Yoshitake BJ-1 is a mechanical type displacement absorption joint capable of absorbing every type of displacement simultaneously, including expansion, compression, rotation, and twist. It is highly suitable for installations where piping space is limited, and it complies with SHASE-S007 Mechanical Type Displacement Absorption Joints standards.

The joint utilizes original PTFE packing, providing outstanding heat, oil, corrosion, and wear resistance. Its robust design is strong enough to withstand water hammer and impacts. Additionally, it allows anchors and guides to be smaller and reduces the total number required in the system.

Features

• Capable of absorbing every type of displacement all together, such as expansion, compression, rotation and twist.
• Suitable to the place where piping space is limited.
• Outstanding heat, oil, corrosion and wear resistance by original packing.
• Able to make the anchor and guide smaller, also lessen them.
• Strong enough to withstand water hammer, impact, etc.
• Complies with SHASE-S007 Mechanical Type Displacement Absorption Joints.

Specifications

Application	Steam, Air, Cold and hot water, Oil, Other non-dangerous fluids
Maximum Pressure	1.0 MPa
Maximum Temperature	220 °C
Maximum Displacement Angle	20°
Connection	JIS 10K RF flanged

Materials

Part	Material
Body	Cast carbon steel (WCB)
Ball	Carbon steel (HCr plating / S35C equivalent)
Packing	PTFE
Spacer	PTFE
Cover	Rolled Steel (SS400 equivalent)
Flange	Rolled Steel (SS400 equivalent)
Bolts/Nuts/Washers	Steel

Dimensions and Weights

Size	d	L	$L_1$	$\theta (^\circ)$	Do	Flange D	Flange t	Flange f	Flange g	Flange C	Flange n-h	Weight (kg)
50A	50	190	110	20	160	155	16	2	96	120	4-19	11
65A	65	220	130	20	175	175	18	2	116	140	4-19	14.5
80A	80	235	130	20	195	185	18	2	126	150	8-19	17
100A	100	270	150	20	232	210	18	2	151	175	8-19	26
125A	125	310	170	20	270	250	20	2	182	210	8-23	38
150A	150	370	190	20	310	280	22	2	212	240	8-23	56
200A	200	430	220	20	380	330	22	2	262	290	12-23	84
250A	250	480	240	20	460	400	24	2	324	355	12-25	135

INFO

Flange dimensions shown are for JIS 10K RF.