Yoshitake SY-40H Y-type strainer features a ductile cast iron body and stainless steel screen, designed for steam, air, hot or cold water, and other non-dangerous fluids. It provides a maximum operating pressure of 2.0 MPa and withstands maximum temperatures up to 220°C. The strainer is built with the largest possible filtration area as a countermeasure against flow rate decreases caused by clogging.

Specifications

Model	SY-40H
Application	Steam, air, hot or cold water, and other non-dangerous fluids
Maximum pressure	2.0 MPa
Maximum temperature	220°C
Material (Body)	Ductile cast iron
Material (Screen)	Stainless steel
Standard Screen Perforations	φ2.5-4P
Standard Screen Mesh	80 mesh
Connection	JIS 20K FF flanged, ASME Class 300 flanged

INFO

• Available with 20 to 100 mesh screen (perforation: φ2.5-4P) or only with perforation (15A to 80A: φ1.3-2.7P, 100A or more: φ1.5-3.2P).
• Available with a brass plug (the standard is S15C or FCMB310).

Dimensions and Weights

Figure 1: 15-50A (No plug is provided with 15 to 32A ones)

Figure 2: 65-300A

Nominal size	L (mm)	H1 (mm)	ds (mm)	Ls (mm)	Connection	Weight (kg)
15A	130	61	22	40	---	1.9
20A	140	75	27	56	---	2.5
25A	160	88	34	66	---	4.0
32A	175	104	43	76	---	5.2
40A	190	115	50	85	R 1/2	6.7
50A	233	140	61	107	R 1/2	10.2
65A	290	167	73	125	R 1/2	15
80A	316	190	88	130	R 1/2	19
100A	360	225	108	180	R 3/4	28

Operating Mechanism

Figure 3: 15-50A

No.	Part name
1	Body
2	Screen
3	Gasket
4	Cap
5	Cover
6	Plug
7	Strainer retainer
8	Hexagon nut
9	Stud bolt
10	Washer

Dust, scale and other foreign matter from the fluid flowing into the strainer through the inlet port are removed by the screen.

Installation Procedure

WARNING

The product is heavy and shall be securely suspended with a hoist or the like when installed. Failure to suspend the product may cause it to fall down, possibly resulting in injury.

Installation Cautions

• Install the pipe so that the fluid flowing direction follows the arrow on the body.
• Firmly support pipes and secure the product. If an excessive stress is applied to the pipes, the product may be deformed.
• Reserve a space required for maintenance and inspection (cleaning of the screen) as specified below.

Figure 7: Space for removing the screen

Nominal size	H (mm)
15A	80
20A	105
25A	125
32A	145
40A	160
50A	200
65A	220
80A	245
100A	310

Maintenance Procedure

WARNING

When overhauling or inspecting the product, check that the product and piping internal pressures have been released to the atmosphere. When the fluid is hot, cool it down until it can be touched by bare hand.

Disassembly

1. After checking that no pressure remains in the strainer, remove the cap and gasket for 50A or smaller ones or the hexagon nut, cover and gasket in this order for 65A or larger ones.
2. Remove the screen from the body and clean it. For 100A or larger ones, the screen is equipped with a strainer retainer.

Assembly

1. Clean the gasket mating faces of the body and cap or cover and install the cleaned screen to the body.
2. Install a new gasket and install the cap or cover.

Figure 9: 15 to 50A

Figure 10: 65 to 300A