Wall Type Indicator Post

Wall Type Indicator Post Definition and Components

Wall Type Indicator Post Model 9101 is a wall-mounted pressure indicating device used in fire protection and industrial systems to visually display the status (open/closed) of buried or concealed underground valves. Wall Post Indicator Valve provides clear visual indication of valve position without excavation.

Main Components:

Indicator Head Assembly

• Target Plate: Red/white or yellow/black rotating disc
• Indicator Glass: Clear protective lens
• Position Markings: "OPEN" and "SHUT" labels
• Lighting Kit (Optional): Internal illumination for low-light areas

Drive Mechanism

• Drive Shaft: Stainless steel rod connecting to underground valve stem
• Gear Box: Converts rotary motion (if needed)
• Adjustable Coupling: For precise alignment

Housing & Mounting

• Weatherproof Housing: Aluminum or stainless steel enclosure
• Wall Bracket: Adjustable mounting plate
• Conduit Entry: For optional electrical connections
• Drain Holes: Prevents moisture accumulation

Connection System

• Extension Rod: Connects to buried valve stem
• Universal Joints: For angular misalignment
• Rod Guides: Support and alignment
• Rodding Access Cover: For maintenance access

Role, Characteristics, and Application Scenarios of Wall Type Indicator Post in Pipelines

Post Indicator Valve Primary Functions:

• Visual Indication: Clearly shows if underground valve is OPEN or SHUT
• Remote Monitoring: Allows valve status checking without excavation
• Position Confirmation: Verifies valve position for maintenance/testing
• Tamper Evidence: Shows if valve has been operated

Operational Features:

• Direct Mechanical Link: No electronics required for basic operation
• Weatherproof Design: Suitable for outdoor installation
• Easy Installation: Mounts on walls, columns, or posts
• Maintenance-Free: Sealed bearings, corrosion-resistant materials
• Optional Features: Lighting, switch contacts for remote signaling

Application Scenarios:

• Fire Protection Systems: Indicating post for buried fire main valves
• Water Utilities: Municipal water distribution control valves
• Industrial Plants: Process line isolation valves
• Irrigation Systems: Main control valves
• Marine Facilities: Dock hydrant control valves

Wall Type Indicator Post Standards: Materials, Design, and Connections

Material Standards:

• Housing: Aluminum alloy (EN AW-6060) or Stainless Steel 304/316
• Target Plate: Anodized aluminum or ABS plastic
• Drive Shaft: Stainless Steel 304 (ASTM A276)
• Bearings: Sealed stainless steel or bronze
• Fasteners: Stainless steel A2/A4 grade

Design Standards:

• UL/FM Approved: For fire protection applications
• AWWA C504: Standard for indicator posts
• BS 5163: British standard for indicator plates
• ISO 9001: Quality management system
• IP Rating: IP65 minimum for outdoor use

Fire Valve Connection Standards:

• Valve Connection: Typically 1" square or 1-1/4" square for valve stem
• Extension Rod: 3/4" or 1" diameter, threaded connections
• Mounting: Wall bracket with slotted holes for adjustment
• Electrical: 1/2" NPT conduit entry for optional switches

 How to Select Wall Type Indicator Post

Purchasing Steps:

Technical Specification:

• Valve stem size and type (square, hex, spline)
• Required extension length (ground to mounting point)
• Environmental conditions (coastal, chemical, temperature)
• Optional features (lighting, limit switches)
• Color scheme (standard: red/white or yellow/black)

Supplier Selection:

• Choose manufacturers with UL/FM listings
• Verify experience with similar installations
• Check customization capabilities
• Review installation support services

Documentation Requirements:

• UL/FM certificates
• Material certifications
• Installation drawings
• Operation and maintenance manuals
• Testing certificates

Commercial Considerations:

• Lead Time: 2-4 weeks standard
• Payment: Typically net 30
• Warranty: 2-5 years
• Shipping: Usually small parcel
• MOQ: 1 unit typically

Pre-Shipment Inspection for Export Wall Type Indicator Post and Key Considerations

Inspection Checklist:

Export Precautions:

• Corrosion Protection: VCI paper for internal components
• Shaft Protection: Plastic caps on connection ends
• Glass Protection: Bubble wrap or foam protection
• Documentation: Include multilingual installation guide
• Small Parts: Bag and label all fasteners separately

Wall Type Indicator Post Material List