Smith-Blair · Service Saddle
Style 325 Bronze Service Saddle
Cast Red Brass Body, Extra-Wide 304 Stainless Strap — OD-Range Bodies for Rigid Pipe, 4-12 in
150 PSI Max Working Pressure
-20°F to +180°F Temperature
Nitrile (Buna-N) Gasket
Cast Red Brass (Bronze) Body
3.5 in Wide 304 Stainless Strap
304 Stainless Studs, Coated Nuts
3/4 to 2 in CC and NPT Taps
NSF/ANSI 61
4.50-13.20 in Pipe OD
7-12 lb Weight
Description
The Smith-Blair Style 325 is a bronze service saddle for tapping branch connections on water mains. The cast red brass body resists corrosion and wraps the pipe, held by a single 3.5 in wide Type 304 stainless steel strap on four studs for a wide, stable stance.
This listing carries the rigid-pipe bodies: each covers an OD range that spans steel and ductile iron OD at the same nominal size (4.50-4.80 in at 4 in up to 12.75-13.20 in at 12 in), with 3/4 to 2 in NPT or CC outlets. It also serves for air/vacuum valves, drain valves and other service equipment.
Application: service taps of 3/4 to 2 in on 4-12 in steel, ductile iron and cast iron pipe.
Key Features
- Working pressure up to 150 PSI, depending on size and application
- Cast red brass body for corrosion resistance
- One body covers both steel and ductile iron OD at each nominal size
- Single 3.5 in wide 304 stainless strap on four studs for a wide stance
- Meets applicable AWWA C800; certified to NSF/ANSI 61
What Ships and What It Needs to Run
Included: the bronze body with Nitrile gasket, the 3.5 in 304 stainless strap with welded studs, coated stainless nuts and stainless washers.
California Proposition 65: Smith-Blair states this product can expose you to chemicals including lead and lead compounds; see www.P65Warnings.ca.gov.
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. depending on size and application. Smith-Blair notes the allowable pressure depends on pipe size, type of pipe, service conditions and installation workmanship.
Materials Specifications
| Body |
Cast red brass (bronze) 85-5-5-5 per ASTM B584 or B62; open ears one side, canted ears the other, wraparound design, wide skirt and heavy tapping boss |
| Gasket |
Nitrile (Buna-N) per ASTM D2000, NSF 61; resists water, oil, natural gas, acids, alkalies and most aliphatic hydrocarbons; -20°F to +180°F |
| Strap |
Type 304 (18-8) stainless steel per ASTM A240, 14 GA x 3.50 in, single strap |
| Studs |
Type 304 stainless steel per ASTM A276, 5/8-11 UNC x 6.00 in, rolled threads, welded to the strap (four studs) |
| Nuts |
Type 304 stainless steel GR 8 per ASTM A194, 5/8-11 UNC heavy hex, fluoropolymer coated to prevent galling |
| Washers |
Type 304 stainless steel per ASTM A240, 5/8 in Type A plain |
| Welds |
GMAW by qualified welders |
Materials subject to change by the manufacturer.
Pipe Applications
Rigid pipe: steel, ductile iron and cast iron within the body's OD range; the spec adds stainless steel. For PVC, the Style 325 OD-specific bodies are listed separately.
Sizes
| Nominal size - pipe OD |
NPT taps |
CC taps |
| 4 in - 4.50-4.80 in |
3/4, 1, 1-1/4, 1-1/2, 2 in |
3/4, 1, 1-1/4, 1-1/2, 2 in |
| 6 in - 6.63-6.90 in |
3/4, 1, 1-1/4, 1-1/2, 2 in |
3/4, 1, 1-1/4, 1-1/2, 2 in |
| 8 in - 8.63-9.05 in |
3/4, 1, 1-1/4, 1-1/2, 2 in |
3/4, 1, 1-1/4, 1-1/2, 2 in |
| 10 in - 10.75-11.10 in |
3/4, 1, 1-1/4, 1-1/2, 2 in |
3/4, 1, 1-1/4, 1-1/2, 2 in |
| 12 in - 12.75-13.20 in |
3/4, 1, 1-1/4, 1-1/2, 2 in |
3/4, 1, 1-1/4, 1-1/2, 2 in |
Choose the size and pipe OD in the first option and the tap in the second; the part number shows in the last option.
Installation Notes
- Confirm the saddle type, tap size and pipe OD range match the job, then clean the pipe where the gasket will seat, removing scale, dirt and debris.
- Check the gasket is seated in the body; lubricate the pipe and gasket with a soap-and-water solution (anti-freeze may be required) that meets the water and pipe supplier's requirements.
- Mount the body as close to the final tap position as possible and check its location before tightening: moving or rolling the body on the pipe can damage the gasket.
- Tighten the 5/8 in nuts progressively and evenly to the torque in the instructions, keeping the stud lengths on both sides equal; do not over-torque. The saddle seals the tap and is not designed to give structural rigidity to connections or equipment, so support those separately.
- Make the connection with a pipe-thread compound that both lubricates and seals (no tape products), without cross-threading or rocking the saddle body.
- Pressure-test the saddle for leaks before making the tap.
From Smith-Blair Installation Instructions TI-040 (Rev 09/02/21), 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.
316 stainless strap with 316 nuts, Viton, EPDM or other gaskets, BSP threads, 1/2 and 5/8 in taps and anode connectors are built to order — email sales@watermainsupply.com with the pipe OD, pipe material and tap size.
