How to Use a Puddle Flange in RCC Slab Construction – Step-by-Step Guide

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  A puddle flange is a simple yet essential fitting used in civil construction to prevent water leakage where pipes pass through concrete structures. In RCC (Reinforced Cement Concrete) slabs, these flanges act as a seal that stops water from migrating along the outer surface of a pipe. Whether you are working on water tanks, basements, lift pits, or underground pipelines, installing a puddle flange correctly ensures waterproofing and structural durability. This step-by-step guide from Udhhyog , a leading supplier of GI, MS, and SS puddle flanges in India, explains how to use a puddle flange during RCC slab construction. 🧰 Step-by-Step Guide ✅ Step 1: Choose the Right Puddle Flange Select a puddle flange based on the pipe size and material (MS, GI, or SS). GI puddle flanges are ideal for general drainage and water pipes. Use stainless steel for corrosive environments or coastal zones. At Udhhyog , we provide puddle flanges in custom sizes with...
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Guide to Using ½ Inch Sight Glass Valves in Udyog & Manufacturing Units

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A 1/2 inch sight glass valve is a small yet crucial component in various Udhhyog and manufacturing processes. It provides real-time visibility into the flow of liquids or gases, ensuring seamless monitoring, safety, and control. This guide explores its working, types, prices, and suppliers in India.

✅ What is a ½ Inch Sight Glass Valve?

A ½ inch sight glass valve is a compact fluid inspection device designed for small pipelines. It's commonly used in:

  • Pharmaceutical plants

  • Food & beverage Udyog

  • Chemical processing units

  • Oil & gas industries

✅ Working Principle

The sight glass valve operates by allowing the process fluid to flow through a transparent chamber (usually made of toughened glass). As the liquid or gas passes through, operators can visually inspect clarity, color, and flow consistency. This real-time observation is crucial for quality control, early detection of contamination, and pressure regulation.

In a ½ inch model, due to the smaller bore size, it is ideal for compact setups or low-volume applications, especially where precision is key. Most designs are threaded, ensuring leak-free connectivity in pressurized Udhhyog systems.

✅ Types of ½ Inch Sight Glass Valves

TypeMaterial UsedApplication
Threaded Sight GlassSS, BronzePharma, beverage, HVAC
Flanged Sight GlassCast Iron, SSChemical plants, Udhhyog units
Jacketed Sight GlassGlass+SS+PTFEThermal fluid systems
Welded Sight GlassSS304, SS316High-pressure manufacturing lines

✅ Applications in Udyog

  • Real-time monitoring of fluid flow

  • Leak detection in small pipelines

  • Inspection of viscous or volatile liquids

  • Control in boiler and condensate systems

✅ Sight Glass Valve Price in India (1/2 Inch)

Product NamePrice Range (INR)MaterialSupplier Location
1/2" Bronze Sight Glass Valve₹350 - ₹600BronzeDelhi, Mumbai, Ahmedabad
SS 304 Threaded Valve₹450 - ₹800Stainless SteelFaridabad, Pune
Sight Glass Valve Kit₹800 - ₹1200SS + GlassChennai, Kolkata

Prices may vary based on pressure rating, brand, and order quantity.

✅ Top Suppliers in India

  • Justdial – Search "Sight Glass Valve Udyog Supplier Near Me"

  • TradeIndia – Verified manufacturers & exporters

  • IndiaMART – Bulk industrial deals with 1/2" valves

  • Local Distributors in Delhi NCR, Gujarat, Maharashtra

✅ FAQs

What is the use of a 1/2 inch sight glass valve?

It is used for monitoring liquid or gas flow in small pipelines within Udyog, pharma, or chemical industries.

How much does a 1/2 inch sight glass valve cost in India?

Prices range between ₹350 - ₹1200 depending on material and brand.

Can a 1/2 inch sight glass valve be used in food processing?

Yes, stainless steel models are food-grade and commonly used in the food & beverage Udyog.

Where to buy 1/2 inch sight glass valves in Delhi?

Available on TradeIndia, Justdial, IndiaMART, and from local valve distributors in Pitampura, Faridabad, and Bawana.

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