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Fabricated HRPO Steel Diaphragm Case


Deliver power to homes and businesses with your stamped-out diaphragms

Metal stamping was the main metal forming solution in a previous Crow era, circa 1962.

These parts were for “diaphragm-actuated” pipelines (read: air-controlled & automatic), not electronically or manually actuated by hand-and-lever.

First, to deep draw this casing and provide a uniform surface out of hot rolled pickled and oiled steel (HRPO), they were run through a 500-ton large bed press.

At dimensions of 4" in depth and 18-9/16" in diameter, and with a circumference of 24", tight ± 0.005" tolerances were maintained on every curve.

Deburring and cleaning ensured the parts were void of any trace particulate, and eight of these components were shipped to the customer within a 10-day time frame.

You save money on material with parts this size when you deep-draw them.

So trust the Crow stamping department's press tonnage to handle all your redundant parts' needs, and contact us today.

Product Description

Two of these placed together for a valve actuator (with bolt pattern around circumference)

Deep Draw Stamping Capabilities Applied/Processes

Laser Cutting
Deep Draw Stamping

Equipment Used to Manufacture Part

500 Ton Press

Overall Part Dimensions

Depth: 4.00"
Diameter: Ø 18-9/16"
Circumference: 24"

Tightest Tolerances

± 0.005"

Material Used

HRPO Steel Plate

Material Finish


In process testing/inspection performed

Dimensional Inspection, Visual Inspection

Industry for Use

Oil & Gas



Delivery/Turnaround Time

10 work days

Delivery Location


Standards Met

Customer Specifications, 2D CAD Drawing