Bubble Barb Male Elbow

Model:1221

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Product Introduction

Advantages and disadvantages balance and selection suggestions:

Recommended Applicable Scenarios

Priority use: for pipelines with medium and low pressure (<150 PSI), non corrosive fluids, ambient temperature environments, and limited space requirements (such as pneumatic tools, household water purifiers, and small cooling systems).
Alternative solution: Similar accessories made of stainless steel (such as 316L), PVDF, or PPSU materials can be used for high-pressure or corrosive environments.

Key avoidance scenarios

Prohibited use: Strong acid/alkaline media, ultra-high pressure (>300 PSI), high temperature steam, abrasive containing fluids, food grade or medical high cleanliness requirements systems (brass may release trace metal ions).

Maintenance and Inspection Points

Regular inspection: Check the sealing status of the threads, whether the connection between the hose and the barb is loose, and whether there are signs of corrosion on the brass surface.
Emergency response: When a leak is discovered, prioritize replacing parts instead of forcibly tightening to avoid thread damage.

Common Problems and Solutions

1. Problem: The hose has detached from the Barb end

reason:

The size of the barb does not match the inner diameter of the hose (too large or too small).

The clamp is not tightened or has aged and failed.

solve:

Measure the inner diameter of the hose using a caliper and select a fitting with a Barb diameter slightly larger than 0.5-1mm.

Replace with heavy-duty clamps with a rolled surface to enhance friction.

2. Problem: Leakage at threaded interface

reason:

Confusion of thread types (such as mixing NPT and BSP).

Insufficient wrapping or incorrect direction of sealing tape.

solve:

Use a Thread Gauge to confirm the standard, with NPT being tapered thread and BSPP being parallel thread.

Re wrap the PTFE tape to ensure it covers the root of the thread to 2/3 of the height.

3. Problem: Green copper rust appears on the surface of brass

reason:

Long term exposure to humid or sulfur-containing environments (such as hot springs, sulfur-containing gases).

solve:

Mild corrosion: Soak in citric acid solution and scrub.

Severe corrosion: Replace with nickel plated brass or stainless steel fittings

Summary

The Hose Barb Female Elbow 90°, with its brass corrosion resistance and compact design, performs excellently in medium and low pressure, non extreme environments, but requires strict avoidance of its chemical, pressure, and temperature limitations. When selecting, a comprehensive evaluation should be conducted based on specific working conditions (medium, pressure, temperature, space), and if necessary, suppliers or industry standards (such as ASTM, ISO) should be consulted to ensure system safety and durability.

Part#	*Hose I.DMIP**	PARKER	MAF	GATES	Tectran	Automann
1221-6E	3/8*3/8	269HB-6-6	32186	G37106-0606		177.8836C
1221-8D	1/2*1/4	269HB-8-4	32194
1221-8E	1/2*3/8	269HB-8-6	32187	G37106-0806	339-8C	177.8838C
1221-8F	1/2*1/2	269HB-8-8	32191	G37106-0808	339-8D	177.8838D
1221-10D	5/8*1/4	269HB-10-4	32195
1221-10E	5/8*3/8	269HB-10-6	32188	G37106-1006	339-10C	177.88310C
1221-10F	5/8*1/2	269HB-10-8	32189	G37106-1008	339-10D	177.88310D
1221-12F	3/4*1/2	269HB-12-8	32190	G37106-1208	339-12D	177.88312D
1221-12G	3/4*3/4	269HB-12-12	32192

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