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General Applications

General Applications

 N/A
  • Easy-handling, textile-reinforced construction for use on trailer mounted line pumps where longer hose lengths are required
  • Larger sizes used on concrete boom pumps
  • Replacement hose for wire-reinforced concrete hose where lightweight and ease of handling are warranted

Construction

Tube

 N/A Black conductive NR - abrasion resistant

Reinforcement

 N/A High tensile textile cords

Cover

 N/A Black conductive SBR/NR blend - abrasion and ozone resistant

Working Pressure

Working Pressure

 N/A Constant Pressure - 1275 PSI

Service Temperature

Service Temperature [Min]

 N/A -22 ºF-30 ºC

Service Temperature [Max]

 N/A 176 ºF80 ºC

Branding

Branding

 N/A ALFAGOMMA - ITALY 74S 85 BAR (1275 PSI) W. P. HEAVY DUTY CONCRETE PUMPING (in yellow layline with black letters)

Features and Advantages

Features and Advantages

 N/A
  • Heavy Duty Construction – Durable, thick walled construction, resists kinking, elongation and vibration during operation. All sizes rated to working pressure of 1275 PSI with 2:1 safety factor.
  • Textile Yarn Reinforcement – Operator friendly, lighter weight versus wire reinforced hoses for easier handling while still providing extended service life in heavy-duty applications.
  • Abrasion Resistant Tube and Cover – The NR (natural rubber) tube resists the wear caused by the flow of abrasive concrete. The SBR/NR blend cover resists the wear caused by dragging over rough surfaces, as well as environmental (UV/ozone) damage.
  • Cold Flex Materials – Hose remains flexible in sub-zero temperatures.

Nominal Specifications

ID

 N/A 4 in102 mm

OD

 N/A 5.04 in128 mm

Walll Thickness

 N/A 13 mm

Max. Working Pressure

 N/A 1275 psi

Min. Bending Radius

 N/A 20 in

Standard Length

 N/A 100 ft

Weight

 N/A 3.34 lbs/ft

Specifications

Brand

 N/A Alfagomma®

Type

 N/A Material Transfer, Cement, Concrete Hoses

Color

 N/A Black

Series

 N/A T74SAA

Coupling Suggestions

Coupling Suggestions

 N/A CHC-CA Series "California Style" couplings or CHC-US Series "Victaulic Style" couplings (see page 247 in the KOA Couplings and Accessories catalog or visit https://KOA.link/CHC)

Note

Note

 N/A Kuriyama offers a full line of Quick-Acting couplings, pin lug shank couplings and combination nipples. Refer to current Kuriyama-Couplingsim and Accessories Catalog for type — KOA.link/K0A-Couplings-Catalog