Vertical Indicator Post

Our vertical indicator post (VIP) is a UL/FM-approved solution designed to visually show the open/closed status of buried 4"–12" gate valves in fire sprinkler and water supply systems. Built for reliable outdoor use, it features an adjustable buried length (570mm–1500mm) to fit diverse installation depths, with a rugged, corrosion-resistant construction that meets UL 789, ULC/ORD-C789, and FM 1110 standards.
✅ Key Benefits
• Clear, at-a-glance valve position monitoring to eliminate operational errors
• Quick, tool-free length adjustment for fast on-site installation
• Heavy-duty design for long-term performance in harsh underground environments
• UL, CUL, and FM certified for compliance with global fire protection codes

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Product Introduction

Product Overview

A vertical indicator post is a practical fire protection accessory built to solve one core problem: keeping track of buried gate valves without excavation. Installed above ground and directly linked to underground 4"–12" gate valves, it delivers a permanent, easy-to-read display of whether a valve is open or closed.

It's widely used in commercial buildings, industrial plants, municipal water networks and fire sprinkler systems. Maintenance crews and emergency responders can quickly confirm valve positions on site, avoiding time-consuming digging and misoperation. Its adjustable extension rod fits most standard burial depths, making it a flexible choice for nearly every underground valve installation project.

Product Usage & Installation

Application Scenarios

■Buried main line gate valves in fire sprinkler systems

■Underground pipeline valves for municipal water supply

■Buried gate valves in industrial fluid processing pipelines

■ Fire water supply valves for commercial and public buildings

Installation Steps

1. Take off the top indicator cover of the post gently.

2. Adjust the connecting rod to fit the actual burial depth of the gate valve, then trim any excess length if needed.

3. Make sure the gate valve is fully closed before connecting the post to the valve stem.

4. Adjust the top indicator to align with the "SHUT" marking accurately.

5. Tighten all flange bolts between the indicator post and the gate valve to secure the connection.

6. Put the indicator cover back in place to finish the installation.

Technical Specifications

Item	Details
Product Name	Vertical Type Indicator Post
Compatible Valve Size	4" (DN100) – 12" (DN300) buried gate valves
Adjustable Underground Length	570mm – 1500mm
Certifications	UL, CUL, FM Approved
Compliance Standards	UL 789, ULC/ORD-C789, FM 1110
Main Body Material	Ductile Iron
Connecting Rod Material	Carbon Steel
Surface Treatment	Red epoxy powder coating, corrosion resistant
Working Pressure	300 PSI (20.7 Bar)
Operating Temperature	-20°C to 80°C (-4°F to 176°F)
Flange Standard	ASME B16.5 Class 150, fits most standard gate valves

FAQ

01.What gate valve sizes work with this indicator post?

It's compatible with 4" (DN100) to 12" (DN300) standard buried gate valves, the most commonly used sizes in fire protection and water supply systems.

02.Can it be used for non-fire water pipelines?

Yes, it works for any buried gate valve that needs above-ground status monitoring, including municipal water, industrial process pipelines and more.

03.Is professional installation required?

It's simple to install with the included manual, and any qualified plumber or fire protection technician can complete the job without special tools.

04.Is there a product warranty?

We provide a 1-year manufacturer warranty against material and workmanship defects, plus ongoing technical support for all customers.

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