Designers & Builders of Tank Trucks since 1948
OPW 3644 Slide Sleeve Drop Tube Swivels incorporate a built-on handle to facilitate top loading of tank vessels. Available in Fabricated Steel, Fabricated Stainless Steel, and Aluminum. Female NPT, 150# Flanged and TTMA Flanged styles available.

Tank Truck Service is a full-line distributor for OPW Engineered Systems. Please contact us for any items you do not see.

Swivel Joint Repair Kits are in the Industrial Swivel Joints section of our catalog.
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Item #

Item Name

Size

Body Material

Seal Material

Vendor Item #

Price

N/A Style 44 (Basic Style 40 w/ Grasp Handle) Female NPT Threads N/A 2 " N/A Aluminum N/A Buna-N N/A 3644-0201 $274.64
N/A Style 44 (Basic Style 40 w/ Grasp Handle) Female NPT Threads N/A 3 " N/A Aluminum N/A Buna-N N/A 3644-0301 $391.68
N/A Style 44 (Basic Style 40 w/ Grasp Handle) Female NPT Threads N/A 4 " N/A Aluminum N/A Buna-N N/A 3644-0401 $458.24
N/A Style 44 (Basic Style 40 w/ Grasp Handle) Female NPT Threads N/A 2 " N/A Aluminum N/A Fluorocarbon N/A 3644-0202 $283.82
N/A Style 44 (Basic Style 40 w/ Grasp Handle) Female NPT Threads N/A 3 " N/A Aluminum N/A Fluorocarbon N/A 3644-0302 $411.57
N/A Style 44 (Basic Style 40 w/ Grasp Handle) Female NPT Threads N/A 4 " N/A Aluminum N/A Fluorocarbon N/A 3644-0402 $483.48
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