Krausz 134-96-04111-16 Flange Adapter 4 Inch

Product Description

The KRAUSZ 134-96-04111-16 is a single-bolt flange adapter designed for 4-inch pipe connections in pressurized water and wastewater distribution systems. Part of the HYMAX GRIP product line, this adapter bridges plain-end pipe to flanged fittings or valves using a mechanical coupling design that eliminates the need for welding or threading. The unit ships with EPDM seals rated for service from -20 degrees F to 125 degrees F, making it suitable for buried, above-grade, or vault installations in municipal and industrial water infrastructure. It is compatible with outside diameters ranging from 4.40 to 5.10 inches, accommodating standard and slightly oversized 4-inch pipe ends.

This flange adapter is used in water main construction, valve replacement, and pipeline rehabilitation projects where a bolted flange connection is required at a plain pipe end. The EPDM seal compound suits potable water service and is compliant with NSF 61 and NSF 372 for drinking water contact. Municipal water departments, utility contractors, and licensed plumbers working on public water systems are the primary installers. The single-bolt design reduces installation time compared to multi-bolt alternatives.

Key Features

• Single-bolt flange adapter design reduces hardware count and speeds up installation
• EPDM seals rated from -20 degrees F to 125 degrees F for a wide service temperature range
• Fits outside diameters from 4.40 to 5.10 inches, accommodating standard 4-inch pipe
• NSF 61 and NSF 372 certified for potable water contact
• Meets AWWA C219 standard for bolted sleeve-type couplings
• Weighs 27 pounds per unit for planning lifting and rigging needs

Compatibility

Designed for use with 4-inch pipe having an outside diameter between 4.40 and 5.10 inches. Suitable for ductile iron, PVC, steel, and other pipe materials falling within that OD range in water distribution and wastewater systems.

Installation Notes

Installation is typically performed by licensed plumbers or utility contractors in accordance with AWWA guidelines and applicable local codes. The pipeline must be depressurized and isolated before fitting installation. Flange bolt torque sequences should follow the flange gasket and mating flange manufacturer specifications. Do not exceed the rated temperature or pressure limits of the EPDM seals.

Technical Specifications

• Fitting Size: 4 inches
• Outside Diameter Range: 4.40 to 5.10 inches
• Seal Material: EPDM
• Temperature Range: -20 degrees F to 125 degrees F
• Certifications: NSF 61, NSF 372, AWWA C219
• Weight: 27 pounds

Standard Information

• Brand: KRAUSZ
• Manufacturer Part Number: 134-96-04111-16