Sight Glass Valve Types, HSN Code, Prices & Industrial Uses – Complete Guide

 



Introduction

Sight glass valves are essential components in industrial pipelines, especially in Udhhyog units. They allow operators to visually inspect the flow of liquids and gases within a system. Understanding the types, prices, HSN codes, and applications is key to making the right purchasing decision.

What is a Sight Glass Valve?

A sight glass valve is a transparent component installed in pipelines, tanks, or vessels to monitor the flow and condition of fluids or gases. Commonly used in chemical plants, food industries, and hydraulic systems, they help ensure operational safety and efficiency.

Key Features:

  • Visual flow monitoring

  • Corrosion-resistant materials

  • Suitable for high-pressure environments

🔧 Types of Sight Glass Valves

1. Tubular Sight Glass Valve

  • Installed between two pipe flanges

  • Offers 360-degree visibility

  • Ideal for medium-pressure applications

2. Double Window Sight Glass Valve

  • Two toughened glass windows

  • High-pressure and high-temperature capabilities

  • Used in power plants and chemical processing units

3. Full View Sight Glass

  • Entire body is transparent

  • Best for observing liquid color and clarity

  • Common in food and pharmaceutical Udyog

4. Reflex Sight Glass

  • Uses prismatic glass for better visibility

  • Cost-effective for steam and boiler lines

5. Threaded Sight Glass Valve

  • Easy to install and remove

  • Suitable for compact industrial setups

 Sight Glass Valve Price in India

Prices vary based on size, material, pressure rating, and design.

TypeSize RangePrice Range (INR)Material Options
Tubular½” to 2”₹450 – ₹2,500SS304, SS316, Brass
Double Window½” to 4”₹1,200 – ₹6,000Cast Iron, SS316
Full View½” to 3”₹800 – ₹3,800Glass + SS Frame
Threaded Valve Kit½” to 1”₹650 – ₹2,200Bronze, SS
Reflex½” to 2”₹1,500 – ₹4,500Borosilicate + MS/SS

Note: Prices are approximate and vary by city, brand, and customization.

 Sight Glass Valve Kit: What’s Included?

  • Main body with sight window

  • Gaskets and bolts

  • Optional threaded connectors

  • Valve body (for combined kits)

Sight Glass Valve HSN Code

ProductHSN CodeGST Rate
Sight Glass Valve (General)848118%
Sight Glass for Industrial Use701718%
Valve with Metallic Body8481.8018%

Always confirm HSN code with your supplier or GST consultant for accurate invoicing.

 Industrial Applications of Sight Glass Valves

Common Industries Using Sight Glass Valves:

  1. Chemical & Petrochemical Udhhyog

  2. Food & Beverage Processing

  3. Water Treatment Plants

  4. Pharmaceutical Manufacturing

  5. Oil & Gas Refineries

  6. Power Plants

Functions:

  • Visual inspection of fluid clarity and flow

  • Monitoring contamination or bubbles

  • Ensuring fluid levels in tanks

🏢 Top Manufacturers & Suppliers in India

Popular Brands:

  • DRP Valves (Bronze Threaded Sight Glass)

  • Hyper Valves

  • Beekay Valves

  • VIP Valves

  • Tushaco Pumps (Sight Glass Kits)

Conclusion

Sight glass valves play a vital role in industrial fluid monitoring. By choosing the right type and supplier, you can ensure optimal safety and efficiency for your Udyog operations. Always check specs, certifications, and supplier credibility before purchasing.

 FAQ

What is the use of a sight glass valve?

A sight glass valve allows you to visually inspect the flow and condition of liquids or gases inside an industrial pipe system.

What is the HSN code for sight glass valve?

The general HSN code is 8481 for valves and 7017 for glass parts. GST is usually 18%.

How much does a sight glass valve cost in India?

Prices range between ₹450 to ₹6,000 based on type, size, and material.

Where are sight glass valves used?

They are used in Udyog applications such as water treatment, food processing, chemical manufacturing, and oil refineri

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