upvc Reducing Tee 4×3″

Description

upvc Reducing Tee 4×3″ GM

 

GM made in Pakistan ASTM uPvc Sch-40 Pressure Fittings, Drain sewer ventilation. Manufacturer Distributor Supplier in Pakistan contact 0322-3540656

 

What is upvc Reducing Tee 4×3″ ?

 

The “4×3″” designation means it has two main-line connections for a 4-inch pipe and a third, perpendicular connection for a 3-inch pipe. The “Sch 40” indicates that it is a Schedule 40 fitting, a standard wall thickness used for pressure applications.

Details and Specifications

Material: Manufacturers create these fittings from un plasticized polyvinyl chloride (uPVC), a rigid plastic recognized for its high strength, durability, and excellent chemical resistance. They often use uPVC in potable water systems because it is non-toxic and lead-free.

Standards: uPVC Schedule 40 fittings are manufactured to meet industry standards such as ASTM D2466, which ensures they comply with requirements for material, dimensions, and burst pressure. The uPVC compound itself is specified by ASTM D1784.

Pressure and Temperature: The pressure rating of these fittings is directly related to the temperature of the fluid being conveyed. They are generally rated for a maximum operating temperature of around 140°F (60°C). As the temperature rises, the pressure rating decreases, so it’s important to consult a de-rating chart for specific applications.

Dimensions: A 4-inch Schedule 40 pipe has an outside diameter of approximately 4.5 inches (114.30 mm), and a 3-inch pipe has an outside diameter of about 3.5 inches (88.90 mm). The fitting is designed with “slip” or “socket” connections on all three ends to accept the corresponding pipe sizes.

Description and Usage

The reducing tee is a crucial component in any pressure piping system where the main flow needs to be diverted into a smaller, secondary line. The tee shape, with its 90-degree branch, is ideal for creating a right-angle turn in the pipeline. Common applications include:

• Residential and Commercial Plumbing: Used for branching cold water lines.
• Irrigation and Sprinkler Systems: To divide a main supply line into smaller lateral lines.
• Industrial Process Piping: For distributing various non-corrosive fluids.
• Water Treatment and Filtration Systems: As a reliable and corrosion-resistant connection.

Installation

The installation process for a uPVC reducing tee is similar to other uPVC fittings and involves solvent cementing, often referred to as “cold welding.”

1. Preparation: Cut the uPVC pipe ends squarely and remove any burrs from both the inside and outside edges. A slight bevel or chamfer on the outside of the pipe end can aid in insertion.
2. Dry Fit: Test the fit of the pipe into the tee’s sockets. The pipe should fit snugly and go about two-thirds of the way into the socket without solvent cement.
3. Primer Application: Apply a thin, even coat of a primer (if required by local codes or the manufacturer) to the inside of the fitting’s sockets and the outside of the pipe ends. The primer softens the plastic for better adhesion.
4. Cement Application: Immediately after priming, apply a generous, even coat of uPVC solvent cement to both the inside of the fitting and the outside of the pipe.
5. Assembly: Quickly and forcefully push the pipe into the fitting, twisting it a quarter turn to distribute the cement evenly. Hold the joint firmly for at least 30 seconds to prevent the pipe from pushing back out.
6. Curing: Allow the joint to cure fully before applying pressure. The curing time will vary depending on the ambient temperature, humidity, and pipe size.