Foreman Isolation Plug (Night Cap)
A single-bolt plug that temporarily seals pipe ends during maintenance or construction, keeping dirt, water, and debris out of the line. Tighten the center bolt and the neoprene gasket expands against the pipe ID for a tight, even seal.
Isolation only. Not rated to hold back pressure.
Foreman SpecsKeep the Line Clean Between Jobs
Also known as:
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Send us these details and we'll respond the same business day.
- Size (4" to 42")
- Pipe schedule
- Vent-through, if needed
- Quantity needed
- Rental or purchase
- Date needed
Sizes & Dimensions
- Lightweight and durable: neoprene seals with cast aluminum bodies.
- One-person installation in most sizes. No heavy equipment or crew.
- Optional upstream venting to release accumulated substances.
- Fast turnaround: in-stock sizes ship within 24 hours.
Step Up to GripSafe® ST
The Foreman plug is for isolation only. For back pressure, the GripSafe® ST family of high pressure isolation and test plugs is the recommended choice.
Save Money. Rent.
Lower upfront cost and no storage between jobs.
Foreman Isolation Plug FAQ
What sizes are available?
Line sizes 4" to 42".
What is the Foreman plug made of?
Rugged, lightweight cast aluminum.
What is the seal made of?
Neoprene.
How much heat can the seals take?
The seals are stable up to 135°C / 275°F.
Will the Foreman plug hold back pressure?
No. Use it for isolation only. For back pressure, see the GripSafe® ST plugs.
Does the Foreman plug have vent-through capabilities?
Yes. We'll customize your plugs with vent-through on request.