Cap pipe fittings are important components used in plumbing systems. They serve the purpose of sealing off the end of a pipe, preventing leakage and maintaining the integrity of the pipeline. In this guide, we will explore what cap pipe fittings are, how they work, and where they are commonly used.

What are Cap Pipe Fittings?

Cap pipe fittings, also known as pipe caps or end caps, are small devices that are used to seal the end of a pipe. They are typically made of materials such as metal, plastic, or rubber, depending on the application and the type of pipe being used.

How do Cap Pipe Fittings Work?

Cap pipe fittings work by covering the open end of a pipe securely, preventing the flow of fluids or gases out of the pipe. They are designed to create a tight seal, which helps to prevent leaks and maintain the pressure within the pipe system. Cap fittings are usually threaded or welded onto the end of the pipe, ensuring a secure connection.

Where are Cap Pipe Fittings Used?

Cap pipe fittings are used in various industries and applications where the ends of pipes need to be sealed. Some common uses include:

Plumbing: In residential and commercial plumbing systems, cap fittings are used to seal off unused pipes or to temporarily close off pipes during maintenance or repairs.

HVAC (Heating, Ventilation, and Air Conditioning): Cap fittings are used in HVAC systems to seal the ends of pipes that are not currently in use or to cap off vents and outlets.

Industrial Applications: In industrial settings, cap fittings are used in pipelines to seal off sections of piping that are not in use or to isolate specific sections of the system.

Agriculture: Cap fittings are used in agricultural irrigation systems to seal the ends of pipes and prevent water leakage.

Dimensions Of End Cap pipe fittings

Size(mm)Size(Inch)Pressure Rating (Kg/cm2)I.D.SDLPlainThreaded
Material  CodeStandard Pkg.Material  CodeStandard Pkg.
* All dimensions in “MM”

Cap Pipe Fitting Grades

Stainless Steel Cap Pipe Fitting
ASTM A182 F304/304L, F306/316L, F309, F31, F317, F321, F347,F454L, ASTM A312/A403 TP304, TP304L, TP316, TP316L

Duplex & Super Duplex Steel Cap Pipe Fitting
ASTM A 182 – F 51, F53, F55 S 31803, S 32205, S 32550, S 32750, S 32760, S 32950.

Carbon Steel Cap Pipe Fitting
ASTM/ ASME A 105, ASTM/ ASME A 350 LF 2, ASTM / ASME A 53 GR. A & B, ASTM / ASME A 691, ASTM A 106 GR. A, B & C. API 5L GR. B, X 42, X 46, X 52, X 60, X 65

Alloy Steel Cap Pipe Fitting
ASTM / ASME A 182, ASTM / ASME A 335 F1, F5, F9, F11, F12, F22, F23, F91, ASTM / ASME A 691 GR 1 CR, 1 1/4 CR, 2 1/4 CR, 5 CR, 9CR, 91

Cap pipe fittings play a crucial role in plumbing and piping systems by providing a reliable means of sealing off the ends of pipes. They are essential for preventing leaks, maintaining pressure, and ensuring the integrity of the pipeline. With their simple yet effective design, cap fittings are widely used across various industries and applications.