Smith-Blair · Collar Leak Clamp
Style 269 Full Circle Collar Leak Clamp
All Stainless Steel, Single Band
150 PSI Max Working Pressure
-20°F to +180°F Temperature
Nitrile (Buna-N) Gasket
All 304 Stainless Steel
Fabricated Stainless Lugs
NSF/ANSI 61 and 372
2.38-12.75 in Pipe OD
5-11 lb Weight
Description
The Smith-Blair Style 269 is the all-stainless Full Circle collar leak clamp for leaking solvent-weld joints on PVC and most threaded steel couplings. Its step gasket seals against the face of the solvent-weld bell to stop the leak; a keeper bar pulls the clamp around the pipe and closes it during installation.
Application: leaking solvent-weld joints on PVC and most threaded steel couplings.
Key Features
- Working pressure 150 PSI
- Step gasket seals against the face of the solvent-weld bell
- All 304 stainless construction, designed for hot soils
- 7.5 in wide, 2 through 12 in nominal
- Certified to NSF/ANSI 61 and NSF/ANSI 372
What Ships and What It Needs to Run
Included: the clamp with its 360° Nitrile gasket, fabricated lugs, keeper bar, studs, nuts and washers.
Genuine Smith-Blair equipment, factory-new in original packaging — sold and supported by Watermain Supply, an independent industrial supplier.
12-Month Smith-Blair Warranty
Smith-Blair warrants its products to be free of defects in materials and workmanship for one year from the date of shipment by Smith-Blair. Dated proof of purchase, such as a bill of sale, is required to establish eligibility. Smith-Blair will repair or, at its option, replace a defective product; the product is returned to the factory or warehouse Smith-Blair designates.
Working Pressure
Up to 150 PSI. Smith-Blair rates the allowable working pressure of a repair clamp to fall as pipe diameter rises; for a particular installation it is set by pipe size and type, the type and extent of the damage, service conditions and installation workmanship.
Materials Specifications
| Band |
Type 304 stainless steel |
| Lugs |
Type 304 stainless steel, fabricated |
| Keeper bar |
Type 304 stainless steel |
| Gasket |
Nitrile (Buna-N), resists water, acids, alkalies, most aliphatic hydrocarbons and other chemicals |
| Bridge plate |
Type 304 stainless steel, recessed flush and bonded to the gasket |
| Stud bolts |
Type 304 stainless steel, epoxy coated |
| Nuts |
Fluoropolymer coated to prevent galling |
| Temperature range |
-20°F to +180°F |
Materials subject to change by the manufacturer.
Pipe Applications
PVC and steel. For other pipe materials, Smith-Blair engineering confirms suitability.
Sizes
| Pipe size and OD |
Widths |
| 2 in - 2.38 in |
7.5 in |
| 2-1/2 in - 2.88 in |
7.5 in |
| 3 in - 3.50 in |
7.5 in |
| 3-1/2 in - 4.00 in |
7.5 in |
| 4 in - 4.50 in |
7.5 in |
| 5 in - 5.56 in |
7.5 in |
| 6 in - 6.63 in |
7.5 in |
| 8 in - 8.63 in |
7.5 in |
| 10 in - 10.75 in |
7.5 in |
| 12 in - 12.75 in |
7.5 in |
Choose the pipe OD in the first row above; the part number shows in the second row.
Bolt Numbers
| Band width |
Studs |
| 7.5 in |
2 |
Studs 5/8 x 7 in.
Installation Notes
- Clean the pipe where the clamp will sit, removing scale, dirt and debris that could spoil the gasket seal.
- Lubricate the pipe and gasket with a soap-and-water solution that meets the water and pipe supplier’s requirements.
- Where the pipe ends gap 1 in or more, bridge the gap with a short section of pipe or a thin strip of sheet metal to support the gasket.
- Where 40% or more of the circumference is broken away, cover the opening with sheet metal and use a clamp that extends 3 in past it on both sides.
- Tighten from the center nut outward, keeping the clamp centered on the break; finish with a calibrated torque wrench to the torque in the instructions.
- Anchor the pipe: the clamp seals around it, and Smith-Blair requires proper anchoring to restrain pipe movement and prevent pull-out.
From Smith-Blair Installation Instructions TI-008 (Rev 08/26/21), in the Data Sheet tab.
Before You OrderAll Smith-Blair products are Made to Order and Non-Returnable.
Items typically shipped in 5 - 10 business days.
Odd pipe ODs, other widths and other materials are built to order — email sales@watermainsupply.com with the pipe OD and material.
