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421FS | Parker Fire Suppression Hose

Parker 421FS Fire Suppression hose is used on automatic fire suppression equipment. The most common use of this hose is on mining fire suppression equipment.
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Parker 421FS Fire Suppression Hose

Specifications:  MSHA
Inner Tube:  Synthetic rubber
Reinforcement:  Ohio high tensile wire braid
Cover:  Red CPE
Temperature Range:  -40°F to +257°F (-40°C to +125°C)
Fittings:  43 series

Parker 421FS Fire Suppression Hose | Sizes and Specifications

Part No

Inside Diameter

Outside Diameter

Working
Pressure

Min
Bend Radius

Weight

Coupling

 421FS

in

mm

in

mm

psi

MPa

in

mm

lb/ft

kg/m

Series

421FS-4

1/4

6.3

0.53

13

2750

18.9

4

100

0.16

0.24

43

421FS-8

1/2

12.5

0.81

21

2000

13.7

7

180

0.29

0.43

43

421FS-12

3/4

19

1.09

28

1250

8.6

9.5

240

0.42

0.63

43

421FS-16

1

 25.4

 

 

1000

6.8

12

304

 

 

43

 

 

IMPORTANT!
Hose and hose fittings series must be correctly matched. Using any fittings other than those specifically designated by the hose manufacturer for use with each specific hose can lead to hose assembly failure. Hose assembly failures have lead to damage, injury and death.

WARNING: This product can expose you to chemicals including lead and/or DEHP and/or carbon black, which are known to the State of California to cause cancer or birth defects or other reproductive harm.  For more information go to www.P65Warnings.ca.gov