STANDARD
'GK' couplings are symmetric quick couplings designed for agricultural, gardening, construction and public service applications.
OPERATION
‘GK’ couplings are connected by pushing and rotating the two couplings together. The claw distance is a 40 mm and therefore interchangeable between all dimensions from DN 10 to DN 38. 'GK' couplings are not interchangeable with Express couplings complying with NF E 29.573 and European air couplings complying with DIN 3489.
N.B.: Due to the wide range of ‘GK’-type seals, ‘GK’ couplings can not always be connected with those of other anufacturers.
APPLICATION
For agricultural, gardening, construction and public service applications.
WORKING PRESSURE
20 bar / 290 psi		 TEMPERATURE
-30°C / -22°F up to 120°C / 248°F
Hose, coupling, assembly method and seal must be chosen in relation with the desired application and temperature range.
MATERIAL
Coupling
Brass 2.0401 - Ms 58 hot drop forged (CuZn39Pb3)
Seal
NBR standard
FPM on request
ASSEMBLY
Worm drive clamps
Low pressure ferrules
Claw clamps
THREADS
Male thread: EN ISO 228-1, BSP
Female thread: EN ISO 228-1, BSP
FEATURES 1. Claw distance 40 mm
2. Easily connected and disconnected coupling
3. The serrated shank ensures perfect rigidity when assembled with worm drive clamps or low pressure ferrules
4. The high mechanical strenght of ‘GK’ claws ensures longer working life
5. Hot drop forged chrome-treated brass Ms58
 
Size GKH – with serrated hose shank GKF – female threaded BSP GKM – male threaded BSP
Номер Номер Номер
¼” GKH-007 GKF-007 GKM-007
⅜” GKH-009 GKF-009 GKM-009
½” GKH-013 GKF-013 GKM-013
⅝” GKH-016 GKF-016 GKM-016
¾” GKH-019 GKF-019 GKM-019
1” GKH-025 GKF-025 GKM-025
1 ¼” GKH-032 GKF-032 GKM-032
1 ½” GKH-038 GKF-038 GKM-038

GEKA cap GKC GEKA seal GKS-NRR
GKS-VI
GeKa couplings with serrated hose shank and collar are suitable for RKC safety hose clamps.


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