Strainer

Strainers

Introduction

Strainers are installed on gas or liquid pipes to protect equipment (such as Compressor, Pumps, and etc.) from foreign matters such as rust, scale, weld slag and sand.
It is consist of a body, an Element (perforated plate and wire mesh) which filters out foreign
matters, and a cover or cap for pulling and pushing the screen.
MSNT manufactures a high credible strainer that can’t compare with other products as it has a long experience and accumulated know-how in field of engineering.

Structure

The structure is simple. It has a body, Element (perforated plate and wire mesh) which filters out foreign matter, and a cover or cap for pulling and pushing the screen.

The Element generally uses Perforated Type and Mesh Element, which is a fixed wire mesh and a perforated plate,The hole size of Wire mesh is depend on foreign matter’s size and protector,

it is usually 10, 20, 30, 40, 60, 100, 200 mesh.

The hole size of perforated plate is usually used 3mm, 4mm, 6mm, 8mm, 10mm.
Sizes 20~60 are generally used for liquids, air or gas applications generally utilize more than

80 or higher.
Be careful if you use more than 200 size of mesh because of a large pressure loss.
An accumulation of foreign matter in the element can cause a loss of pressure

and low level of flow.

Make sure there is enough effective area and filter area in the strainer.

It depends on the fluid type and caliber but the filter area, which is area of Element when it is spread, has to 5 – 7 times bigger than plumbing cross-section area.

The effective area, the way that fluid goes though, should be at least more than 2 – 3 times bigger than plumbing cross-section area.
A blow-down valve can be set up in the cap of the strainer in order to easily clean foreign matter off of the Element.
Take caution when setting the strainer up in front of a cooling-tower pump.

Much foreign matter can collect causing fluids to run low and cavitations may form.

Internal Element of Strainer

Element is very important part as the heart of strainer. So, Corrosion Resistance, Filtration rate and Strength must be considered sufficiently and it must be a structure not to be bypassed the non-filtered fluid between element and body.
MSNT is manufacturing a high credible strainer that can’t compare with other products
as it has a long experience and accumulated know-how in field of engineering.

Material

– Carbon Steel : ASTM : A105, A216WCB , A53, A234, A106 A516

KS : SCPH2, SPPS, SPHT, SB42, S25C

– Stainless Steel : A182, A351, A312, A403, A240

– Alloy Steel and Special Steel : Monel, Hastelloy, Aluminium ,

Bronze, Copper Alloy,

Chrome Steel, etc.

Application Code

– ASME, KS & JIS, JPI, API, ISO, MSS, ETC

End Connection Style

– Flanged Type

– Socket Weld Type