Flame-Retardancy FR Quick-Connect Fitting KR-W2 Series Female Union for Bulkhead KRE-W2

Brand :

SMC

Caution

*See the catalog for detailed specs and materials.
Product images may be representative images. Refer to the catalog for details.

Product Description

A flame retardant (UL-94 standard V-0 equivalent) one-touch fitting specifically for through-panel connections.
[Features]
·Can be used with FR soft nylon
·Great holding power
·The chuck provides a reliable bite, and the collet increases the holding power
·Due to the special shape, secure sealing and low resistance when inserting the tube
·Can be used from low vacuum to 1 MPa
·Effective for piping in narrow spaces
·The body and thread section can rotate (Positioning degree)
·Prevention of difficult tube detachment problems due to internal intrusion and adhesion of spatter
·Releases the chuck collet when removing. It also prevents the chuck from biting into the tube more than necessary
[Applications]
・ Used for wire-to-wire connection of male threads and tubes for panel mounting, etc.

Bulkhead Connector KRE-W2 Outline Drawing And Dimensions

Bulkhead Connector KRE-W2: related images

Bulkhead Connector KRE-W2 dimensional drawing

Applicable tube outer diameter (mm)	Connection threads Rc	Model	T (M)	H1 (width across flats)	H2 (width across flats）	L₁	L₂	Mounting hole	M	Effective cross-sectional area (mm²)		Weight g
Applicable tube outer diameter (mm)	Connection threads Rc	Model	T (M)	H1 (width across flats)	H2 (width across flats）	L₁	L₂	Mounting hole	M	FR 2 layer	FR soft nylon	Weight g
6	1/8	KRE06-01W2	M14 × 1	17	17	28	11	15	17	10.4	5.6	25
	1/4	KRE06-02W2		17		31.5	15					40
	3/8	KRE06-03W2		19		33.5	17					29
8	1/8	KRE08-01W2	M16 × 1	17	19	27.5	7.5	17	18.5	26.1	18.0	28
	1/4	KRE08-02W2		17		33	13					27
	3/8	KRE08-03W2		19		35	15					48
10	1/4	KRE10-02W2	M20 × 1	22	24	34.5	12.5	21	21	41.5	29.5	53
10	3/8	KRE10-03W2	M20 × 1	22	24	36.5	15	21	21	41.5	29.5	67
12	3/8	KRE12-03W2	M22 × 1	24	27	37	14	23	22	58.3	46.1	92
12	1/2	KRE12-04W2	M22 × 1	24	27	41	18	23	22	58.3	46.1	59

KR-W2 Series Overview

Structural diagram
Guide, collet, chuck, seal, sealant, cover (optional), release button (white), tube, body (white), O-ring, stud.

Usable fluids		Air, water ^{Note 1:}
Operating pressure range ^{Note 2:}		-100 kPa to 1 MPa
Guaranteed pressure resistance		3 MPa
Ambient temperature and working fluid temperature		-5 to 60°C, 0 to 60°C if water (no freezing)
Thread	Mounting section	JIS B0203 (tapered thread for pipes/tubes)
Thread	Nut section	JIS B0205 (metric fine thread)
Screw section seal (standard)		Includes sealing agent

Specifications
Note 1: Make sure the surge pressure stays below the maximum operating pressure.
Note 2: Do not use with a leak tester or for other forms of vacuum retention as they are not guaranteed for zero leakage.

Tube materials	FR 2 layer, FR soft nylon
Tube outer diameter	ø6, ø8, ø10, ø12

Applicable tube.

Body	C3604, flame-retardant PBT (UL-94 standard V-0 equivalent)
Stud	C3604 (threads)
Chuck	SUS304
Guide	SUS304, flame-retardant PBT (UL-94 standard V-0 equivalent)
Collet	POM
Release button	Flame-retardant PBT (UL-94 standard V-0 equivalent)
Seal, O-ring	NBR
Cover (optional)	Flame-retardant PBT / flame-retardant CR (UL-94 standard V-0 equivalent)

Main part materials.