Flexible joint KW type

Flexible joint

Standard specifications
Features
Specifications/standards

General purpose

Cylindrical flexible joints for large displacement absorption general air conditioning and circulation pumps: *This product is a made-to-order product.

Standard specifications

Flexible type	1 mountain flexible
Usage	General purpose
Flange	SS400 (Electrogalvanized) Compatible dimensions: JIS10K

System used
Water supply/Clean water	×	Sea water	◎
Hot water supply	×	Oil	×
Source	×	Chemical solution	×
Chilled water/Cooling water	◎	Drainage	◎
Hot/Cold/Hot water	◎	Around the pool circulation	×

Other standards
Ministry of Land, Infrastructure, Transport and Tourism specifications	〇：Available

Features

・Large displacement (especially eccentricity) and flexibility.
・Compliant with the Ministry of Land, Infrastructure, Transport and Tourism "Public Construction Standard Specifications (Mechanical Construction Edition)" can be selected.
・A negative pressure of -0.1 MPa (-1 kgf/cm2) can be used.

Specifications/Standards

Product configuration

	Name	Material
①	Inner rubber	Synthetic rubber
②	External rubber	Synthetic rubber
③	Reinforcement cord	Synthetic fiber
④	Flange	SS400 (Electrogalvanized, Compatible dimensions: JIS10K)
⑤	Wire	Hard steel wire rod
⑥	Presser cloth	Synthetic fiber
⑦	Solid ring	SS400
⑧	Caution seal	-

Specification table

Product number	Nominal diameter (A)	Flange size (mm)	Rubber hose part dimensions (mm)			Mass (kg)
Product number	Nominal diameter (A)	D.	d	L. (Standard specification)	L. (Ministry of Land, Infrastructure, Transport and Tourism specifications)	(Standard specification)	(Ministry of Land, Infrastructure, Transport and Tourism specifications)
KW-20	20	100	19	300	300	1.9
KW-25	25	125	32	300	300	2.6
KW-32	32	135	32	300	300	3.2
KW-40	40	140	39	300	300	3.6
KW-50(K)	50	155	50	300	500	4.5	5
KW-65(K)	65	175	64	300	500	5.6	6.4
KW-80(K)	80	185	77	300	500	5.9	7.1
KW-100(K)	100	210	100	400	700	7.9	10.8
KW-125(K)	125	250	125	400	700	12.1	14.6
KW-150(K)	150	280	151	500	700	14.4	17.6
KW-200(K)	200	330	200	500	700	21.3	23.7
KW-250(K)	250	400	250	500	700	28.9	34
KW-300(K)	300	445	299	600	700	39.6	43.4

*Ministry of Land, Infrastructure, Transport and Tourism "Public Building Construction Standard Specifications (Mechanical Equipment Construction)" compliant products differ from the standard only in the face-to-face dimension L.
It is indicated by adding "K" to the end of the product number. Example KW-50K

Standard specification table

Product number	Standard dimensions (mm)		Flange spacing i (mm)	Dimensional tolerance during operation (mm)				Recommended bolt diameterNote 1 × Length ℓ
Product number	Dimension between mounting surfaces L	Eccentricity e	Flange spacing i (mm)	Shrinkage	Stretch	Eccentricity	Angle of declination (°)	Recommended bolt diameterNote 1 × Length ℓ
KW-20	300±3	23	6.5 to 7.5	4	7	70	15	M12×55L
KW-25	300±3	23	1.0 to 2.0	4	7	70	15	M16×55L
KW-32	300±3	20	1.0 to 2.0	4	7	60	15	M16×55L
KW-40	300±3	16	1.0 to 2.0	4	7	50	15	M16×55L
KW-50	300±3	16	6.5 to 7.5	4	7	50	15	M16×65L
KW-65	300±3	13	8.0 to 9.0	3	5	40	15	M16×70L
KW-80	300±3	10	8.0 to 9.0	3	5	30	10	M16×70L
KW-100	400±4	10	9.0 to 10.0	3	6	30	10	M16×70L
KW-125	400±4	10	12.0 to 13.0	3	6	30	10	M20×80L
KW-150	500±5	10	12.0 to 13.0	4	8	30	10	M20×85L
KW-200	500±5	6	12.0 to 13.0	4	8	20	5	M20×85L
KW-250	500±5	6	14.0 to 15.0	4	8	20	5	M22 × 95L
KW-300	600±6	6	14.0 to 15.0	5	10	20	5	M22 x 100L

*Note 1: Recommended bolts are not included. Please prepare by yourself.

Ministry of Land, Infrastructure, Transport and Tourism specification table

Product number	Standard dimensions (mm)		Flange spacing i (mm)	Dimensional tolerance during operation (mm)				Recommended bolt diameterNote 1 × Length ℓ
Product number	Dimension between mounting surfaces L	Eccentricity e	Flange spacing i (mm)	Shrinkage	Stretch	Eccentricity	Angle of declination (°)	Recommended bolt diameterNote 1 × Length ℓ
KW-50K	500±5	20	6.5 to 7.5	4	8	60	25	M16×65L
KW-65K	500±5	16	8.0 to 9.0	4	8	50	25	M16×70L
KW-80K	500±5	16	8.0 to 9.0	4	8	50	20	M16×70L
KW-100K	700±7	16	9.0 to 10.0	5	10	50	15	M16×70L
KW-125K	700±7	16	12.0 to 13.0	5	10	50	15	M20×80L
KW-150K	700±7	13	12.0 to 13.0	6	11	40	12	M20×85L
KW-200K	700±7	10	12.0 to 13.0	6	11	30	7	M20×85L
KW-250K	700±7	10	14.0 to 15.0	6	11	30	7	M22 × 95L
KW-300K	700±7	6	14.0 to 15.0	6	11	20	6	M22 x 100L

*Note 1: Recommended bolts are not included. Please prepare by yourself.

Product information