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Applications

Coolant transfer in heater and coolant circuits

Automobiles, buses, mobile/off-road equipment, trucks

Other equipment or vehicles with heating lines

Silicone Coolant/ Heater Hose

Series 6620 is a softwall silicone coolant/ heater hose designed to transfer high temperature solutions between the radiator and engine on automobiles, buses, mobile/off-road equipment, trucks and any engine incorporating a radiator application. The hose meets or exceeds SAE J20R1 Class A, ISO 1307-1997 and TMC RP303B requirements, with a temperature range of -76F to +392F (-60C to + 200C). The multiple plies of textile reinforcement provide durability and the silicone construction resists coolant solutions, aging, cold leaks, cracking, delamination, ozone and peeling. Series 6620 is manufactured on 130-foot mandrels- providing the longest hose lengths in the industry- for tight dimensional tolerances and maximum inventory utilization.

Tube: Black silicone (other colors available; contact Parker)
Reinforcement: Multiple high temperature textile plies
Cover: Red Silicone, matte finish (other colors available; contact Parker)
Temp Range: -76F to + 392F (-60C to + 200C)
Brand Method: Black text on yellow stripe
Brand Example: PARKER SILICONE SERIES 6620 -76F to +392F (DATE CODE) MADE IN ITALY
Max. Rec. WP 1/3 of minimum burst pressure shown in the table below
Industry Standards: SAE J20R1 Class A; TMC RP303B ; ISO 1307-1997 for dimensional tolerance
Vacuum: Not recommended

 
 
Part Number Size
(in)
ID
(in)
ID
(mm)
OD
(in)
OD
(mm)
Approx Wt
(lbs/ft)
Approx
Wt
(kgs/ft)
Min
Burst
Press
(psi)
Perm
Cplg
Rec
Std Pack Qty
(ft)
Stock Status
6620-0625130 5/8 0.630 16.0 0.945 24.0 0.15 0.07 750 * 130 Y
6620-0750130 3/4 0.748 19.0 1.142 29.0 0.26 0.12 600 * 130 Y
6620-1000130 1 0.984 25.0 1.378 35.0 0.33 0.15 480 * 130 Y
6620-1250130 1-1/4 1.260 32.0 1.654 42.0 0.40 0.18 390 * 130 N
6620-1375130 1-3/8 1.378 35.0 1.772 45.0 0.44 0.20 360 * 130 N
6620-1500130 1-1/2 1.496 38.0 1.890 48.0 0.47 0.21 330 * 130 N
6620-1625130 1 5/8 1.654 42.0 2.047 52.0 0.52 0.24 300 * 130 N
6620-1750130 1-3/4 1.772 45.0 2.165 55.0 0.54 0.24 285 * 130 N
6620-2000130 2 2.008 51.0 2.402 61.0 0.61 0.28 255 * 130 N

Table Notes 
* Couplings:Refer to CrimpSource at www.safehose.com for coupling recommendations and crimp specifications.

** Stock: "Y" indicates stocked item; "N" indicates non-stocked item. Stock status subject to change. Contact Parker Customer Service.









WARNINGS!
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.