Advertisement
Quick Links
Instruction Manual
D103813X012
February 2022
860 and 960 Series Spring-Loaded Pressure/
Vacuum Relief Valve (ATEX Approved)
Table of Contents
Introduction .................................................................. 1
Specifications .............................................................. 2
Product Identification and Marking .............................. 4
Principle of Operation .................................................. 4
Installation ................................................................... 5
Maintenance ................................................................ 9
Weight Information .................................................... 11
Valve Repair .............................................................. 11
▲
WARNING
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion,
fire and/or chemical contamination
causing property damage and personal
injury or death.
Enardo spring-loaded pressure/vacuum
relief valve must be installed, operated
and maintained in accordance with
federal, state and local codes, rules
and regulations, and Emerson Process
Management Regulator Technologies
Tulsa, LLC (Emerson) instructions.
Failure to correct trouble could result in
a hazardous condition. Call a qualified
service person to service the unit.
Installation, operation and maintenance
procedures performed by unqualified
person may result in improper
adjustment and unsafe operation. Either
condition may result in equipment
damage or personal injury. Only a
qualified person shall install or service
the spring-loaded pressure/vacuum
relief valve.
860 and 960 Series
Figure 1. Model 860 Spring-Loaded Pressure/
Vacuum Relief Valve
Figure 2. Model 960 Spring-Loaded Pressure/
Vacuum Relief Valve
Introduction
Scope of the Manual
This Instruction Manual provides instructions
for installation, maintenance and parts ordering
information for the 860 and 960 Series spring-loaded
pressure/vacuum relief valve (SL-PVRV).
Advertisement
Related Manuals for Emerson ENARDO 860 Series
Summary of Contents for Emerson ENARDO 860 Series
-
Page 1: Table Of Contents
Enardo spring-loaded pressure/vacuum relief valve must be installed, operated and maintained in accordance with federal, state and local codes, rules and regulations, and Emerson Process Management Regulator Technologies Tulsa, LLC (Emerson) instructions. Figure 2. Model 960 Spring-Loaded Pressure/ Failure to correct trouble could result in Vacuum Relief Valve a hazardous condition. -
Page 2: Specifications
860 and 960 Series Specifications The Specifications section on this page provides specifications for the 860 and 960 Series spring-loaded pressure/vacuum relief valve. Specification is stamped on the nameplate attached to the relief valve. Refer to Product Identification and Marking section for the nameplate details. Available Construction Construction Materials Housing: Aluminum, Stainless steel or... - Page 3 860 and 960 Series MODEL 860 MODEL 861 MODEL 960 MODEL 961 MODEL 962 MODEL 963 Figure 4. 860 and 960 Series Spring-Loaded Pressure/Vacuum Relief Valve Available Models Product Description • Model 860: Pressure/Vacuum Relief Valve - Pipe-Away The 860 and 960 Series spring-loaded pressure/ •...
-
Page 4: Product Identification And Marking
860 and 960 Series II 1 G Ex h IIC T6 Ga OUTER HOUSING OF STAINLESS STEEL, CARBON STEEL OR COATED ALUMINUM II 2 G Ex h IIC T6 Gb OUTER HOUSING OF UNCOATED ALUMINUM Figure 5. ATEX Certified Markings Product Identification and Marking Principle of Operation Hazardous Locations... -
Page 5: Installation
Pressure Flow 860 and 960 Series PRESSURE FLOW VACUUM FLOW Vacuum Flow Pressure Flow Figure 6. Pressure and Vacuum Flow Installation 2. Orient valve in desired direction. Models 860 and △ CAUTION 861 require the pipe-away connection flange to be properly oriented before the base is bolted down. - Page 6 860 and 960 Series Installing Pressure/Vacuum Relief Valves with Weight-loaded Pallets Note The following steps 1 to 7 apply only to valves that have a weight-loaded vacuum or pressure pallet. These steps do not apply to pallets that are spring-loaded on both the pressure and vacuum sides.
- Page 7 860 and 960 Series 5. To adjust valve settings higher than minimum, 7. Attach the valve to the appropriate mating flange use the weights included with the shipment to using proper gasket. To ensure proper function, increase the pressure setting. Weights are packed install the valve to a level horizontal surface so separately within the unit shipping package and the pallet will move vertically.
- Page 8 860 and 960 Series MODEL 860 MODEL 860 MODEL 861 MODEL 963 PIPE-AWAY SPRING-LOADED PRESSURE/VACUUM RELIEF VALVE MODEL 960 MODEL 960 MODEL 961 MODEL 962 VENT-TO-ATMOSPHERE SPRING-LOADED PRESSURE/VACUUM RELIEF VALVE Figure 7. 860 and 960 Series Common Valve Configurations...
-
Page 9: Maintenance
860 and 960 Series HEX NUTS TYPICAL SCREWS 4 PLACES ENLARGED HOLES TYPICAL WITH HEX NUTS 3 PLACES TYPICAL 3 PLACES SCREWS TYPICAL 4 PLACES WING NUTS TYPICAL 3 PLACES 4 AND 6 IN. RELIEF VALVES 2 AND 3 IN. RELIEF VALVES Figure 8. - Page 10 860 and 960 Series Figure 9. Weights on Pallet 4. The valve contains a single spring or a multiple 11. Reassemble the valve in reverse order nested spring arrangement. Inspect the springs from disassembly. and other internal parts for signs of deterioration 12.
-
Page 11: Weight Information
This feature causes minimal downtime if there is an individual setting of each weight is either etched or equipment breakdown or malfunction. imprinted into the weight. Emerson offers several A damaged valve may require replacement of the different sizes of pressure/vacuum relief valves. To... - Page 12 Technologies, Inc. All rights reserved. 02/22. Emerson Automation Solutions The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Enardo™ is a mark owned by Regulator Technologies Tulsa, LLC, a business of Emerson...