The Yoshitake ST-10 straight strainer is designed with a compact ductile cast iron body, setting the screen up coaxially with the direction of the fluid. Suitable for cold and hot water, kerosene, heavy oils A and B, and other non-dangerous fluids, it is capable of operating at a maximum working pressure of 1.0 MPa and temperatures up to 80°C. The strainer is subjected to an electrodeposition coating for excellent durability and corrosion resistance, and allows for quick screen replacement without requiring any tools.

Features

• It can replace the screen without using tools.
• Significantly compact body set up a screen in the flow coaxial with the direction of the fluid.
• Excellent durability since it is subjected to electrodeposition coating.

Specifications

Model	ST-10
Nominal size	125-250A *1
Application	Cold and hot water, Oil (Kerosene, Heavy oils A and B), Other non-dangerous fluids
Maximum working pressure	1.0 MPa
Maximum temperature	80°C
Connection	JIS 10K FF flanged
Installation posture	Horizontal or vertical installation *2
Material	Body: Ductile cast iron Screen: Stainless steel
Screen	Perforation: φ8-10P Mesh: Standard 60 mesh *3
Rust proof	Electrodeposition coating

Notes

*1 Available with davit for 250A. *2 If fluid flows from bottom to top, it is necessary to install devices such as blow valve. *3 Available with 20, 40, 80 and 100 mesh.

Dimensions and Weights

Nominal size	L	H1	H2	E	Screen ds	Screen Ls	Plug	Plug	Weight (kg)
125A	335	132	180	194	133	154.5	R1/2	R3/8	42
150A	385	147	205	214	158	182	R1/2	R3/8	60
200A	470	175	240	249	208	228	R1/2	R3/8	100
250A	550	215	285	285	258	278	R1/2	R3/8	156

Performance

Piping Example

Piping Example

1. Clogging condition inside the product can be known from the differential pressure measured when pressure gauges are installed before and after the product.
2. If fluid flows from bottom to top, install a blow valve in order to remove scale accumulated at the bottom of riser pipe.

Maintenance & Screen Detachment

Warning

Completely discharge the pressure inside of the product, piping and equipment prior to detaching the screen.

How to Detach, Clean, and Install the Screen:

1. Put the screen into the body.
2. Insert the tabs of the screen between the grooves on the body. At this time, apply grease to the O-ring or its contact surface.
3. Rotate the screen by 45°. (Align corners of the triangles.)
4. Install the cover to the body. Push in the cover strongly until the stopper ring tab comes in contact with the body.
5. Rotate the stopper ring until each handle reaches the stopper.
6. Lower each of the handles between the stopper and install the thumbscrew.

Caution for Assembly

Before using the product, make sure to lower each of the handles between the stopper and install the thumbscrew. It is very dangerous to use the product in the following conditions. Failure to follow this notice may cause the cover to come off.