781235 - Sumner QWIKP Carbon Steel Flange Alignment Pins (Pair)

Precision Flange Alignment for Professional Fabrication

In the demanding world of industrial pipe fabrication, precision and efficiency are paramount. The Sumner Manufacturing Company Qwik Pins® (Model QWIKP) represent a premier solution for the accurate alignment of carbon steel pipe flanges. Designed to address the common challenges faced by pipe fitters, these pins provide a robust and reliable method for "two-holing" flanges without the need for cumbersome tools or makeshift wedges. The Qwik Pin system is engineered to automatically center itself within the bolt hole, ensuring that the flange is perfectly oriented relative to the pipe axis, which is critical for meeting strict welding codes and tolerances.

The structural integrity of the Qwik Pins is derived from their hardened carbon steel construction. Unlike standard mild steel pins that may deform under the weight of heavy flanges or the stress of prying, Sumner's Qwik Pins are built to withstand significant mechanical loads. This durability ensures a long service life, making them a cost-effective addition to any professional tool crib. The pins are designed to accommodate a versatile range of bolt hole sizes, specifically from 5/8-inch to 1-5/8-inch (16 mm to 42 mm), covering a broad spectrum of standard ANSI flange classes and bore sizes utilized in commercial and industrial piping systems.

A standout engineering feature of the Model QWIKP is the utilization of Acme threads. Unlike standard V-threads, Acme threads are trapezoidal in profile, designed specifically for power transmission and heavy load bearing. This allows the operator to generate substantial clamping force simply by rotating the pin by hand. The coarse nature of the thread also makes it resistant to damage from dirt, spatter, and debris common in welding environments. By eliminating the need for wrenches or hammers to set the pins, Sumner has significantly reduced the setup time required for each joint, allowing fabricators to move from fit-up to tack welding with unprecedented speed.

These pins are supplied as a pair, providing the necessary two points of reference required to level a flange effectively. Whether working on bench fabrication or field installation, the Sumner Qwik Pins offer a level of reliability and precision that supports high-quality welding outcomes.