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Top Loading Arms

The most popular OPW top loading arm used in many applications worldwide.

This versatile arm is designed specifically for top-loading installations where a variable operating range is required. The secondary arm rotates 360 degrees in the horizontal plane providing a spotting allowance of up to twice its length.

Commonly used to handle high flow rates and to withstand rough usage in tank-truck loading applications. The scissor type arm is also a good choice for railcar loading applications where cars are frequently mis-spotted.

Features & Benefits

Ideal for applications where variable spotting of the vehicle is common
Easy to handle, smooth operation
All flanged construction in for ease of maintenance (available in 3” and above)
Swivels equipped with grease nipple
Durable construction
C32RF with inboard loading valve and remote control handle, H32F without valve
Available in 2” / dn50, 3” / dn80 or 4” / dn100 with ASA 150lbs RF or DIN PN10/16 inlet flange
Inverted inlet swivel orientation, model C33RF or H33F, to assist self draining capability available
Adaptable to tight-fill or closed-system loading with optionally supplied swivels and couplers
Alternative materials of construction Carbon Steel or 316/316L Stainless Steel
Wide range of swivel seal material available
Pre-balanced at the factory to minimise installation and commissioning time

Downloads

Product Specifications

Materials of construction

Inlet swivel	Ductile Iron
Intermediate swivel	Aluminium
Drop tube swivel	Aluminium
Swivel seals	Viton® GFLT
Primary arm	Aluminium
Secondary arm	Aluminium
Drop tube	Aluminium

Dimensions

Size	Dimensions (in mm)
	D	G	M	R
2” / dn50	2200	1500	700	381
2” / dn50	2800	1750	900	381
3” / dn80	2200	1500	700	406
3” / dn80	2800	1750	900	426
4” / dn100	2200	1500	700	451
4” / dn100	2800	1750	900	451

Other Dimensions available on request

Spare Parts

Part number	Description
3002K-20-VG	2”/dn50 swivel Seal Replacement Kit [Tab], Viton^® GFLT
3002K-30-VG	3”/dn80 swivel Seal Replacement Kit [Tab], Viton^® GFLT
3002K-40-VG	4”/dn100 swivel Seal Replacement Kit [Tab], Viton^® GFLT
6402RK-0202	2” loading valve repair kit, Viton^®
6402RK-0302	3” loading valve repair kit, Viton^®
6402RK-0402	4” loading valve repair kit, Viton^®

Accessories

Electronic Ground Verification Controller Brochure

Article number	Description
466-AL30	Obsolete
466-AL40	Drip pan, for 4”/dn100 arm
464RP-AL30	T-deflector, for 3” /dn80 arm
464RP-AL40	T-deflector, for 4”/dn100 arm
788L-0040	Lock down device, right hand configuration
788LLH-0045	Lock down device, left hand configuration

Optional available Accessories include: Level detection; Position detection; Working position locking device, Parking lock, Automated or manual ball valve, Telescopic Drop tube, Stand Post and many more, please consult factory for information and availability.

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