Parker Thermal Cooling 627 Hose
The 627 is designed for transferring coolant in high performance computers and data farms. The tube is a proprietary compounded EPDM, which is peroxide cured to enhance the chemical and temperature resistance, while increasing the sealing capabilities of the hose for the computer and electronics industry. The EPDM cover is compounded for added features such as ozone and abrasion resistance. The engineered synthetic fiber reinforcement easily withstands the pressures created in the fluid loop. The combination of these hose features added with the UL Flame resistance makes the 627 hose very effective in helping control the temperatures of the operating systems
Features/Benefits:
- Peroxide cured EPDM tube
- -40°F to +212°F (-40°C to +100°C) temp rating
- 150 psi maximum working pressure rating
- 4:1 Safety Factor
- UL94 HB Flame resistance rating
Applications:
- Data farms
- High performance computers
Industry Standards:
- UL94 Flame Resistance Rating HB
Safety/Technical:
- Design Factor: 4:1
- Designed to be used with hose barbs and clamps

Minimum Bend Radius
1.3 to 4.5 inch, 33 to 114 mm, 1.3 to 9 inch, 33 to 228 mm
Hose Inner Tube Material
Ethylene Propylene Diene Monomer (EPDM) peroxide cured, Black peroxide cured
Cover Material
Ethylene Propylene Diene Monomer (EPDM)
Application
Media Transfer
Media
Chemicals – Check your fluid compatibility with our catalogue chart.
Specifications Met
UL 94 (HB)
Weight
0.19 to 0.68 kg/m, 0.19 to 1.24 kg/m, 0.13 to 0.46 lb/inch, 0.13 to 0.84 lb/inch
Inside Diameter
3/8 to 1 inch, 3/8 to 1-1/2 inch, 9.5 to 25.4 mm, 9.5 to 38.1 mm
Maximum Operating Pressure
1.034 MPa, 150 psi, 10 bar
Outside Diameter
0.7 to 1.4 inch, 0.7 to 2 inch, 16.7 to 36.3 mm, 16.7 to 50 mm
Hose Reinforcement Material
Mutiple Plies of Textile
Cover Color
Black
Maximum Operating Temperature
212 °F, 100 °C
Minimum Operating Temperature
-40 °F