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Anderson Greenwood Pilot Operated Relief Valves
Anderson Greenwood Spring Loaded Relief Valves
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Corrosion & Erosion Monitoring
Density - Viscosity
Flame and Gas Detection
Flow
Flow Measurement & Blending Systems
Gas Analysis
Hygienic Measurement
Industrial Heat Tracing
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Level Measurement
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Tank Gauging
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Manufacturing Execution Systems
Midstream Oil and Gas Applications
Reservoir Management Software
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AlertTrack™ SNAP-ON™
AMS Inspection Rounds
AMS SNAP-ON White Paper
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Quickview+
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Vibration Analysis
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Relief Valve Spare Pool Program
Asset Optimzation
Instrumentation & Calibration
Overpressure Protection
Remote Asset Monitoring
Remote Assistance Program
Start-up & Commissioning
Back
Turnarounds & Outages
Nozzle Testing
Turnaround Support
Video: Quarterbacking An Outage Coordination
Customer Story: Consolidating Resources
Customer Story: Planned Shutdowns
Turnarounds & Outages
Back
Upgrades & Modifications
Video: Pressure Relief System Evaluation
Video: Protecting Tank Integrity
Video: Warehouse & Assembly Operations
Upgrades & Modifications
Valve Automation & Assembly
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FIELDVUE™
FlowScanner™
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Video: Valve Signature for Reliability
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Products
Valves, Actuators & Regulators
Isolation and Shut off Valves
Check Valves
Keystone F86 Swing Type Check Valve
Overview
High capacity, spring loaded swing type wafer check valve
Resources
All
Data Sheets & Bulletins
Manuals & Guides
PDF
Size: 2.1mb
Data Sheets & Bulletins
Data Sheets: Figure 86 Check Valve Wafer Swing type, Keystone-EN
PDF
Size: 635kb
Manuals & Guides
Manuals: Figure 85 & 86 Check Valves Operating & Safety Instructions, Keystone-EN
PDF
Size: 194kb
Manuals & Guides
Manuals: Figure 85/86 Check valves, Keystone-EN
PDF
Size: 250kb
Manuals & Guides
Manuals: Model Code Addendum - Keystone Figure 86, Keystone-EN
Features
Lightweight, wafer type check valve with face-to-face dimensions according ISO 5752, table 5 long
High flow capacity featuring a special shaped disc with a large opening angle resulting in high Kv values
Spring loaded disc for positive shut-off
Choice of cast iron or stainless steel body types
Field replaceable O-ring seat
Internal travel stop prevents the disc from slamming against the pipe
Excellent low pressure shut-off The standard low pressure shut-off is less than 0.1 bar (10 kPa)
Slam free operation
Optional heavy spring for slam free operation in systems with high decelerations
Optional light spring for systems with low line velocities
Optional adjustable travelstop for system with reduced inner diameter pipe