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Installation recommendations for fittings

Short or long 1/4-28 fitting with flangeless ferrule and stainless steel lock ring

Short or long 1/4-28 fitting with flangeless ferrule and stainless steel lock ring
Topic LCI-USG-0067, Last Updated 11/08/2024

Tighten the fitting finger-tight.

Important: Short fittings are intended for use with 1/16-inch OD tubing. Long fittings are intended for use with 1/8-inch OD tubing.

Figure 1: Short 1/4-28 fitting with flangeless ferrule and SST lock ring, first use or reinstallation
Compression screw
Lock ring
Ferrule
End of lock ring with larger ID
Figure 2: Long 1/4-28 fitting with flangeless ferrule and SST lock ring, first use or reinstallation
Compression screw
Lock ring
Ferrule
End of lock ring with larger ID

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To avoid risk of personal injury and to prevent damage to laboratory equipment, always operate your Waters products in accordance with the applicable operational and safety information, your organization’s standard operating procedures, and local regulations.

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