Yoshitake YBF-1E flexible joint is designed for general piping applications to absorb misalignment. Featuring stainless steel wetted parts, including SUS 304 braid and bellows, it provides excellent corrosion resistance and durability. The joint is suitable for steam, air, cold and hot water, oil, and other non-dangerous fluids up to 1.0 MPa and 220°C, and utilizes a JIS Rc screwed union connection.

Features

• Flexible joint for general piping (to absorb misalignment).
• Stainless steel wetted parts provide excellent corrosion resistance.

Specifications

Model	YBF-1E	YBF-2E
Application	Steam, Air, Cold and hot water, Oil, Other non-dangerous fluids	Steam, Air, Cold and hot water, Oil, Other non-dangerous fluids
Maximum pressure	1.0 MPa	15A-200A: 1.0 MPa 250A: 0.5 MPa
Maximum temperature	220°C	220°C
Material (Connection)	SS400	SS400
Material (Braid)	Stainless steel (SUS 304)	Stainless steel (SUS 304)
Material (Bellows)	Stainless steel (SUS 304)	Stainless steel (SUS 304)
Connection	JIS Rc screwed (union joint)	JIS 10K FF flanged (loose flanges on both sides)

Options

• Available with tube made of stainless steel (SUS316L).
• Available with all stainless steel made (YBF-6E, YBF-7E).
• For vibration absorption around pump, the YBF-2EM (flanged type only) is appropriate. Contact us for details.

Dimensions (mm)

YBF-1E

Nominal size	L	Shortest distance between surface
15A	-	120
20A	300	150
25A	500	150
32A	800	170
40A	1000	180
50A	1000	200

YBF-2E

Nominal size	L	Shortest distance between surface
15A	-	-
20A	300	-
25A	400	-
32A	500	-
40A	600	150
50A	700	-
65A	800	-
80A	1000	-
100A	-	-
125A	300, 400, 500	-
150A	600, 700, 800	200
200A	1000, 1200	-
250A	1500, 2000	250

Parts List and Detailed Dimensions

Materials

No.	Name of Parts	Material	Q.TY
1	Union Pipe	Malleable Iron (FCMB)	2
2	Union Nut	Malleable Iron (FCMB)	2
3	Union	Malleable Iron (FCMB)	2
4	Gasket	Non-Asbestos (T#1120)	2
5	Bushing	Stainless Steel (SUS304)	2
6	Bellows	Stainless Steel (SUS304)	1
7	Braid	Stainless Steel (SUS304)	1

Dimensions Detail (mm)

Size	d	D1	D2	A	H1	H2
15A	Rc 1/2	13.2	18.5	41	27	42
20A	Rc 3/4	19.2	25.5	49	33	49
25A	Rc 1	25.0	32.6	54	41	59
32A	Rc 1 1/4	32.3	41.0	60	50	69
40A	Rc 1 1/2	38.5	47.5	67	56	78
50A	Rc 2	51.5	61.5	74	69	93