G-650 Vacuum Joint Testing Gun uses air pressure to generate a vacuum around the tube-to-tubesheet joint to pinpoint leaking connections. Just insert the test gun into the tube end and press the air control valve to fill the cylinder with air. This expands a seal inside the tube, pulling a second seal firmly against the tubesheet surrounding the tube end. Next press the vacuum control valve to divert air through a venturi, creating a vacuum around the tube joint area. Any reduction in vacuum shown on the integral gauge indicates a faulty tube joint.
Interchangeable manifolds: allows the G-650 to test tube OD’s from 3/8 “ to 1-1/4” (9.52 to 31.75 mm). The G-650A is used for tube OD’s from 1-1/2” to 2-1/2” (38.1 to 63.5 mm).
Light weight: weighs less than 2.7 lbs (1.2 kg), when equipped with a 3/4” manifold.
Uses standard plant air supplies from 40 to 125 psi. Standard seal material: Neoprene, Viton® optional.
Quality Assurance System: Meets requirements of ANSI N45.2, 10CFR50 Appendix B, 10CFR21, and is certified to ISO-9001