Serrated Gripper Segment – Stamped Stainless Steel Anchor for Pipe Test Plug | Blind Rivet Mounted, Wear-Resistant

Product Content:

Qimao Metal Manufacturer Serrated Gripper Segment – Stamped Stainless Steel Anchor for Pipe Test Plug | Blind Rivet Mounted, Wear-Resistant is the part that actually holds the test plug in place. Smooth grippers slip once pressure climbs; serrated teeth bite in and keep their hold. We stamp it from stainless steel sheet, so the tooth profile stays consistent from part to part — no hand grinding, no variation between batches. The L-shaped body sits flat against the pipe wall, and the teeth are angled to resist pull-out in one direction while allowing the plug to seat. It mounts with blind rivets, so you don’t need access to the back side of the plug body. Wear-resistant enough for repeated pressure cycles.

Product Specification:

Product Details:

Serrated Gripper Segment – Stamped Stainless Steel Anchor for Pipe Test Plug | Blind Rivet Mounted, Wear-Resistant material is 304,316 or 201 stainless steel, depending on how corrosive the environment is. Thickness is typically 1mm to 3mm, chosen by the pressure rating and pipe diameter it has to hold. Tooth pitch and depth are set by the stamping die — we can adjust both if your grip requirement is different from standard. The L-shape is formed in the same stamping operation, so there’s no weld at the bend. Rivet holes are punched to match standard blind rivet sizes, usually 4mm or 4.8mm. Edges are deburred on both sides so the segment seats flat and the rivet heads sit clean. Surface is passivated per ASTM A967.

Main Feature:

• The product Serrated Gripper Segment – Stamped Stainless Steel Anchor for Pipe Test Plug | Blind Rivet Mounted, Wear-Resistant stamped from 304 or 316 stainless steel sheet, 1.5mm–3mm thick — grade chosen by environment, thickness matched to pressure rating and pipe diameter.

• Serrated tooth profile bites into pipe walls — teeth dig in under load instead of skating across the surface. Works on smooth or slightly corroded pipe where a flat gripper would slip.

• L-shaped body formed in one stamping operation — no weld at the bend, so the grain flow stays continuous through the corner and holds up under repeated load.

• Tooth pitch and depth adjustable through die change — standard profile covers most test plug applications; custom pitch or tooth angle available without full retooling.

• Blind rivet holes punched to 4mm or 4.8mm — punched in the same operation as the teeth, so hole position stays consistent relative to the tooth profile.

• Deburred both sides and passivated per ASTM A967 — flat seating for clean rivet heads, and corrosion resistance at cut edges and punched holes.

Application:

• Pipe test plugs for pressure testing and pipeline isolation — the products Serrated Gripper Segment – Stamped Stainless Steel Anchor for Pipe Test Plug | Blind Rivet Mounted, Wear-Resistant’s segment holds the plug in place while the line is pressurized. Serrated teeth maintain grip even as pressure fluctuates, where smooth grippers tend to slip once the load climbs.

• Temporary blocking of drains and sewer lines during maintenance — used where a plug has to stay put in a wet, dirty pipe. The teeth bite through light scale and debris instead of sliding over it.

• Pipeline pigging and inspection tools needing a gripping anchor — provides a low-profile anchor point that doesn’t interfere with pig travel or tool movement inside the line.

• Any application where a low-profile anchor must hold against a pipe wall under load — the blind rivet mounting keeps the outside profile flush, so it works in tight spaces where a bolted or clamped anchor wouldn’t fit.

Factory Advantage:

As product Serrated Gripper Segment – Stamped Stainless Steel Anchor for Pipe Test Plug | Blind Rivet Mounted, Wear-Resistant we’ve been stamping stainless steel parts for over ten years, and gripper segments are one of our regular lines. The hard part isn’t the stamping itself — it’s keeping the tooth profile consistent across the die life. A worn die changes the bite angle, and that shows up as slipping under pressure. So we track die wear and replace before the profile drifts. We also deburr both sides in-house, because a burr on the seating face will make the segment rock and the rivet will loosen. We take OEM orders from sample to production volume. If you have a sample or a drawing, we can match it.