Test and Drain Valve with Sight Glass valv Price in India – Complete Guide for Udhhyog

 

Sight Glass

A sight glass is a transparent tube or window that allows visual observation of fluid inside pipelines or tanks. It provides:

  • Real-time monitoring of flow and fluid level
  • Easy detection of contaminants or air bubbles

Test and Drain Valve

Test and drain valves, often combined with sight glasses, serve a more active role:

  • They simulate sprinkler head activation for testing
  • Allow controlled draining of the system
  • Equipped with flow indicators or sight windows

✅ In fire safety systems, using both ensures code compliance and monitoring efficiency.


Why Sight Glass Integration Matters

Benefits of Integrated Sight Glass

  • Visual verification of valve operation
  • Ensures test water actually flows through
  • Reduces the need for extra inspection ports
  • Helpful in Udhhyog safety audits

Common Fluids Monitored

  • Water (fire suppression)
  • Glycol mixes (HVAC)
  • Compressed air and nitrogen
  • Light oils and solvents

Maintenance Tips for Longer Life

Preventive Measures

  1. Flush regularly to prevent residue build-up
  2. Check seals and gaskets monthly
  3. Use brass or stainless steel for corrosive setups
  4. Replace sight glass immediately if scratched or fogged

🛠️ A clean, intact sight glass ensures better system reliability and compliance with BIS/IS standards.


Industry Standards & Certifications

Required Compliance for Fire Use

  • UL (Underwriters Laboratories)
  • FM (Factory Mutual)
  • IS 15105 (Bureau of Indian Standards for Valves)

For Industrial Pipelines

  • ISO 9001: Quality Certification
  • ANSI/ASME Valve Standards
  • Indian Boiler Regulations (IBR) for steam setups

FAQs –

Q1.What is the price of a test and drain valve in Delhi?

Answer: Price ranges between ₹850 to ₹2,500 depending on brand, size, and material.

Q2. Is the sight glass replaceable?

Answer: Yes, most integrated sight glasses are replaceable if scratched or fogged.

Q3. What is the HSN code for test and drain valves?

Answer: HSN code 8481.80 – covers taps, valves, and similar industrial components.

Q4. Can it be used in chemical plants?

Answer: Yes, if selected with corrosion-resistant materials like SS316 or bronze.

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