Casing for H51, H52, H53 CI

Armstrong 116337-011 Cast-Iron Pump Casing for H51 / H52 / H53 CI Vertical Pumps (B-Size)

Overview

The Armstrong 116337-011 is a replacement cast-iron casing designed for vertical motor-mounted “B-size” Armstrong pumps in the H51, H52, H53 series. This casing is part of the “B” frame for Series-4360 vertical pumps and supports standard 3/8-inch impeller bore, 1/2-inch mechanical seal setups. It serves as the volute body in which the pump’s impeller turns, providing the sealed chamber for fluid flow and mechanical integrity

Key Features & Benefits

• OEM Armstrong part ensuring correct fit for H51, H52, H53 pump line “B-size” casings.

• Cast-iron construction for strength, durability, and resistance to wear and corrosion in standard industrial use

• Supports pump frames with 3/8-inch impeller bore and 1/2-inch mechanical seal in “B-size” vertical pump config.

• Compact and lightweight ~4 lbs — easier handling and installation.

Technical Specifications