Tee Type Strainer
What is a T-type Strainer?
T-type strainer is also known as Bathtub strainer, they are used as fixed strainers in
large bore lines of 2′′ and above. They may be flanged or welded to the pipe network
on which they are mounted.
Tee strainers are a custom-made compound strainer intended to extract foreign
contaminants from the pipeline. Tee Style Strainers are a low-cost option for high
nominal bore straining specifications. They can be installed in vertical or horizontal
pipes and can be designed for right-angled installations.
Tee type strainers are most typically equipped with a variety of graded filtration
standards (fine to coarse or vise – versa) to ensure that the device performs at the
appropriate level of cleanliness when fully loaded. Tee strainers include either a
screwed cover or a quick-opening cover for easy accessibility.
Construction of T-type Strainer
T type strainer is specially made with pipes & plates or standard identical tee &
flanges. Filter components are made of stainless-steel perforated sheet metal or wire
mesh which is supported by perforated sheet metal. T-type strainers are a low-cost
alternative for large nominal bore filtering demands. This strainer can be mounted
quickly and requires less maintenance. T strainers come with either a screwed cover
or a quick-opening covers for application adequacy.
T-type Strainers may be mounted either in vertical or horizontal pipes, in the vertical
position the discharge would flow down into the basket. In the horizontal location,
the branch link is located on the side for side access or, respectively, and on the top
for top access. T Strainers are restricted to course filtration due to the way the basket
is placed within the T will encourage fluid to flow through the runner bar system.
T-type Strainer Can Be Divided Into Different Types According To :
- End Connection: These strainers come with two different end connections which can be installed in pipelines by either butt welding or can be bolted with pipe flange when it is supplied with flanged ends.
- Flow Direction: These strainers are available in a different configuration where the direction of flow decides the design of the straining element utilized for straining purposes.
- Straight flow: Here sealing takes place at the guide rails which allows little bypass thus it is suitable for coarse filtration. This is the most efficient design among all t-types of strainers.
- Right Angled flow (In to out): It has a stronger construction as it is employed for higher internal pressure due to its flow direction. It shows a moderate pressure drop. Sealing is achieved at a flat surface by sealing ring so it is suitable for fine filtration.
- Right Angled Flow (Out to in): It requires internal reinforcement as pressure exerts externally due to its flow direction. This is the reason for its higher pressure drop compared to all T type strainers. Sealing is achieved by sealing ring which makes it suitable only for fine filtration.
How Does A T-type Strainer Work?
Working of T-type strainer is same as the other type of strainers, the shape of its
filter screen is like a bathtub, this strainer is used to filter out debris and other foreign
particles from the liquid in a pipeline. This screen is easily accessible and can be
cleaned when the differential pressure drops across the inlet and outlet of the
strainer.
Features And Benefit of T-type Strainer
T-type strainers have many benefits to pipeline applications such as :
- It comes with a quick opening type covers for easy cleaning operation.
- It is provided with an easy venting port and has differential pressure taps.
- It has a straighter flow path which allows higher flow capacity.
- T type Strainer is suited for transferring fluids at a higher velocity.
- These are ideal for large pipe uses that need quick access to the strainer.
- While installed horizontally the chamber cover can be opened without draining the process fluid. Thus, it can be used in hazardous processes.
Applications of T-type Strainer
Sometimes it is not practical to use Y-Type Strainers in few applications since the
element is accessible from the underside of the covering or body. T-Type Strainers
provide accessibility to the element through the top of the housing or body. This type
of strainer is intended to be mounted in-line with the pipeline axis, but can also be
installed in offset and right-angled pipe installations.
In addition to the standard catalog collection of T-Type Strainers, Fabricated
Strainers can be designed and produced to satisfy particular application
specifications. These strainers are designed to handle aggressive industrial steam
and gas applications when they are constructed with stainless steel or carbon steel.