Knuckle Unions from Hansen

Knuckle Unions from Hansen are used to connect and disconnect pipe work or valves quickly and easily from pumps and existing installations. The Knuckle Union has the added benefit of a 9 degree ‘Knuckle’ movement providing greater flexibility at installation time, removing the necessity of the pipe work having to line up exactly with your pump. Available sizes: 20mm, 25mm, 32mm

NZD $10.07$27.53
$22.25
Part No:  KU20F20P 
Hansen – KU 20x20mm Female Thread – Poly Tail
Hansen Female to Poly Knuckle Union
1$22.252 - 9$20.0310+$17.80
SKU:  HAN-KU20F20P
$20.15
Part No:  KU20M20F 
Hansen – KU 20x20mm Male Thread – Female Thread
Hansen Male to Female Knuckle Union
1$20.152 - 9$18.1410+$16.12
SKU:  HAN-KU20M20F
$22.25
Part No:  KU20M20P 
Hansen – KU 20x20mm Male Thread – Poly Tail
Hansen Male to Poly Knuckle Union
1$22.252 - 9$20.0310+$17.80
SKU:  HAN-KU20M20P
$23.20
Part No:  KU20M25P 
Hansen – KU 20x25mm Male Thread – Poly Tail
Hansen Male to Poly Knuckle Union
1$23.202 - 9$20.8810+$18.56
SKU:  HAN-KU20M25P
$24.40
Part No:  KU20P20P 
Hansen – KU 20x20mm Poly Tail – Poly Tail
Hansen Poly to Poly Knuckle Union
1$24.402 - 9$21.9610+$19.52
SKU:  HAN-KU20P20P
$23.95
Part No:  KU25F25P 
Hansen – KU 25x25mm Female Thread – Poly Tail
Hansen Female to Poly Knuckle Union
1$23.952 - 9$21.5610+$19.16
SKU:  HAN-KU25F25P
$23.28
Part No:  KU25M20P 
Hansen – KU 25x20mm Male Thread – Poly Tail
Hansen Male to Poly Knuckle Union
1$23.282 - 9$20.9510+$18.62
SKU:  HAN-KU25M20P
$21.68
Part No:  KU25M25F 
Hansen – KU 25x25mm Male Thread – Female Thread
Hansen Male to Female Knuckle Union
1$21.682 - 9$19.5110+$17.34
SKU:  HAN-KU25M25F
$23.95
Part No:  KU25M25P 
Hansen – KU 25x25mm Male Thread – Poly Tail
Hansen Male to Poly Knuckle Union
1$23.952 - 9$21.5610+$19.16
SKU:  HAN-KU25M25P
$24.62
Part No:  KU25M32P 
Hansen – KU 25x32mm Male Thread – Poly Tail
Hansen Male to Poly Knuckle Union
1$24.622 - 9$22.1610+$19.70
SKU:  HAN-KU25M32P
$26.22
Part No:  KU25P25P 
Hansen – KU 25x25mm Poly Tail – Poly Tail
Hansen Poly to Poly Knuckle Union
1$26.222 - 9$23.6010+$20.98
SKU:  HAN-KU25P25P
$25.13
Part No:  KU32F32P 
Hansen – KU 32x32mm Female Thread – Poly Tail
Hansen Female to Poly Knuckle Union
1$25.132 - 9$22.6210+$20.10
SKU:  HAN-KU32F32P
$24.50
Part No:  KU32M25P 
Hansen – KU 32x25mm Male Thread – Poly Tail
Hansen Male to Poly Knuckle Union
1$24.502 - 9$22.0510+$19.60
SKU:  HAN-KU32M25P
$22.75
Part No:  KU32M32F 
Hansen – KU 32x32mm Male Thread – Female Thread
Hansen Male to Female Knuckle Union
1$22.752 - 9$20.4810+$18.20
SKU:  HAN-KU32M32F
$25.13
Part No:  KU32M32P 
Hansen – KU 32x32mm Male Thread – Poly Tail
Hansen Male to Poly Knuckle Union
1$25.132 - 9$22.6210+$20.10
SKU:  HAN-KU32M32P
$27.53
Part No:  KU32P32P 
Hansen – KU 32x32mm Poly Tail – Poly Tail
Hansen Poly to Poly Knuckle Union
1$27.532 - 9$24.7810+$22.02
SKU:  HAN-KU32P32P
$10.07
Part No:  KUB20F 
Hansen – KU 20mm Ball – Female Thread
Hansen Ball Female Thread
1$10.072 - 9$9.0610+$8.06
SKU:  HAN-KUB20F
$10.63
Part No:  KUB25F 
Hansen – KU 25mm Ball – Female Thread
Hansen Ball Female Thread
1$10.632 - 9$9.5710+$8.50
SKU:  HAN-KUB25F
$11.40
Part No:  KUB32F 
Hansen – KU 32mm Ball – Female Thread
Hansen Ball Female Thread
1$11.402 - 9$10.2610+$9.12
SKU:  HAN-KUB32F
$12.16
Part No:  KUB20P 
Hansen – KU 20mm Ball – Poly Tail
Hansen Knuckle Union Parts
1$12.162 - 9$10.9410+$9.73
SKU:  HAN-KUB20P
$13.12
Part No:  KUB25P 
Hansen – KU 25mm Ball – Poly Tail
Hansen Knuckle Union Parts
1$13.122 - 9$11.8110+$10.50
SKU:  HAN-KUB25P
$13.78
Part No:  KUB32P 
Hansen – KU 32mm Ball – Poly Tail
Hansen Knuckle Union Parts
1$13.782 - 9$12.4010+$11.02
SKU:  HAN-KUB32P
$12.18
Part No:  KUS20P 
Hansen – KU 20mm Socket – Poly Tail
Hansen Knuckle Union Parts
1$12.182 - 9$10.9610+$9.74
SKU:  HAN-KUS20P
$10.07
Part No:  KUS20M 
Hansen – KU 20mm Socket – Male Thread
Hansen Knuckle Union Parts
1$10.072 - 9$9.0610+$8.06
SKU:  HAN-KUS20M
$10.84
Part No:  KUS25M 
Hansen – KU 25mm Socket – Male Thread
Hansen Knuckle Union Parts
1$10.842 - 9$9.7610+$8.67
SKU:  HAN-KUS25M
$11.40
Part No:  KUS32M 
Hansen – KU 32mm Socket – Male Thread
Hansen Knuckle Union Parts
1$11.402 - 9$10.2610+$9.12
SKU:  HAN-KUS32M
$13.12
Part No:  KUS25P 
Hansen – KU 25mm Socket – Poly Tail
Hansen Knuckle Union Parts
1$13.122 - 9$11.8110+$10.50
SKU:  HAN-KUS25P
$13.78
Part No:  KUS32P 
Hansen – KU 32mm Socket – Poly Tail
Hansen Knuckle Union Parts
1$13.782 - 9$12.4010+$11.02
SKU:  HAN-KUS32P

