Valve Compression Packing
PERATING AND AINTENANCE ANUAL Series 2700A Control Valve 2.6 Replacement of Valve 2.7 Packing Lubrication a. Place O-ring into cavity of plug butt. Compression Packing A lubricator valve is provided as b. Install the insert into the (Adjustable) an option with adjustable packing butt and recess. -
Page 9: Valve Reassembly (Reduced Unbalanced Plug Control Trim)
PERATING AND AINTENANCE ANUAL Series 2700A Control Valve Insert the roll pin until it is flush valve stem. Screw the adapter Reinstall the stem connector to with the outside diameter of the onto the stem until the pin hole connect the valve stem to the plug. -
Page 10: Valve Reassembly (Reduced Balanced Cage Control Trim)
Norriseal provides four repair kits for Lower the bonnet/stem/plug as- following additional steps required to use in valve maintenance: a valve... -
Page 11: Table 4A Bolt Torque For Cstl Bodies
PERATING AND AINTENANCE ANUAL Series 2700A Control Valve Tab l e 4A – Tabl e 4 B – Final Bolt Torques for Final Bolt Torques for Carbon Steel Bodies Stainless Steel Bodies (all values are in Foot (all values are in Foot... -
Page 12: Table 5 Troubleshooting
PERATING AND AINTENANCE ANUAL Series 2700A Control Valve Table 5 Tr ou bl e D iagn os i s Symptom Probable Cause(s) Corrective Action(s) Valve will not cycle when instrument air is Broken valve stem. Replace stem. applied to the actuator. - Page 13 PERATING AND AINTENANCE ANUAL Series 2700A Control Valve Notes: P.O. Box 40525, Houston, Texas USA 77240-0525 Tel: 713·466·3552 · Fax: 713·896·7386 www.norriseal.com Page 11 of 12 2700A — ©2015, February, 2015...
- Page 14 PERATING AND AINTENANCE ANUAL Series 2700A Control Valve This page intentionally left blank. P.O. Box 40525, Houston, Texas USA 77240-0525 Tel: 713·466·3552 · Fax: 713·896·7386 www.norriseal.com Page 12 of 12 2700A — ©2015, February, 2015...
- Page 15 PERATING AND AINTENANCE ANUAL Series 2700A Control Valve This page intentionally left blank. P.O. Box 40525, Houston, Texas USA 77240-0525 Tel: 713·466·3552 · Fax: 713·896·7386 www.norriseal.com 2700A — ©2015, February, 2015...
- Page 16 H E A D Q U A R T E R S , M A N U F A C T U R I N G P L A N T A N D S A L E S www.norriseal.com 11122 West Little York Houston, Texas 77041 T: (713)466-3552 F: (713)896-7386 Due to the continuous improvement at Norriseal, specifications and/or prices are subject to change without notice or obligation.