Straub G20651-SI – Pipe Coupling, 3 in, 316 Stainless Steel, Polished, 2-Bolt, Axial Movement, Nitrile Seal, 232 PSI
Straub G20651-SI – Pipe Coupling, 3 in, 316 Stainless Steel, Polished, 2-Bolt, Axial Movement, Nitrile Seal, 232 PSI
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Commercial Ordering FAQ
How do I verify that Straub G20651-SI – Pipe Coupling, 3 in, 316 Stainless Steel, Polished, 2-Bolt, Axial Movement, Nitrile Seal, 232 PSI is the correct replacement part for my equipment?
Check the OEM part number (G20651-SI) against your equipment nameplate or the manufacturer's repair parts list before ordering. If you are not sure, call the National Boiler Supply order desk at 850-565-3492 and we can cross-reference your equipment model and serial numbers before the order ships.
What are the shipping and freight options for STRAUB orders?
Standard parcel orders ship quickly from commercial distribution centers. Shipping is a $35 flat rate on orders under $999, and qualifying orders of $999 or more ship free by ground. Heavy equipment that has to move by LTL freight is quoted after the order is placed and confirmed with you before dispatch.
Can contractors or facility managers request a formal quote or use a Purchase Order (PO)?
Yes. National Boiler Supply works with commercial contractors, mechanical engineers, municipalities, and facility teams. Call 850-565-3492 for a formal quote, bulk pricing, or PO and tax-exempt order processing.
What if this STRAUB part is marked Call to Order or needed for an emergency repair?
Call our order desk at 850-565-3492. We can confirm factory lead times right away and arrange expedited air or hot-shot delivery when a repair cannot wait.
National Boiler Supply supplies the Straub G20651-SI Pipe Coupling to contractors, facility teams, and purchasing departments. Get fast dispatch, contractor-ready quotes, and order desk support at 850-565-3492.
Product Overview
The STRAUB - G20651-SI is a stainless steel pipe coupling designed to join two 3-inch pipes in a straight line, creating a continuous flow path. Constructed from 316 stainless steel; corrosion resistance and mechanical strength are inherent properties, compatible with air, natural gas, non-potable water, and propane within the device's rated operating ranges. This coupling includes a standard nitrile seal to provide a leak-tight seal under defined operating conditions and is suitable for axial movement within piping systems. It meets various standards including ANSI, ASTM 1476, AWWA C227-07, ISO, and NP-15837/15838, and is certified as low lead compliant for potable water systems.
Features
- Material: 316 stainless steel with polished finish
- Nominal pipe size: 3 inches
- Overall length: 3 11/16 inches (3-45/64 inches)
- Maximum operating pressure: 232 psi
- Temperature range: -4°F to 180°F
- Includes 2 bolts made of 316 stainless steel with 89mm Hex heads
- Seal material: Nitrile, included to provide a leak-tight seal under defined operating conditions
- Designed for use with air, natural gas, non-potable water, and propane within the product's rated pressure and temperature ranges
Technical Specifications
| Brand | Straub |
|---|---|
| Manufacturer Part Number | G20651-SI |
OEM Part Verification: Confirm Straub part number G20651-SI against your equipment nameplate or parts list before ordering. Our order desk can cross-check it for you.
Order Desk Support: Call 850-565-3492 for formal quotes, lead times, and volume pricing.
Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
Apply for Trade Account & Terms →📋 Procurement & Shipping Notice
- LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
- Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?
👉 Request a Commercial Quote or contact our procurement team for direct freight scheduling.