ALTERNATIVE FUEL SYSTEMS, INC.

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LOW PRESSURE HOSES

FOR ALL YOUR COOLANT, VAPOR LPG, VACUUM, AND AIR CLEANER HOSE REQUIREMENTS

All styles of hose may be supplied in bulk, or cut to custom lengths, with or without hose ends installed. When ordering custom length hoses, order by PART  NUMBER-LENGTH IN INCHES. Example: The part number for an 18" length of 5/8" Vapor hose is H715-18.

Part Number  Type I.D O.D Clamp Size Material Reinforcement Burst Pressure

H715

Vapor

5/8"

 

8H

Neoprene

Phosphorus Bronze Steel Wire

 

H736

Vapor

3/4"

 

10H

Neoprene

Phosphorus Bronze Steel Wire

 

H717

Vapor

7/8"

 

12H

Neoprene

Phosphorus Bronze Steel Wire

 

H718

Vapor

1"

 

12H

Neoprene

Phosphorus Bronze Steel Wire

 

H727

Vapor

1-1/4"

 

20H

Neoprene

Phosphorus Bronze Steel Wire

 

 This non-porous vapor hose is oil and heat resistant. The coil wire reinforcement allows for tight radius bends without restricting flow. This is the preferred hose for making the connection from the converter fuel outlet to the carburetor fuel inlet.


 

Part Number  Type I.D O.D Clamp Size 45° Female Flare hose end Material Reinforcement Working Pressure
H723 Water 1/4"   U5 4797-4B Rubber Single braid nylon 300 P.S.I.
H745 Water 5/16""   U5 N/A Rubber Single braid nylon 200 P.S.I.
H704 Water 3/8"   6H 4739-6B Rubber Single braid nylon 200 P.S.I.
H714 Water 1/2"   8H 4797-8B Rubber Single braid nylon 200 P.S.I.
H706 Water 5/8"   10H N/A Rubber Single braid nylon 200 P.S.I.
H707 Water 3/4"   12H N/A Rubber Single braid nylon 200 P.S.I.

This oil and grease resistant hose is for all coolant connections. It is also suitable for use in making the vapor connection from the converter fuel outlet to the carburetor fuel inlet, when the application does not require tight radius bends. Water hose is used for making PCV connections as well.


 
Part Number  Type I.D O.D Fitting Size Clamp Size Material Working Pressure
H733 Vacuum 3/32"   1/8"   Neoprene Negative
H705 Vacuum 5/32"   3/16" UM5006-131 Neoprene Negative
H703 Vacuum 7/32"   1/4" UM5007 Neoprene Negative.
H737 Vacuum 3/8"   3/8" UM5079-132 Neoprene Negative

Neoprene vacuum hose for all engine vacuum connections - Filterlockoff, Vacuum advance, and balance lines.


HOSE CLAMPS

Part Number

Metric Diameter Range

Inch Diameter Range

Hose Size

U5

11MM - 18MM

.43 - .71

3/8"

6H 9MM - 22MM .35 - .86 3/8"
8H 13MM - 23MM .5 - .9 1/2"
10H 14MM - 27MM .55 - 1.06 5/8"
12H 14MM - 32MM .55 - 1.25  
20H 19MM - 44MM .75 - 1.73  
24H      
32H 40MM - 63MM 1.57 - 2.48  
36H