Bite Hydraulic Pipe Fittings/Reducer

Brand :

MISUMI

Caution

Product Description

[Features]·A compression fitting suitable for hydraulic piping. ·In the case of piping work where space is limited or welding is not possible, etc., this fitting allows piping connections simply by tightening the nuts. ·Simply insert a pipe or tube into the nut and tighten it to complete the piping work. ·After temporary tightening, attach it to the main body and when the cap nut is tightened, tighten it 3/4 to 1 turn further from the point where the response suddenly increases to complete the tightening operation.

Type	[ M ]Material	[ S ]Surface Treatment
KTGRE	Body‚ Nut: S25C	Trivalent Chromate
KTGRE	Sleeve: STKM	-

Specifications/Overview

Structure and Tightening Procedure of Swaged Sleeve Fittings

Swaged Sleeve Fittings are composed of a main body, a sleeve and a nut.
[Tightening Procedure]
For utilizing performance of Swaged Sleeve Fittings for Steel Pipes, use of appropriate pipe and accurate tightening of fitting are required. The following pre-tightening will make plumbing smooth and secure.

(1) Pre-tightening

(1) Insert the pipe with nut and sleeve inserted as shown in right figure into the fitting body. Make sure that pipe end contacts abutment part. Inadequate swaging due to the inadequate tightening may cause the pipe to pull out.

(2) Tighten the nut by hand.

(3) Tighten the nut with a wrench while rotating the pipe to the end of its rotation. Put a mark on this position of fitting body and the nut.

(4) Further tighten the nut by a wrench with1-1/4 turn at this mark.

(5) Loosen the nut once to see the state of the sleeve in order to confirm the following.

1) There is some millimeter distance between pipe end and sleeve end.

2) No substantial movement of the sleeve toward the direction of pipe axis is allowable. Moving toward circumferential direction is acceptable.

(2) Attach the pre-tightened pipe with
fitting body and tighten the nut by a wrench until you feel sudden resistance. Further tighten the nut by 1/4 turn, and tightening will be done.

Swaged Sleeve Fittings for Hydraulics, Tee, Related Image 1_Structure/Tightening Procedure

[ ! ]Make sure that the tapered end of the sleeve is facing the fitting body.
If inserted backwards, pipe will not be properly swaged and may pull-off.

[Disassembly/retightening]

·Can be disassembled just by loosening the nut. However, never tighten and loosen the nut while pressurized as it is very dangerous.

·8 or more disassemblies and retightening are possible by following the Full Tightening Procedure as shown in (2).

• Specifications (KTGZR·KTGZC)

Applicable Pipe Dia.		Max. Operating Pressure	Operating Temp. Range
10·12 mm	10·12	3 MPa	－20°C to 120°C

• Specifications (Other Than Above)

Applicable Pipe Dia.		Max. Operating Pressure	Operating Temp. Range
8 mm	8	50 MPa	－20°C to 250°C
6 A	10.5
10·12 mm	10·12
8 A	13.8
10 A	17.3	40 MPa
15 A	21.7	40 MPa

[Applicable Pipes]

(1) JIS G 3454 Carbon Steel Pipe for Pressure Service EN 1.0254 Equiv.

(2) JIS G 3455 Carbon Steel Pipe for High Pressure Service STS370

(3) JIS G 3456 Carbon Steel Pipe for High Temperature Service EN 1.0305 Equiv.

(4) JIS G 3459 Stainless Steel Pipe for Plumbing EN 1.4301 Equiv. and EN 1.4401 Equiv.

(5) Japan Fluid Power Association Standard
JOHS-102
Accurate Carbon Steel Pipes for Hydraulics OST