Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

SMITH-BLAIR Double-Strap Service Saddle, Ductile Iron, 3 in NPT Outlet - Double-Strap Service Saddles
SMITH-BLAIRDouble-Strap Service Saddles

SMITH-BLAIR Double-Strap Service Saddle, Ductile Iron, 3 in NPT Outlet

The SMITH-BLAIR Double-Strap Service Saddle (SKU 3G-OTH-708347) is a ductile-iron saddle clamp for 11 1/4 in – 12 1/8 in outside diameter pipe, featuring a 3 in NPT outlet and two stainless-steel straps. It includes…

SKU 3G-OTH-708347

Brand
SMITH-BLAIR
Item
Double-Strap Service Saddle, Ductile Iron, 3 in NPT Outlet
Category
Double-Strap Service Saddles
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SMITH-BLAIR
Manufacturer Part Number
31700121017000
Type
Ductile Iron
Strap
2
NPT Outlet
3 in

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

SMITH-BLAIR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SMITH-BLAIR Double-Strap Service Saddle (SKU 3G-OTH-708347) is a ductile-iron saddle clamp for 11 1/4 in – 12 1/8 in outside diameter pipe, featuring a 3 in NPT outlet and two stainless-steel straps. It includes stainless-steel hardware and an NBR gasket, rated for 300 psi (MPN 31700121017000).

Frequently Asked Questions

What is a SMITH-BLAIR double-strap service saddle used for?

A SMITH-BLAIR double-strap service saddle is used to create a branch connection on large-diameter water or wastewater mains. It clamps onto pipes with an 11 1/4 in – 12 1/8 in outside diameter and provides a 3 in NPT outlet for tapping valves or service lines.

What are the specifications of the SMITH-BLAIR saddle clamp 31700121017000?

The SMITH-BLAIR saddle clamp 31700121017000 is a ductile-iron double-strap model for 11 1/4 in – 12 1/8 in outside diameter pipe. It has a 3 in NPT outlet, stainless-steel straps and hardware, an NBR gasket, and a pressure rating of 300 psi.

Where to buy SMITH-BLAIR saddle clamps worldwide?

3G Electric supplies SMITH-BLAIR saddle clamps worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on the double-strap service saddle with 3 in NPT outlet.

How to install a SMITH-BLAIR double-strap service saddle?

To install a SMITH-BLAIR double-strap service saddle, clean the pipe surface, position the NBR gasket over the tap location, and place the ductile-iron saddle body. Tighten the two stainless-steel straps evenly to the manufacturer’s torque specification, ensuring a leak-free seal at 300 psi.

SMITH-BLAIR Products

3G Electric supplies SMITH-BLAIR double-strap service saddles. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from SMITH-BLAIR

View all SMITH-BLAIR parts
Double-strap service saddle for 10 in – 12 in pipe (10 5/8 in – 12 1/8 in outside diameter). Features a 2 in CC outlet, stainless steel body and straps, NBR gasket, and 300 psi pressure rating. Used to secure branch connections on water or gas mains
SMITH-BLAIR
Double-strap service saddle for 10 in – 12 in pipe (10 5/8 in – 12 1/8 in outside diameter). Features a 2 in CC outlet, stainless steel body and straps, NBR gasket, and 300 psi pressure rating. Used to secure branch connections on water or gas mains
Ductile iron double-strap service saddle with two stainless-steel straps and a 3/4 in NPT outlet. Includes stainless-steel hardware and NBR gasket. Rated for 300 psi. Used to create branch connections on water or wastewater pipelines
SMITH-BLAIR
Ductile iron double-strap service saddle with two stainless-steel straps and a 3/4 in NPT outlet. Includes stainless-steel hardware and NBR gasket. Rated for 300 psi. Used to create branch connections on water or wastewater pipelines
Double-strap service saddle for 6 in – 8 in pipe with 7 3/4 in – 8 3/4 in outside diameter. Features a 2 in CC outlet, stainless steel straps and hardware, and an NBR gasket. Rated for 300 psi. Used for tapping into water or gas mains to create branch connections
SMITH-BLAIR
Double-strap service saddle for 6 in – 8 in pipe with 7 3/4 in – 8 3/4 in outside diameter. Features a 2 in CC outlet, stainless steel straps and hardware, and an NBR gasket. Rated for 300 psi. Used for tapping into water or gas mains to create branch connections
Double-strap service saddle for creating a threaded branch connection on water or gas mains. Fits pipe with outside diameter range 4 3/4 in – 5 1/8 in. Features two stainless steel straps, stainless steel body, NBR gasket, and 3/4 in NPT outlet. Rated for 300 psi
SMITH-BLAIR
Double-strap service saddle for creating a threaded branch connection on water or gas mains. Fits pipe with outside diameter range 4 3/4 in – 5 1/8 in. Features two stainless steel straps, stainless steel body, NBR gasket, and 3/4 in NPT outlet. Rated for 300 psi
Double-strap service saddle for pipes with 4 3/4 in – 5 1/8 in outside diameter. Features two stainless steel straps, a 1 in CC outlet, and an NBR gasket. Rated for 300 psi. Used for branch connections in water, gas, or industrial piping systems
SMITH-BLAIR
Double-strap service saddle for pipes with 4 3/4 in – 5 1/8 in outside diameter. Features two stainless steel straps, a 1 in CC outlet, and an NBR gasket. Rated for 300 psi. Used for branch connections in water, gas, or industrial piping systems
Double-strap service saddle for making branch connections on water mains and industrial pipelines. Fits pipe with outside diameter 10 3/4 in – 11 1/8 in. Ductile iron body with two stainless steel straps and stainless steel hardware. Includes NBR gasket rated to 300 psi. 2 in NPT outlet
SMITH-BLAIR
Double-strap service saddle for making branch connections on water mains and industrial pipelines. Fits pipe with outside diameter 10 3/4 in – 11 1/8 in. Ductile iron body with two stainless steel straps and stainless steel hardware. Includes NBR gasket rated to 300 psi. 2 in NPT outlet
Double-strap service saddle for 3 in – 4 in pipe (3 3/4 in – 4 1/8 in outside diameter). Features two stainless steel straps, stainless steel hardware, NBR gasket, and a 1 in CC outlet. Rated for 300 psi. Used to create a branch connection on steel or cast-iron pipe in water, gas, and process piping systems
SMITH-BLAIR
Double-strap service saddle for 3 in – 4 in pipe (3 3/4 in – 4 1/8 in outside diameter). Features two stainless steel straps, stainless steel hardware, NBR gasket, and a 1 in CC outlet. Rated for 300 psi. Used to create a branch connection on steel or cast-iron pipe in water, gas, and process piping systems
Double-strap service saddle for 4 in – 4 in pipe with 1 1/2 in CC outlet. Fits outside diameter 4 3/8 in – 4 3/4 in. Stainless steel straps and hardware, NBR gasket, 300 psi rating. Used for branch connections in water, wastewater, and process piping systems
SMITH-BLAIR
Double-strap service saddle for 4 in – 4 in pipe with 1 1/2 in CC outlet. Fits outside diameter 4 3/8 in – 4 3/4 in. Stainless steel straps and hardware, NBR gasket, 300 psi rating. Used for branch connections in water, wastewater, and process piping systems