Loading and Unloading Arms – Long Range Top Loading Arm – Model 621 LR/B

Loading Arm Model 621-LRB

Loading and Unloading Arms – Long Range Top Loading Arm – Model 621 LR/B

Loading and Unloading Arms – Long Range Top Loading Arm – Model 621 LR/B with a supported boom provides the greatest reach out of all of the top-loading arms in the EWFM range. It has a triangular support which is mounted onto a horizontal boom assembly. It has four swivel joints incorporated into the design which gives a wide range of operation on both vertical and horizontal planes. This allows for multiple truck or rail car compartments to be loaded without the need for them to be repositioned.

Loading Arm

This loading arm is supplied with three Swivel Joints and one Swivel Elbow for vertical and horizontal positioning. The Swivel elbow includes handles so that the operator can easily maneuver the loading arm into the tanker. The model 621-LR/B can be manufactured in right or left-hand configuration

For more designs, please head to our loading arm page where you can find a range of Loading and Unloading Arms.

Specifications Model 621 LR/B

Available Sizes :

3? / 4? / 6?

Material :

Aluminum / Carbon Steel / Stainless Steel

Operating Pressure :

Up to 15 Bar G

Seal Material :

Nitrile / Special Viton®

Temperature :

-15°C / +65°C

Accessories :

Flute beak end
Microswitch to signal when the valve opened or closed
NDT tests (X-ray)
Stand post and support units
Locking Device
Overfill Level Sensor

Operating Conditions :

Design Pressure: 10.0 Bar G
Test Pressure: 15.0 Bar G
Design Temperature : -15° C / +65°C
Seal Material : VITON
Nitrile (BUNA N)
Special VITON (*)
Flow Rate : 3”– 75 mc/h Max
4”– 125 mc/h Max
6”– 280 mc/h Max

Standard Dimensions

Dn	3″	4″	6″
A	2500	2500	2500
B	2100	2100	2100
C	1200/2000	1200/2000	1200/2000
D	296	353	525
E	289	328	462
F	439	510	707
G	174	201	278
H	1000/2000	1000/2000	1000/2000
Weight	160	215	300

Item	Description	Dwg / Mod
1	Style 30 Base Swivel Joint	2174
2	Boom assembly	–
3	Style 50 Double Swivel Joints	2174
4	Loading Valve (stay/hold-open)	504
5	Primary Arm	–
6	Drop tube swivel	536
7	Drop tube with “T” deflector	2359-T
8	Spring Balancing Cylinder	05182
9	Pillow Block	C-4354
10	Valve Remote Control	2356
11	3/8” NPT Vacuum Breaker	2336
12	Nipper Drip Bucket	2408

Options:

Pos.7 with flute beak end (2359-BF)
Pos.7 with flow deflector (2359-D)
Microswitch to signal valve opened/closed
Locking device for arm in parking position
(*) Suitable for BIO-Products
Overfill level sensor
NDT test (RT-PT-MT) available on request

Notes:

621-LR/A Model is also available, with intermediate swivel Pos. 3 turned toward the top
Earthing continuity along the arm, according to ATEX directive

Reference: ewfm.co.uk

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