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Smith Blair
Smith Blair
Smith Blair
Smith Blair
Smith Blair
Smith Blair
Smith Blair
Smith Blair
Smith Blair
Smith Blair
Smith Blair
Smith Blair
The full Smith-Blair line for water, wastewater and industrial pipe: repair clamps, couplings, tapping sleeves, service saddles, flanged coupling adapters, joint restraints, end caps, dismantling and expansion joints, and OMNI replacement parts. Every size listed with its Smith-Blair part number.

Smith-Blair makes the fittings water crews reach for when a main breaks, a new service goes in, a valve gets replaced or a line is extended: bolted clamps and couplings that seal on the outside of the pipe, tapping sleeves and saddles that add connections without a shutdown, and restraints that hold the pipe without concrete. Most products work on steel, ductile and cast iron, PVC and AC, and many on HDPE.
Start with the job below, or go straight to a product family. Every family page explains selection by pipe type and size, and every listing shows the Smith-Blair part number and datasheet. Send the pipe material, measured OD and pressure and we confirm the part number the same day: call 1-888.510.4036 or email sales@watermainsupply.com. Genuine Smith-Blair equipment, factory-new in original packaging — sold and supported by Watermain Supply, an independent industrial supplier.
Find the right Smith-Blair product family by the job in front of you.
| Job | Go to |
|---|---|
| Stop a leak on a live main | Repair clamps |
| Fix a leaking bell or collar joint | Bell joint 274, collar leak 229 and 269 |
| Repair a leak and add a service | Tapped repair clamps 238, 239, 264, 265 |
| Join or repair two pipe ends | Couplings |
| Join two different pipe ODs or sizes | Transition 413, reducing 415, OMNI 441 |
| Connect pipe to a valve, meter or pump | Flanged coupling adapters |
| Add a branch to a live main | Tapping sleeves |
| Add a water service | Service saddles |
| Hold a bend, tee, valve or dead end | Joint restraint |
| Cap a main or test a line | End caps and line caps |
| Remove a valve or pump later | Dismantling joints |
| Absorb thermal movement | Expansion joints 611, 612 |
| Rebuild an OMNI coupling, cap or FCA | Replacement parts |
Eight families plus replacement parts. Each family page has selection guides, comparison tables and FAQs.

Full circle · tapped · bell joint · collar · RediClamp
Stop a leak on a live main without cutting pipe. Full circle clamps (226, 227, 228, 256, 261–263), tapped clamps with an outlet (238, 239, 264, 265), RediClamps for 1/2–12 in, wide range 281, collar leak 229/269 and bell joint 274.

Steel · OMNI cast · Quantum · Top Bolt · restrained
Join, repair, transition and reduce plain-end pipe with no welding or threading: 411 steel, 413 transition, 415 reducing, 441/442 OMNI, 461/462 Quantum, 421/422 Top Bolt, plus restrained PipeLock, EZW and RazorLock.

Carbon steel · stainless body · all stainless
Make a new branch on a live main without shutting it down. Carbon steel 622, stainless body 662 and 664, all-stainless 663, 665 and the 663WR wide range, with flanged or MJ outlets.

Bale · strap · all-stainless band · specialty
Tap a new water service into a live main. Bale saddles for metal pipe, strap and stainless band saddles for PVC and HDPE, plus bronze, wide range, large tap, repair, concrete cylinder and large diameter styles.

Standard · restrained · reducing
Connect plain-end pipe to a flanged valve, meter or pump with no welded spool. Standard 912, 913 and 921, reducing 914, and restrained Flange-Lock 911, 920, 923 and EZW-F.

PipeLock · EZW · Flange-Lock · tie rods
Hold thrust at bends, tees, reducers, valves and dead ends without concrete blocks. Restrained couplings, flange adapters and line caps, plus lugs and tie rods for flanged piping.

Cast OMNI · steel · restrained
Seal a plain pipe end without welding: 482 OMNI cast cap, 481 steel cap to 20 in, and the EZW-C line cap that seals and restrains in one unit.

