ShopAmerex.com · Amerex 02234 datasheet · https://shopamerex.com/products/amerex-02234-nitrogen-hose-assembly-1-4-x-20 · Figures as published by Amerex · Verified Sep 2, 2026
Genuine Amerex service part·Part no. 02234
Amerex 02234 Nitrogen Hose Assembly, 1/4 x 20
Amerex 02234 is the nitrogen hose assembly (Amerex part 02234, item 15) that carries expellant gas from the “T”-handle cylinder valve to the agent cylinder on the 110 cu. Full overview ↓
- Part no.
- 02234
- Pack
- Pack of 1
- Fits
- 680R, 681R
- Parts Book
- Page 19
- Free shipping (orders over $100)
- Returns per our refund policy.
Genuine Amerex part from an authorized Amerex distributor. Not a generic substitute.
Ordering parts for a service route?
Quotes for part lists, PO and tax-exempt orders, and parts not yet listed.
Which models does the Amerex 02234 fit?
Per the Amerex Parts Book · page 19| Fits | Extinguisher | UL rating | Capacity | Price | Link |
|---|---|---|---|---|---|
| Model 680R |  10897 Amerex 680R 150 lb Wheeled Sodium Chloride Fire ExtinguisherParts Book p.23 (PDF p.25) |
150 lb | $12,075.00 | View | |
| Model 681R |  10898 Amerex 681R 250 lb Wheeled Copper Powder Fire ExtinguisherParts Book p.23 (PDF p.25) |
250 lb | $16,921.00 | View |
Parts list for 125/150 lb. dry chemical wheeled models, 110 cu. ft. nitrogen cylinder
Fitment per the Amerex Parts Book. Check the part number against your unit’s nameplate before ordering.
What is the Amerex 02234?
Amerex 02234 is the nitrogen hose assembly (Amerex part 02234, item 15) that carries expellant gas from the “T”-handle cylinder valve to the agent cylinder on the 110 cu. ft. wheeled models 467, 469, 470 and 472. The Parts Book reuses the same part number as the Argon Hose Assembly at item 14 on the Argon page for the 680R and 681R Class D units. The owner's manual requires the nitrogen supply hose assembly be hydrostatically tested every 12 years at 3000 PSI. The Parts Book notice states Amerex replacement parts must be used to protect the UL listing and keep the warranty in effect.
Amerex 02234 specifications
| Part number | 02234 |
|---|---|
| Description | Nitrogen Hose Assembly |
| Parts Book page | Printed p.17 (PDF p.19) |
| Diagram item | 15 |
| Pack quantity | 1 |
| Models | 467, 469, 470, 472, 680R, 681R |
|---|
| Amerex item number | 02234 |
|---|
Part data as published by Amerex. Confirm against the current Parts Book revision before ordering for a unit in service.
Amerex 02234 documents
Official Amerex publications · PDF- Parts Book p. 19 Parts list for 125/150 lb dry chemical, 110 cu. ft. nitrogen cylinder wheeled models 467, 469, 470, 472
- Owner's Service Manual (05605) Wheeled 125/150 lb N2 cylinder operated - models 450/452/467/469/470/472
- Owner's Service Manual (05620) Wheeled 150/250 lb Class D - models 680/681
- Tech Tip - Amerex Products Need Amerex Parts Why genuine Amerex parts
- Amerex Warranty Statement
Current Amerex publications, hosted on ShopAmerex so links do not break when Amerex reorganizes its site.
Other parts on Parts Book page 19
Parts list for 125/150 lb. dry chemical wheeled models, 110 cu. ft. nitrogen cylinder · All 29 parts| Part no. | Part | Pack | Price | Quantity and add to cart |
|---|---|---|---|---|
| 02235 | Pack of 1 | $1,152.00 | ||
| 02272-P001 | Pack of 1 | $5.99 | ||
| 04128 | Pack of 1 | $1,606.00 | ||
| 04444 | Pack of 1 | $69.99 | ||
| 04523 | Pack of 1 | $28.99 | ||
| 06032 | Pack of 1 | $88.99 | ||
| 06993 | Pack of 1 | $176.00 | ||
| 07025 | Pack of 1 | $903.00 |
Item numbers refer to the exploded view on the Parts Book page. Model-specific items are marked in the Amerex parts list; confirm before ordering.
Amerex 02234 questions
What does the Amerex 02234 hose fit?
The 110 cu. ft. nitrogen wheeled models 467, 469, 470 and 472, and the Argon-charged 680R/681R Class D units, where the Parts Book calls it the Argon Hose Assembly.
What size is it?
The Amerex webstore lists it as “Nitrogen Hose Assembly 1/4 X 20”; the Parts Book prints no dimensions.
Does it need periodic testing?
Yes - the owner's manual requires the nitrogen supply hose assembly be hydrostatically tested every 12 years at 3000 PSI (20,684 kPa).
What else is on that 12-year test schedule?
The agent cylinder at 500 PSI and the discharge hose assembly at 300 PSI, per the same manual step.
What should be checked at annual maintenance?
The manual's troubleshooting guide directs that a nitrogen hose found cut, cracked or abraded be replaced.
Where is it listed in the Parts Book?
Item 15 on printed p.17 (PDF p.19) and item 14 on p.23 (PDF p.25).
Why use the genuine Amerex part?
The Parts Book notice states the Amerex warranty is voided by generic, off-the-shelf or substitute parts, and that failure to use Amerex replacement parts could cause the extinguisher to malfunction.