Straub STR35901 – 5 in 304 Stainless Steel Open Flex Coupling, Axial Movement, EPDM Gasket, 232 PSI Max Pressure
Straub STR35901 – 5 in 304 Stainless Steel Open Flex Coupling, Axial Movement, EPDM Gasket, 232 PSI Max Pressure
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Commercial Ordering FAQ
How do I verify that Straub STR35901 – 5 in 304 Stainless Steel Open Flex Coupling, Axial Movement, EPDM Gasket, 232 PSI Max Pressure is the correct replacement part for my equipment?
Check the OEM part number (STR35901) 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.
Order the Straub STR35901 Fitting from National Boiler Supply. Call our order desk at 850-565-3492 for a formal quote or a part number cross-check.
Product Overview
The STRAUB - STR35901 is an open flex wrap-around coupling designed for joining 5-inch stainless steel pipes in a straight line. Made from 316-grade stainless steel, it features a polished finish and a seal designed for service up to 232 psi with an EPDM gasket. Operating temperature range: -4 to 212 °F; maximum operating pressure: 232 psi; material: 316 stainless steel; gasket: EPDM. This coupling accommodates axial movement and is compatible with various applications, including air, chemical products, fuel, gas, oil, other hydrocarbons, solids, and water. It complies with low-lead certification standards.
Features
- Material: 316 stainless steel with polished finish
- Nominal pipe size: 5 inches
- Coupling length: 4 13/64 inches
- Includes EPDM gasket seal (standard type)
- Bolt size ranges from 1/2 inch to 3/4 inch using galvanized steel bolts (2 bolts per coupling)
- Suitable for axial movement type connections
- Maximum operating pressure: 232 psi
- Temperature range: -4 to 212 degrees Fahrenheit
Technical Specifications
| Brand | Straub |
|---|---|
| Manufacturer Part Number | STR35901 |
OEM Part Verification: Confirm Straub part number STR35901 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.