971 · 972 · 973 · 975 · 611 · 612
Dismantling joints install flanged valves, pumps and meters at the real field gap and let them come out later. Expansion joints take up thermal movement between anchors.
Where each family fits. Open the family page for the exact styles and limits.
| Family | Ductile iron | Cast iron | Steel | PVC | AC | HDPE |
|---|---|---|---|---|---|---|
| Repair clamps | Yes | Yes | Yes | Yes | Yes | Check style |
| Couplings | Yes | Yes | Yes | Yes | Yes | Stiffener |
| Tapping sleeves | Yes | Yes | Yes | DR 25+ | Yes | Stainless, SDR 17+ |
| Service saddles | Yes | Yes | Yes | Strap or band | Yes | 317, 372, 377, 397 |
| Flanged coupling adapters | Yes | Yes | Yes | 920, EZW-F | Yes | EZW-F, stiffener |
| Joint restraint | Yes | 431 | Yes | Red wedges, SDR 26+ | Ask | EZW, 431, stiffener |
| End caps | Yes | Yes | Yes | Yes | Yes | Stiffener |
PVC wall, HDPE DR and stiffener rules vary by style: each family page lists them.
Five facts get the right part number the first time.
| Fact | Why it matters |
|---|---|
| Measured pipe OD | Gaskets seal a set OD range. The same nominal size has different ODs on steel, ductile iron, PVC, cast iron and AC. |
| Pipe material and class | Decides the style: bale or strap saddle, PVC wedges or iron wedges, stiffeners for PE. |
| Working and test pressure | Ratings run from 50 PSI on a single-band clamp to 350 PSI on PipeLock 471. |
| Size of the repair, tap or outlet | Clamp width, saddle tap and thread (CC or NPT), tapping sleeve outlet (flanged or MJ). |
| Soil and service | Alloy, 304 or 316 stainless hardware; epoxy or stainless bodies. |
What Smith-Blair products are made of, and why it matters in the ground.
Fusion-bonded epoxy on steel and ductile iron bodies, sleeves and followers, to AWWA C213 where stated, protects against soil and water corrosion.
Type 304 stainless bands, straps, bodies and bolts for wet and aggressive soil; 316 stainless bolts on selected couplings for wastewater and chlorides.
Nitrile (Buna-N) and SBR gasket compounds, certified to NSF/ANSI 61 on most products for drinking water contact.
Built to applicable AWWA standards by family: C219 couplings, C223 tapping sleeves, C230 clamps, C800 saddle outlets, C207 flanges.
Smith-Blair is a waterworks brand of Xylem. It makes repair clamps, couplings, tapping sleeves, service saddles, flanged coupling adapters, joint restraints, end caps, and dismantling and expansion joints for water, wastewater and industrial pipe.
Most Smith-Blair waterworks products are certified to NSF/ANSI 61 and 372, and gaskets are Nitrile (Buna-N) or SBR compounds for potable water. Each listing shows its certification.
By the measured outside diameter of the pipe, not its nominal size. A 6 in main is 6.63 in on steel and IPS PVC and 6.90 in on ductile iron and C900 PVC. Send the OD, pipe material and pressure and we confirm the part number.
The first three digits are the style, for example 226 for a full circle clamp or 622 for a tapping sleeve. The middle digits code the pipe OD and the size, width or tap, and the last three digits code the build or hardware. Every listing shows the exact part number on each variant.
Coated low-alloy bolts suit normal soil. 304 stainless pays off in wet or aggressive soil. 316 stainless is for wastewater, chlorides and coastal ground. Many styles list stainless builds.
Most products are made to order and typically ship in 5 to 10 business days. Selected tapping sleeves ship the same or next business day through Smith-Blair Quick Ship.
No. Smith-Blair products are made to order and non-returnable, which is why we confirm OD, pipe material and build before an order ships.
One year from the date of shipment by Smith-Blair, against defects in materials and workmanship, under Smith-Blair published warranty.
Yes. Every listing has the Smith-Blair datasheet, spec sheet or installation instructions in its Data Sheet tab, and we can send a factory submittal on request.
Yes. Dresser couplings, clamps, saddles and tapping sleeves are in their own collections, and the Smith-Blair coupling collection compares the two brands head to head.
Send the job, the pipe material and measured OD, and the pressure. We reply the same day with the Smith-Blair style, part number, price and ship date.