High-pressure pin plug

High-pressure pin plug
Topic LCI-USG-0031, Last Updated 11/08/2024

This fitting type is used to plug an unused port or, in some instances, to pressure-check the system.

Tighten the fitting finger-tight, plus approximately a 1/6-turn using a wrench.

Figure 1: High-pressure pin plug, first use or reinstallation
Figure 2: High-pressure pin plug tightening, first use or reinstallation

Need Help? Connect with a Waters expert. 


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.

Back To Top Back To Top