GST II | Parker 7057 Series Hose (Blue)

GST II - General Service Hose


GST® II hose is a versatile general purpose hose designed to handle air, mild chemicals and water. The hose construction incorporates a tube that is compatible with light oil mists found in air tool lubricating systems, and the multiple plies of textile reinforcement provide flexibility. The cover is resistant to abrasion, heat and ozone, and is available in multiple standard colors for color-coded identification.

Parker GST II Hose Sizes & Specifications 

Parker GST II Hose
  • Tube: Black EPDM; ARPM Class C oil resistance
  • Reinforcement: Multiple textile plies
  • Cover: Blue EPDM; smooth finish
  • Temp. Range: -40°F to +212°F (-40°C to +100°C)
  • Brand Method: White ink on blue hose
  • Brand Example: PARKER (SERIES) GST® II (ID) XXX PSI MAX WP MADE IN USA (DATE CODE)
  • Design Factor: 4:1
  • Industry Standards: ARPM Class C oil resistant tube; ARPM IP-7 (7031R only)
  • Applications: Air (including oil mist), mild chemicals, water. Agriculture, construction, general industrial
  • Vacuum: Not recommended
  • Compare to: Boston Bosflex A/W; Gates Adapta Flex; Thermoid Valuflex GS; Veyance Horizon General Purpose
  • Packaging: Reels; cartons

Part Number

ID

Reinf
Plies

OD

Approx Wt

Min Bend Radius

Max Rec WP

Perm. Cplg
Rec

in

mm

in

mm

lbs/ft

kg/ft

in

mm

psi

bar

7057-50250

1/2

12.7

2

0.844

21.4

0.23

0.10

4.5

114.3

250

17.2

HY

7057-75304

3/4

19.1

4

1.156

29.4

0.37

0.17

6.0

152.4

300

20.7

HY

7057-7530450

3/4

19.1

4

1.156

29.4

0.37

0.17

6.0

152.4

300

20.7

HY

 


NOTE:
Do not with use with oil or refined fuel.

WARNING! Couplings attached with bands or clamps may reduce the working pressure of the hose assembly to less than the maximum rated working pressure of the hose. Refer to the NAHAD Industrial Hose Assembly Guidelines.

 

 

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