Gasket replacement

Gasket list
Gasket replacement

Cam arm & pin
replacement method

Chain

Reading the model number display

Technical data

Reference Working Pressure Range

Maximum Screw Tightening Torque

Weight table

Precautionary Material on Handling

Gasket listGasket replacement

Gasket list (Replacement parts)

Standard KAMLOK COUPLER is fitted with Buna-N (NBR) gaskets.
Select and install the gasket according to the fluid and usage conditions.

*The following shows the operating temperature range. Note that this does not guarantee use under various conditions (fluid, pressure, number of attachments/detachments, etc.).
* Because fluorine resin type gaskets using fluorine resin (PTFE and FEP) lack elasticity, they may leak depending on conditions of use. Please contact us for details.
Please contact us for details. (Consult our website at http://english.toyox-hose.com/.)
*For perfluoroelastomer products such as “Kalrez,” with excellent chemical and heat resistance, please contact TOYOX.

Buna-N (NBR) (equipped as standard)

Reference Working Temperature Range / -10 ~ 100℃

Suitable for use of water, oils, fats, etc.
Neoprene (CR)

Reference Working Temperature Range / -30 ~ 80℃

Excellent weather resistance, heat resistance and chemical resistance.

With blue mark
Fluorine resin (PTFE)*2

Reference Working Temperature Range / -50 ~ 100℃

Complies with Food Sanitation Act Notice No. 370 of the Ministry of Health and Welfare.
Excellent chemical resistance, heat resistance and cold resistance.
Fluorine resin (PTFE) jacket (with fluorine rubber)*2

Reference Working Temperature Range / 0~180℃

Excellent heat resistance and chemical resistance.

With red mark
Fluorine rubber

Reference Working Temperature Range / 0~180℃

Excellent heat resistance and chemical resistance.

With red mark
Silicone rubber

Reference Working Temperature Range / -50~150℃

Complies with Food Sanitation Act Notice No. 370 of the Ministry of Health and Welfare. Excellent chemical resistance, heat resistance and cold resistance.
Ethylene-propylene rubber (EPDM)

Reference Working Temperature Range / -10~120℃

Excellent heat resistance and chemical resistance.

With yellow mark
White Neoprene (CR)

Reference Working Temperature Range / -10~80℃

Excellent weather resistance, heat resistance and chemical resistance.
Super fluorine rubber*1

Reference Working Temperature Range / 0~180℃

Complies with Food Sanitation Act Notice No. 370 of the Ministry of Health and Welfare.
Excellent heat resistance and chemical resistance.

Steam Use OK
Silicone rubber fully covered with fluorine resin (FEP)*2

Reference Working Temperature Range / -50~120℃

Excellent cold resistance and chemical resistance.
Fluorine rubber fully covered with fluorine resin (FEP)*2

Reference Working Temperature Range / 0~120℃

Excellent chemical resistance and heat resistance.

Guideline for gasket replacement

Assess the force required to close the cam arms when connecting or disconnecting KAMLOK fittings. If the force required is too low, the gasket seal may be compromised and leakage may occur. In this case, we recommend replacing the gasket.

*1 Regarding couplers using super fluorine rubber, when the fluid is saturated steam, use at working temperature 160℃ or lower and working pressure 0.6 MPa or lower.

*2 When performing steam cleaning or high-temperature cleaning on fluorine resin (PTFE), fluorine resin (PTFE) jacket (with fluorine rubber), silicone rubber fully covered with fluorine resin (FEP), or fluorine rubber fully covered with fluorine resin (FEP) couplers, be sure to keep the adapter connected. If the gasket is placed in a high temperature environment without connecting the coupler and adapter, the gasket may deform and cause fluid leakage.

Part Number	GK-NBR	GK-CR	GK-PTFE	GK-TJ/F	GK-FKM	GK-Q
Materials	Buna-N (NBR)	Neoprene (CR)	Fluorine resin (PTFE)	Fluorine resin (PTFE) jacket (with fluorine rubber)	Fluorine rubber	Silicone rubber
Size	1/2”~6”	1/2”~6”	1/2”~6”	1/2”~4”	1/2”~3”	1/2”~6”
Reference Working Temperature Range Upper Limit	100℃	80℃	100℃	180℃	180℃	150℃
Reference Working Temperature Range Lower Limit	‐10℃	‐30℃	‐50℃	0℃	0℃	‐50℃
Compliant with Food Sanitation Act			〇			〇
Steam Use

Part Number	GK-EPDM	GK-WCR	GK-FKM/S	GK-TZ/Q	GK-TZ/F
Materials	Ethylene-propylene rubber (EPDM)	White Neoprene (CR)	Super fluorine rubber	Silicone rubber fully covered with fluorine resin (FEP)	Fluorine rubber fully covered with fluorine resin (FEP)
Size	1/2”~3”	1/2”~ 2 1/2”,4”	1/2”~2”	1/2”~4”	1/2”~4”
Reference Working Temperature Range Upper Limit	120℃	80℃	180℃ ※1	120℃	120℃
Reference Working Temperature Range Lower Limit	‐10℃	‐10℃	0℃	‐50℃	0℃
Compliant with Food Sanitation Act			〇
Steam Use			〇 *1

*1 Regarding couplers using super fluorine rubber, when the fluid is saturated steam, use at working temperature 160℃ or lower and working pressure 0.6 MPa or lower.

Insert a flathead screwdriver or the like between the main body and the gasket.
Remove the gasket without damaging the gasket seat of the main body.
Replace with a new gasket and push it in by hand.
Push in with both hands so that it is as even as possible.
Confirm that it fits properly into the main body groove to complete replacement.

*When removing the gasket, a part of the gasket may break off and remain in the coupling, which may cause contamination of foreign matter or difficulty in installing a new gasket.