upvc Reducing Socket 3×2″

Description

upvc Reducing Socket 3×2″ GM 

 

GM made in Pakistan ASTM uPvc Sch-40 Pressure Fittings, Drain sewer ventilation. online supplier in Islamabad Pakistan contact 0322-3540656

 

What is upvc Reducing Socket 3×2″ ?

 

Description

A uPVC (Un plasticized Polyvinyl Chloride) Reducing Socket 3×2″ is a pressure-rated pipe fitting designed to connect a 3-inch diameter uPVC pipe to a 2-inch diameter uPVC pipe using a socket joint. It features a larger socket end (3″) on one side and a smaller socket end (2″) on the other, allowing for a seamless reduction in pipe size without the need for additional adapters. The “GM” designation likely refers to a specific manufacturer or regional standard (e.g., “General Machinery” or a brand-specific code in industrial catalogs), but it aligns with standard pressure fittings. This fitting is part of the Schedule 40 (SCH 40) series, which indicates a standard wall thickness suitable for moderate pressure applications. It is molded from rigid uPVC material, providing a lightweight, corrosion-resistant alternative to metal fittings.

Specifications

uPVC Reducing Sockets in SCH 40 comply with international standards such as ASTM D2466 for injection-molded fittings and ASTM D1785 for pipe dimensions, ensuring compatibility with pressure piping systems. Key specifications for the 3×2″ size include:

These dimensions ensure interchangeability with standard uPVC SCH 40 pipes from manufacturers like Spears, Charlotte Pipe, or Ashirvad. Pressure ratings are for water at ambient temperatures; consult manufacturer charts for derating factors.

Usage

This fitting is ideal for pressure piping systems where flow rate needs to be reduced or matched to downstream components. Common applications include:

• Water Supply and Distribution: Connecting main lines (3″) to branch lines (2″) in municipal, residential, or commercial plumbing.
• Irrigation and Agricultural Systems: Reducing pipe size in drip or sprinkler networks for efficient water delivery.
• Industrial and Chemical Processing: Handling non-flammable liquids like acids, bases, salts, alcohols, and halogens due to uPVC’s chemical resistance.
• Drainage and Venting (Low-Pressure): In non-pressurized setups, though primarily for pressure use.
• Fire Sprinkler Systems: Where compliant with local codes for durable, non-corrosive connections.

It resists corrosion, scaling, and pitting, offering a smooth interior for low-friction flow and energy-efficient pumping. Not suitable for compressed air, gases, or temperatures exceeding 140°F.

Installation

Installation is straightforward using solvent cement joints, requiring no special tools beyond a pipe cutter and applicator. Follow these steps for a secure, leak-free connection:

1. Preparation:
   • Cut pipes square using a PVC saw or cutter. Deburr and bevel edges with a file or chamfer tool to prevent debris.
   • Dry-fit components to ensure proper alignment and insertion depth (typically 3–4″ into socket).
2. Cleaning and Priming:
   • Clean pipe ends and socket interiors with a dry cloth to remove dirt or moisture.
   • Apply PVC primer (e.g., purple primer) to the pipe OD (at least 2/3 of insertion depth) and socket ID using a dauber. Let primer dry for 10–15 seconds until tacky.
3. Cement Application:
   • Apply a thick, even layer of PVC solvent cement (medium-body for SCH 40) to the primed pipe end.
   • Quickly apply a thinner layer to the socket interior.
   • Insert the pipe into the socket with a 1/4-turn twist for even distribution, pushing firmly until it bottoms out.
4. Curing:
   • Hold the joint under steady pressure for 15–30 seconds to prevent “push-out” as the cement sets.
   • Allow full cure time based on ambient temperature (e.g., 2 hours at 60–100°F; up to 24 hours below 40°F). Refer to cement manufacturer’s schedule.
   • Avoid pressurizing the system until fully cured.
5. Testing:
   • Pressure-test the assembly at 1.5x operating pressure for 2 hours, monitoring for leaks.
   • Use only with compatible uPVC pipes; avoid mixing with CPVC or ABS.