Waterproofing plays a crucial role in maintaining the integrity of modern infrastructure. When pipes pass through concrete structures, leakage prevention becomes a priority. This is where loose puddle flanges come into play. Designed to create a water-tight barrier between the pipe and surrounding concrete, they are widely used in plumbing and civil engineering projects.
Mesta Inc., a globally recognized brand, specializes in manufacturing and supplying high-performance loose puddle flanges. With a strong footprint across India, Kazakhstan, UAE, Saudi Arabia, and Uzbekistan, Mesta Inc. supports industries with products that meet international standards.
Size | Connect Type | Production technique |
---|---|---|
1/2″ to 48″ | Flat Face / Raised Face / RTJ | Forged / Heat treated / machined |
Coating | Pressure Rating | Equipment |
|
Class 150 to Class 2500 |
|
O D |
NPS | Sch 10 |
Sch 30 |
Sch 20 |
Sth. Wall |
Sch 60 |
Sch 120 |
Extra Strong |
Sch 40 |
Sch 160 |
Sch 80 |
Sch 100 |
Sch 140 |
Double Extra Strong |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0.840 | 1/2” | 0.674 | 0.622 | 0.546 | 0.622 | 0.464 | 0.546 | 0.252 | ||||||
1.050 | 3/4” | 0.884 | 0.824 | 0.742 | 0.824 | 0.612 | 0.742 | 0.434 | ||||||
1.315 | 1” | 1.097 | 1.049 | 0.957 | 1.049 | 0.815 | 0.957 | 0.599 | ||||||
1.660 | 1.1/4” | 1.442 | 1.380 | 1.278 | 1.380 | 1.160 | 1.278 | 0.896 | ||||||
1.900 | 1.1/2” | 1.682 | 1.610 | 1.500 | 1.610 | 1.338 | 1.500 | 1.100 | ||||||
2.375 | 2” | 2.157 | 2.067 | 1.939 | 2.067 | 1.687 | 1.939 | 1.503 | ||||||
2.875 | 2.1/2” | 2.635 | 2.469 | 2.323 | 2.469 | 2.125 | 2.323 | 1.771 | ||||||
3.500 | 3” | 3.260 | 3.068 | 2.900 | 3.068 | 2.624 | 2.900 | 2.300 | ||||||
4.000 | 3-1/2” | 3.760 | 3.548 | 3.364 | 3.548 | 3.364 | 2.728 | |||||||
4.500 | 4” | 4.260 | 4.026 | 3.624 | 3.826 | 4.026 | 3.438 | 3.826 | 3.152 | |||||
5.563 | 5” | 5.295 | 5.047 | 4.563 | 4.813 | 5.047 | 4.313 | 4.813 | 4.063 | |||||
6.625 | 6” | 6.357 | 6.065 | 5.501 | 5.761 | 6.065 | 5.187 | 5.761 | 4.897 | |||||
8.625 | 8” | 8.329 | 8.071 | 8.125 | 7.981 | 7.813 | 7.187 | 7.625 | 7.981 | 6.813 | 7.625 | 7.437 | 7.001 | 6.875 |
10.750 | 10” | 10.420 | 10.136 | 10.250 | 10.020 | 9.750 | 9.062 | 9.750 | 10.020 | 8.500 | 9.562 | 9.312 | 8.750 | 8.750 |
12.750 | 12” | 12.390 | 12.090 | 12.250 | 12.000 | 11.626 | 10.750 | 11.750 | 11.938 | 10.126 | 11.374 | 11.062 | 10.500 | 10.750 |
42.000 | 42” | 41.250 | 41.000 |
Temperature (°C) |
Class | ||||||
---|---|---|---|---|---|---|---|
Class 600 | Class 300 | Class 150 | Class 900 | Class 400 | Class 2500 | Class 1500 | |
-29 - 38 | 103.4 | 51.7 | 19.8 | 155 | 68.9 | 431 | 259 |
50 | 103.4 | 51.7 | 19.5 | 155 | 68.9 | 431 | 259 |
100 | 103.0 | 51.5 | 17.7 | 155 | 68.7 | 429 | 258 |
150 | 100.3 | 50.2 | 15.8 | 151 | 66.8 | 418 | 251 |
200 | 97.2 | 48.6 | 13.8 | 146 | 64.8 | 405 | 243 |
250 | 92.7 | 46.3 | 12.1 | 139 | 61.7 | 386 | 232 |
300 | 85.7 | 42.9 | 10.2 | 129 | 57.0 | 357 | 214 |
325 | 82.6 | 41.4 | 9.3 | 124 | 55.0 | 344 | 207 |
350 | 80.0 | 40.0 | 8.4 | 120 | 53.4 | 334 | 200 |
375 | 75.7 | 37.8 | 7.4 | 114 | 50.4 | 315 | 189 |
400 | 69.4 | 34.7 | 6.5 | 104 | 46.3 | 290 | 174 |
425 | 57.5 | 28.8 | 5.5 | 86.3 | 38.4 | 240 | 144 |
450 | 46.0 | 23.0 | 4.6 | 69.0 | 30.7 | 192 | 115 |
475 | 34.2 | 17.1 | 3.7 | 51.3 | 22.8 | 142 | 85.4 |
500 | 23.2 | 11.6 | 2.8 | 34.7 | 15.4 | 96.5 | 57.9 |
538 | 11.8 | 5.9 | 1.4 | 17.7 | 7.9 | 49.2 | 29.5 |
A loose puddle flange is a circular device made to fit loosely over a pipe. Unlike fixed flanges, it allows flexibility in positioning before being cast in concrete. The flange creates a seal that prevents water ingress through gaps between the pipe and the concrete slab or wall.
