High Temperature Silicone Welding Back Purging Plugs Complete Kit 1.25"-4" (Set of 12)

Fitment Guide - (A) 1.25" Sch 5/10/40 Pipe, & 1.5" Tube / (B) 1.5" Sch 5/10/40 Pipe & 1.75" Tube / (C) 2" Sch 10/40/80 Pipe & 2"-2.25" Tube / (D) 2" Sch 5/10 Pipe & 2.5" Tube / (E) 2.5" Sch 5/10 Pipe & 2.75"-3" Tube (WILL FIT 3" tube which has a smaller ID of 2.9xx). For use on a 3" Inner Diameter such as flanges, flex sections, ect... use our new 3"-3.25" Silicone Plugs, which also fit 3" tube (Available for purchase separately on Amazon) (F) 3.5"-4" Tube & 3.5" Sch 5/10/40/80 Pipe

• Complete Kit Covering All Most Common Sizes From 1.25" - 4" (Set of 12 Plugs).
• Easy Installation and Removal. Fitting sleeves can simply be pushed out and transferred to another plug. Since the sleeves are 1/8" NPT, you have the ability to use different fittings, and increase or decrease the feed/vent sizes. The internal diffuser fitting allows for a smooth, even, non turbulent argon flow into the tube/pipe. This allows for argon to fill the tube/pipe quicker, saving you on gas and time. Internal diffusers are a must when back purging, especially on larger diameter tube/pipe.
• Fittings Included, (1) 1/8" NPT Barb Fitting, (2) 1/8" NPT Sleeves, (1) 1/8" NPT Internal Diffuser Fitting, and (1) 1/8" NPT Vent Fitting, Pre-assembled and ready for use.
• Temperature Rating 600 Degrees F
• Plug Fitment - Colors May Vary (A) 1.25" Sch 5/10/40 Pipe, & 1.5" Tube / (B) 1.5" Sch 5/10/40 Pipe & 1.75" Tube / (C) 2" Sch 10/40/80 Pipe & 2"-2.25" Tube / (D) 2" Sch 5/10 Pipe & 2.5" Tube / (E) 2.5" Sch 5/10 Pipe & 2.75"-3" Tube ( WILL FIT 3" tube which has a smaller ID of 2.9xx". For use on a 3" Inner Diameter such as flanges, flex sections, ect... use our new 3"-3.25" Silicone Plugs, which also fit 3" tube (Available for purchase separately on Amazon) / (F) 3.5"-4" Tube & 3.5" Sch 5/10/40/80 Pipe