STRAUB GRIP-L 88.9mm 3.5″ 20650

Straub GRIP-L 88.9mm Pipe Coupling

Description

The Straub GRIP-L is a high-performance, pull-out resistant pipe coupling engineered for securely joining plain-end pipes with an outer diameter of 88.9mm. This Swiss-made component is constructed from high-grade stainless steel, ensuring excellent durability and corrosion resistance. It features an EPDM sealing sleeve, making it ideal for water-based applications. The progressive sealing effect and anchoring grip provide a reliable, leak-proof, and flexible connection that compensates for pipe misalignment and vibration.

Specifications

• Manufacturer: Straub
• Type: GRIP-L
• Part Number: 20650
• Pipe Outer Diameter: 88.9 mm / 3.5 inch
• Maximum Working Pressure (PN): 22 bar / 319 psi
• Gasket Material: EPDM
• Casing Material: Stainless Steel
• Installation Torque: 20 Nm

Label Info

• Serial Number: 214436051202
• Working Pressure (Pb min): 16 bar / 232 psi

Application

This coupling is designed for a wide range of industries including water and wastewater treatment, shipbuilding, power generation, and general industrial process piping. It is suitable for connecting pipes made of steel, stainless steel, cast iron, PVC, and other common materials.

Country of Origin

Made in Switzerland.

CO2 Impact

By purchasing this pre-owned item, you are contributing to a circular economy and helping to avoid approximately 3.6 kg of CO2 emissions associated with the production of a new unit.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What types of pipes is the Straub GRIP-L 88.9mm suitable for?

The GRIP-L coupling is designed for plain-end pipes and is compatible with a wide range of materials, including steel, stainless steel, ductile iron, PVC, and GRP. It is essential to ensure the outer diameter of the pipe is 88.9 mm for a proper fit and seal.

What is the recommended installation torque for the bolts on this coupling?

The label specifies a required torque of 20 Nm (or 14.8 lbf.ft). It is critical to use a calibrated torque wrench during installation to apply this exact torque to ensure the coupling is correctly tensioned for a leak-proof and pull-out resistant connection.

For which media is the EPDM gasket suitable?

The EPDM (Ethylene Propylene Diene Monomer) gasket is primarily suitable for water-based applications, including potable water, wastewater, and various water/glycol mixtures. It is not recommended for use with mineral oils, hydrocarbons, or solvents, for which an NBR gasket would be required.

Last Update: Friday, March 13, 2026

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