Snap It® Sr. Engineered Tube Plugs
Plug leaking heat exchanger tubes in minutes, without welding and without pulling the rear head. Rated to 7,000 PSID with tested blowout pressures over 28,000 PSID, and up to 80% faster to install than conventional tapered plugs. ASME PCC-2 compliant. Find your part number ›
Get a Quote or Order
Send us these details and we'll respond the same business day.
- Tube ID (we strongly suggest you mic each tube)
- Material (carbon steel, 316 SS, brass, Inconel, etc.)
- Maximum temperature and pressure
- Tube-to-tubesheet joint (rolled, welded, etc.)
- Brush kits, pull rod, channel head pull rod, or plug positioner
- Quantity and date needed
| Specification | Details |
|---|---|
| Application | High-pressure heat exchanger service |
| Pressure Rating | Up to 7,000 PSID (by tube ID, see below) |
| Blowout Pressure | Over 28,000 PSID (independent testing) |
| Seal | Helium leak-tight to 1 × 10-9 cc/sec |
| Contact Points | 5 |
| Tube IDs | 0.401" – 1.180" (in 0.020" steps) |
| ASTM Certified Materials | Stainless • Carbon Steel • Brass • Inconel • Monel • Titanium (20+ materials) |
| Material Origin | Milled in the USA |
| Installation | Hydraulic ram (complete Snap It® tools kit available) |
| Standard Kit | 10 plugs, 1 brush, and 1 go/no-go gauge (items sold individually on request) |
| Tube ID Range (in) | Pressure Rating |
|---|---|
| 0.400 – 0.680 | 7,000 PSID |
| 0.700 – 0.960 | 4,500 PSID |
| 0.980 – 2.000 | 2,000 PSID |
Find Your Snap It® Sr. Part Number
Choose your tube ID and material to get your part number and accessories, or browse the full plug specs chart.
Why Snap It® Sr.?
Snap It® Sr. plugs install with controlled hydraulic force, so every plug seals the same way, every time, without heat, sparks, or damage to the tubesheet.
- Withstands blowout pressures over 28,000 PSID.
- Eliminates welding, reducing the risk of igniting hazardous chemicals or fumes.
- Installs up to 80% faster than conventional tapered plugs, in just minutes.
- Enables through-the-tube plugging without removing the rear head cover.
- Strong seal up to 7,000 PSID using a hydraulic ram, with no welding.
- Reduces maintenance labor costs and unit downtime.
- Higher initial cost offset by labor savings and reduced downtime.
- Prevents damage to tube sheets and ligaments, minimizing costly maintenance.
- Reduces reloading times in tubular reactors.
- Fits multiple tube sizes in 20+ materials.
- Compatible with existing installation and removal systems.
- Affordable tooling rental or purchase options.
- Guaranteed leak-free helium seal to 1 × 10-9 cc/sec.
Inside the Snap It® Sr.
Puncture the Tube First
Puncture tubes before installation with the One-Rev Internal Tube Cutter, a fast, precise hand tool that works with the Snap It® system. A punctured tube can't build pressure behind the plug.
Snap It® Sr. vs. Jr.
What Is ASME PCC-2?
ASME PCC-2 (Post Construction Committee 2) gives recognized procedures for repairing pressure equipment, including vessels, piping, and related components, after it's in service. It covers the design, fabrication, inspection, and testing of both temporary and permanent repairs, and is used across petrochemical, oil, gas, power generation, and manufacturing.
Snap It® Sr. plugs are ASME PCC-2 compliant.
Snap It® Sr. FAQ
What pressure do Snap It® Sr. tube plugs hold?
Up to 7,000 PSID, depending on tube ID: 7,000 PSID for 0.400" to 0.680", 4,500 PSID for 0.700" to 0.960", and 2,000 PSID for 0.980" and up. In independent testing, blowout pressures have exceeded 28,000 PSID.
What materials are available?
Any standard or exotic metal. The most requested include 70/30 CuNi, 90/10 CuNi, brass, carbon steel, chrome/moly, Hastelloy, Inconel, Monel, Nickel 200, 304 and 316 stainless, titanium, and zirconium.
What are the minimum and maximum order quantities?
Snap It® plugs are sold in sleeves of 10, with no maximum. A standard Sr. kit includes 10 plugs, 1 brush, and 1 go/no-go gauge. We can produce 5,000 plugs a day and keep more than 500,000 tube plugs in stock.
Why should I mic each tube?
Each Sr. plug covers a narrow 0.020" ID range. Measuring every tube makes sure you order the right plug for each one.
What makes Snap It® plugs so safe?
No welding, so there's no risk of a spark igniting fumes or chemicals. Properly installed, Snap It® Sr. plugs have been independently verified to hold past 28,000 PSID. Never stand in front of an installed tube plug of any type.
What's the difference between Snap It® Sr. and Jr.?
Sr. plugs have five points of contact for a much stronger seal, up to 7,000 PSID. Jr. plugs have three, rated to 1,000 PSID, with more flexibility to fit different tube sizes.
Where can Snap It® plugs be installed?
Only within the rolled section of the tubesheet. If your tubes aren't rolled, call us before proceeding.
Why USA Industries?
40+ years of manufacturing excellence and innovation
Fastest Turnaround
Same-day shipping available on stock items. Custom orders in days, not weeks.
Manufactured In-House
U.S. produced steel, PMI verified, QC certified.
ISO 9001:2015 Certified
Quality-driven manufacturing process ensures excellence.
Engineering Innovation
Precision-Engineered Industrial Solutions — Delivered Fast!
100% USA Materials
All raw materials sourced from American mills.