HEAT EXCHANGER TUBE FERRULES
From Northwest Machining Services

Selected Alloy, Precision-Fabricated Heat Exchanger Tube Ferrules Resist Aqueous and High Temperature Corrosion Attack in Heat Exchangers and Condensers Operating in Chemical, Petrochemical Processing, Refining, and Energy Industries

Northwest Machining Services in Houston, Texas offers decades of experience in the combining of the extrusion of customer-specified ferrule outlets, hot forming, and close tolerance geometry machining with - high integrity welding - TIG, MIG, stick, & sub-arc - all suitable for service in corrosive chemicals, high temperature ethylene furnaces, pyrolysis heaters, and other types of custom specification reformer equipment.


After fabrication, Northwest Machining Services provides customer-specified heat treating and non-destructive testing (NDT), including radiography, ultrasonic, liquid penetrant. ASME Section VIII, Div. 1 - Unfired Pressure Vessels and pressure piping "U" and "PP" certification are available at customer request.


Types of heat exchanger ferrules from Northwest Machining Services, Houston, TX
Heat exchanger tube ferrule detail

MATERIALS AVAILABLE FOR
HEAT EXCHANGER TUBE FERRULES

COMMON GAGES USED IN
WELDED STAINLESS TUBING

STAINLESS STEEL FERRULES
from tubing alloys to ASTM A-249 or A-269

HIGH NICKEL ALLOY FERRULES
 from tubing: Alloys 200 / UNS N02200 - 400 / UNS N04400
- 600 / UNS N06600 - 622 / UNS N06622 - C-276 / UNS N10276
- 625 / UNS N06625 - 686 / UNS N06686 - 690 / UNS N06690
- 693 / UNS N06693 - 800HT / UNS N08811 - 825 / UNS N08825
 - 330 / UNS N08330 - other alloys on request.

COPPER ALLOY FERRULES 90-10 PR 70-30
From tubing to ASTM B-111
TITANIUM FERRULES

CARBON STEEL PIPE AND FERRULES
From tubing to ASTM A-214

GAGE
24
22
20
18
16
14
12
11
10

WALL
.022”
.028”
.035”
.049”
.065”
.083”
.109”
.125”
.134”