Industrial Pipe Fitting & Valve Component Poly Bags — 9x18 in., 4 mil

These 9x18 flat poly bags at 4 mil are designed for industrial pipe fittings, valve components, and narrow mechanical hardware that require heavy-duty puncture resistance and moisture protection. The 18-inch length accommodates most standard pipe nipples, unions, elbows, and flanged fittings through 4-inch nominal pipe size, while the 4 mil LDPE film withstands the sharp threads and cast edges common in pipe fitting inventory.

Specs: 9" x 18" | 4 mil | LDPE | 1000/Carton | FDA/USDA Compliant

Applications

• NPT and BSP pipe nipples, unions, and close nipples
• Ball valve and gate valve individual bagging for retail and wholesale
• Industrial fittings: elbows, tees, couplings, and reducers
• Automotive and hydraulic hose end fittings
• Long medical instruments and procedure kit components

Features

• 4 mil industrial thickness — resists puncture from threaded ends and cast iron edges
• 9x18 format accommodates standard pipe fittings and elongated hardware
• Bottom-sealed for load-bearing strength under heavy metal parts
• Open end for rapid loading at distribution picking operations
• Heat sealable, tie-able, stapleable, or tape-closable
• 1000 bags per carton for production-line bagging volumes

Material Notes

Made from 100% virgin LDPE resin. At 4 mil, this film provides industrial-grade puncture resistance for threaded, cast, and machined metal components that would pierce lighter-gauge bags during handling. LDPE is resistant to moisture, oils, and most industrial lubricants commonly encountered in pipe fitting and valve distribution environments. FDA/USDA compliant for incidental food contact applications.

Use Case Notes

Pipe fitting distributors and MRO supply houses commonly bag individual fittings for point-of-sale display and pick-bin inventory. The 9x18 bag accommodates most 2-inch through 4-inch pipe nipples at standard lengths (3 to 12 inches), as well as ball valve bodies with handle removed. The 4 mil thickness prevents sharp NPT threads from penetrating the bag and contaminating adjacent inventory.

Common Questions

Q: What is the maximum fitting size this bag will accommodate?
A: The 9-inch width and 18-inch depth will accommodate most fittings up to 3-inch nominal pipe size in standard configurations. For 4-inch and larger fittings with wide flanges or body diameters, a wider bag format (10x12 or 12x15) may be required depending on fitting dimensions.

Q: Is 4 mil necessary for pipe fittings, or will 2 mil work?
A: For threaded fittings with sharp NPT or BSP thread form ends, 2 mil bags frequently puncture during picking and distribution handling. The 4 mil gauge significantly reduces bag failure rates for sharp-threaded hardware. For smooth, rounded components without thread points, 2 mil may be adequate.

Why Buy

Pipe fitting and valve distributors need a bag that survives the rough handling of steel and cast iron threaded hardware. The 9x18 4 mil format provides a reliable, production-line-ready solution for individual fitting bagging at 1000 per carton, balancing protection level with per-unit cost for high-volume MRO and industrial distribution operations.