Please click on the headings to show more information on the Hansen Knuckle Unions.

Hansen Knuckle Unions
Sizes & Maximum Pressure Ratings

Hansen Code Size Max Pressure @ 20°C
Male to Poly Knuckle Unions
KU20M20P 20mm Male Thread x
20mm Poly Pipe Tail
10 Bar
KU20M25P 20mm Male Thread x
25mm Poly Pipe Tail
10 Bar
KU25M20P 25mm Male Thread x
20mm Poly Pipe Tail
10 Bar
KU25M25P 25mm Male Thread x
25mm Poly Pipe Tail
10 Bar
KU25M32P 25mm Male Thread x
32mm Poly Pipe Tail
10 Bar
KU32M25P 32mm Male Thread x
25mm Poly Pipe Tail
10 Bar
KU32M32P 32mm Male Thread x
32mm Poly Pipe Tail
10 Bar
Female to Poly Knuckle Unions
KU20F20P 20mm Female Thread x
20mm Poly Pipe Tail
10 Bar
KU25F25P 25mm Female Thread x
25mm Poly Pipe Tail
10 Bar
KU32F32P 32mm Female Thread x
32mm Poly Pipe Tail
10 Bar
Poly to Poly Knuckle Unions
KU20P20P 20mm Poly Pipe Tail x
20mm Poly Pipe Tail
10 Bar
KU25P25P 25mm Poly Pipe Tail x
25mm Poly Pipe Tail
10 Bar
KU32P32P 32mm Poly Pipe Tail x
32mm Poly Pipe Tail
10 Bar
Male to Female Knuckle Unions
KU20M20F 20mm Male Thread x
20mm Female Thread
10 Bar
KU25M25F 25mm Male Thread x
25mm Female Thread
10 Bar
KU32M32F 32mm Male Thread x
32mm Female Thread
10 Bar
Socket - Poly Pipe Tail
KUS20P Socket - 20mm Poly Pipe Tail 10 Bar
KUS25P Socket - 25mm Poly Pipe Tail 10 Bar
KUS32P Socket - 32mm Poly Pipe Tail 10 Bar
Socket - Male Thread
KUS20M Socket - 20mm Male Thread 10 Bar
KUS25M Socket - 25mm Male Thread 10 Bar
KUS32M Socket - 32mm Male Thread 10 Bar
Ball - Poly Pipe Tail
KUB20P Ball - 20mm Poly Pipe Tail 10 Bar
KUB25P Ball - 25mm Poly Pipe Tail 10 Bar
KUB32P Ball - 32mm Poly Pipe Tail 10 Bar
Ball - Female Thread
KUB20F Ball - 20mm Female Thread 10 Bar
KUB25F Ball - 25mm Female Thread 10 Bar
KUB32F Ball - 32mm Female Thread 10 Bar

Handy Tips Video

Hansen Knuckle Unions
Product Information

Hansen Knuckle Union
  • Features & Applications
  • Used to connect and disconnect pipe work or valves quickly and easily from pumps and existing installations.
  • Ultimate flexibility for a quick connect / disconnect solution around pumps or along the trunk of a pipe.
  • A 9º ‘Knuckle’ movement provides greater flexibility at installation time, removing the necessity of the pipe work having to line up exactly with your pump.
  • The pump can easily be removed or installed from the system for servicing by undoing the common nut.
  • The pump can be misaligned from the pipe work by a total of 9º.
  • Multiple configurations enable this fitting to meet the needs of just about any situation.
  • Provides the ability to connect to poly pipe applications directly from the pump or in-line.
  • Fits onto the extensive range of Hansen Easy Fit & True Fit Pipe Fittings.
  • Approvals
  • AS/NZS 4020 - HANSEN™ Quick Connect Unions from 20mm to 32mm have met the requirements of AS/NZS 4020 Australia & New Zealand drinking water test standard.
  • Fire Rating UL94HB
Hansen Knuckle Union

Product Video