Typically made from durable materials like stainless steel, HDPE, or ductile iron, loose puddle flanges are known for their corrosion resistance and adaptability. Their unique design makes them ideal for installation in both underground and above-ground plumbing systems.
Contractors and engineers often prefer loose puddle flanges because of their simple yet effective performance. There are several benefits to incorporating them in construction projects:
Flexible Installation – The flange can be adjusted before concrete setting, allowing greater accuracy.
Durability – Resistant to chemicals and groundwater, making them perfect for harsh environments like Saudi Arabia and Uzbekistan.
Leak Prevention – Effective sealing reduces water damage risk in both dry and humid climates.
Cost-Effective Maintenance – Once installed, they rarely require repair or replacement.
Additionally, Mesta Inc. provides customized flange options tailored for extreme weather conditions in Kazakhstan and UAE.
From commercial high-rises to residential basements, loose puddle flanges are widely adopted. These are commonly used in:
Drainage and sewer systems
Water treatment plants
Tunnels and metro projects
Firefighting pipeline systems
Utility corridors passing through concrete walls
In regions like India and the UAE, where monsoons and groundwater levels pose challenges, the use of Mesta Inc.’s loose puddle flanges has proven to enhance long-term structural reliability.
Choosing the appropriate flange depends on multiple factors. Mesta Inc. provides detailed specifications and expert assistance to help clients pick the best fit. Consider the following:
Pipe Material Compatibility – Match the flange to the pipe (PVC, HDPE, GI, etc.)
Pipe Diameter and Pressure – Select a size based on fluid type and flow pressure
Environmental Conditions – Saltwater, chemical exposure, or extreme heat can influence material choice
Installation Method – Some projects may require adjustable or reinforced variants
This customized selection approach is particularly useful for infrastructure developments in Uzbekistan and India.
Though installation is relatively straightforward, following best practices ensures long-term performance. Mesta Inc. emphasizes the importance of precision and planning:
Clean the Pipe Surface – Ensure it’s dust-free for optimal flange placement.
Slide and Position the Flange – As the flange is loose, it can be easily moved to the desired spot.
Secure with Sealant if Needed – For high-pressure areas, additional bonding may be applied.
Concrete Casting – Carefully pour concrete around the flange. Ensure even distribution.
Inspection – Check for alignment, seal integrity, and material exposure.
With guidance from Mesta Inc.’s experts, contractors in Saudi Arabia, Kazakhstan, and UAE report increased efficiency and fewer installation errors.
One of the reasons engineers trust Mesta Inc. is the long-lasting nature of its products. Loose puddle flanges require minimal maintenance if installed correctly. Nonetheless, a few routine checks are encouraged:
Inspect for surface corrosion annually
Monitor areas with heavy groundwater pressure
Replace sealant if degradation occurs
Mesta Inc. offers post-installation support and product replacement warranties across India, UAE, and Kazakhstan, ensuring peace of mind for clients.
With years of innovation and manufacturing excellence, Mesta Inc. has become a leader in pipe penetration waterproofing. Their loose puddle flanges are used by top-tier contractors and engineering firms across Saudi Arabia, Uzbekistan, and India.
Key advantages of choosing Mesta Inc. include:
ISO-certified products
Custom fabrication options
Competitive pricing with no compromise on quality
Responsive customer support across global markets
The company’s advanced production facilities and research-backed designs help projects meet local and international safety regulations.
Water seepage through wall or slab penetrations has long plagued builders. Loose puddle flange technology solves several real-world issues:
In flood-prone areas, it prevents sudden water intrusion.
In arid regions, it handles soil movement and thermal expansion.
In industrial settings, it withstands chemical spills and pressurized liquids.
Mesta Inc.’s focus on innovation ensures that clients in UAE and Kazakhstan stay ahead of the curve, addressing these challenges efficiently.
A small yet significant component, the loose puddle flange plays a major role in safeguarding building longevity. Especially in countries like India and Uzbekistan, where varied environmental factors challenge infrastructure, these flanges act as silent protectors.
Thanks to the dedication of Mesta Inc., reliable waterproofing solutions are accessible across continents. By combining product excellence with expert guidance, the company empowers engineers to deliver leak-proof, future-ready structures. Whether it’s a high-rise in UAE, an industrial plant in Kazakhstan, or a metro tunnel in Saudi Arabia, Mesta Inc.’s loose puddle flanges remain a cornerstone of waterproof design.
+91 22 2386 0222 / +91 22 2386 0223 +91 22 67492118 / +91 22 6636 2118 +919820007728 +919867899897 +919819546861
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