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Applications

• LP gas/propane
• Fork lifts, utility equipment

LP Gas Hose Stainless Steel Reinforced, Rubber Cover - UL21

Series 7233 is a rubber covered, small diameter, extremely durable liquefied petroleum gas (LPG)/propane transfer hose for applications such as fuel line hose on forklifts and utility equipment. The hose meets all Underwriter Laboratories (UL21) requirements. The construction incorporates high tensile stainless steel braided reinforcement for superior strength, durability and kink resistance. The perforated rubber cover is resistant to mild chemicals, oil and ozone. Series 7233 is qualified with Parker crimp couplings and is compatible with Parker Series 20 reattachable fittings.

NOTES:
Refer to Technical Resources>Critical Applications for safety, handling and use information.

Series 7233 and Natural Gas: The molecules of natural gas are small, enhancing their ability to permeate through standard rubber hose constructions. The permeation process is more rapid as the working pressure increases, and natural gas accumulates with potentially dangerous consequences. Series 7233 may be used for natural gas service, but ONLY under ALL of the following conditions:
• The application must be in a well-ventilated environment: Outdoors, or indoors with significant continuous air movement.
• Series 7233 is not to replace fixed/rigid pipe where that material is more appropriate due to reduced permeation and overall strength and durability. Use rigid pipe, non-permeable tubing or hose with barrier constructions to convey natural gas whenever possible.

Series 7233 and Compressed Natural Gas (CNG): Do not use Series 7233 for CNG engine applications in on-road vehicles, or for high pressure CNG dispenser/transfer applications (typically 2900 psi or greater). In other applications—where CNG is regulated to pressures within the rating of Series 7233—apply the guidelines for natural gas applications stated above. Always review and adhere to all applicable government and industry regulations and standards prior to installing this hose in a CNG or natural gas application.

Series 7233 and Anhydrous Ammonia (NH3):
Do not use Series 7233 with anhydrous ammonia.

Tube: Black nitrile
Reinforcement: One stainless steel braid
Cover: Black chloroprene; perforated wrapped finish
Temp. Range: -40°F to +180°F (-40°C to +82°C) (The hose construction is capable of this rating, but LP Gas should NEVER be conveyed over 140°F/60°C)
Brand Method: Embossed
Brand Example: PARKER SERIES 7233 SS CAUTION LP GAS HOSE U ® ISSUE NO. XXXX 350 PSI MAX WP 1750 PSI MIN BURST (DATE CODE)
Design Factor: 5:1
Industry Standards: UL21
Vacuum: Not recommended
Packaging: Reels

 
 
Part No. ID
(in)
ID
(mm)
Reinf.
Plies
OD
(in)
OD
(mm)
Approx.
Wt. (lbs/ft)
Min.
Bend
Rad (in)
Max.
Rec.
WP (psi)
Perm
Cplg
Rec *
Std
Pack
Qty (ft)
Stock
Status
**
7233-311 5/16 7.9 1 0.675 17.1 0.19 4 350 HY 500 Y

Table Notes 
* Permanent Couplings: Refer to CrimpSource at www.safehose.com for coupling recommendations and crimp specifications.
Reattachable Couplings: Parker Series 20.
** Stock: “Y” indicates stocked item; “N” indicates non-stocked item. Stock status subject to change. Contact Parker Customer Service.









WARNING! Use only with couplings qualified by Parker. Do not use with male swivel couplings or other couplings containing o-rings, which may dry out, crack and fail over time.