We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
4 inch ductile iron lug butterfly valve aluminum bronze disc gear operated EPDM

Legend Valve

Legend Valve 116-644 4" T-365AB-G Butterfly Valve EPDM

SKU CH-CMPJ-PHZYY

A 4-inch ductile-iron lug-type butterfly valve with an aluminium-bronze disc, gear operator and EPDM seat for flow control

  • 4-inch ductile iron lug butterfly valve
  • Aluminium bronze disc resists corrosion in water systems
  • Gear operator provides controlled manual actuation
  • EPDM seat handles hot and cold water service
  • California Proposition 65 chemical warning applies

Product identity

This 4-inch ductile-iron lug butterfly valve is built for commercial and industrial piping systems that need reliable flow control. The gear operator provides mechanical advantage for manual actuation on larger lines. Buyers needing a compact ball valve or an automated actuator package will not find those features here.

Materials and operation

The aluminum-bronze disc resists corrosion in water and many chemical services while the EPDM seat handles hot and cold water duties. Gear operation replaces a lever so the valve can be opened or closed with less torque on a four-inch line. Systems requiring a different seat elastomer or a bare shaft for actuation must look elsewhere.

Installation checks

Verify that the piping flanges match the lug bolt pattern and that the line pressure falls within the valve’s rated class. Confirm the media is compatible with EPDM and aluminum bronze before installing. Ensure adequate clearance for the gear handwheel and that the mounting orientation suits the flow direction required.

Highlights

  • 4-inch ductile iron lug butterfly valve
  • Aluminium bronze disc resists corrosion in water systems
  • Gear operator provides controlled manual actuation
  • EPDM seat handles hot and cold water service
  • California Proposition 65 chemical warning applies

Specifications

BrandLEGEND VALVE

Questions about this item

How often should the EPDM seat be inspected or replaced on the 116-644 valve?

The EPDM seat on the 116-644 valve should be inspected during routine system maintenance; replacement timing depends on media type, temperature cycles, and operating pressure in your specific installation.

What pressure or temperature limit is reached first during continuous operation of the 365AB-G?

The 365AB-G ductile iron body and aluminum bronze disc set the pressure boundary, while the EPDM seat determines the maximum continuous temperature before degradation begins.

How much heat does the gear operator on the 116-644 generate during all-day cycling?

The gear operator on the 116-644 produces minimal heat during normal cycling because it is a manual mechanism without an electric motor or hydraulic pump.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.