Dredge Components

Turning Glands

Rotational pipeline connections that enable ±30-45° rotation while maintaining pressure integrity. Essential for hopper dredger suction systems.

Dredge Yard Turning Gland
±30-45° Rotation
Both sides
15 Bar
Pressure rated
400-1200mm
Size range
Low Friction
Smooth operation
Global Support
Worldwide service

What is a Turning Gland?

A turning gland (also known as a swivel joint or rotary joint) is a specialized pipeline component that allows ±30-45° rotation between connected pipe sections while maintaining a pressure-tight seal for slurry transport.

These components are essential in hopper dredger operations where suction pipes must rotate as the vessel moves during dredging. Without a turning gland, the relative motion between vessel and suction pipe would cause pipe damage or seal failure.

Our turning glands feature precision bearings and advanced sealing systems to ensure smooth rotation with minimal friction while handling abrasive slurry at working pressures up to 15 bar.

Turning Gland Cross Section
Turning Gland Working Principle

How Do Turning Glands Work?

A turning gland consists of two main parts: a stationary outer housing and a rotating inner section. These parts are connected through precision bearings that support the rotational loads while allowing smooth turning.

Multiple seal rings between the rotating and stationary parts prevent slurry leakage. The seals are designed to maintain contact under rotation and accommodate the wear from abrasive materials.

1
Bearing Support
Heavy-duty bearings carry axial and radial loads from pipeline forces
2
Rotary Seal
Multi-stage sealing system maintains pressure during continuous rotation
3
Flow Path
Full bore design ensures unrestricted slurry flow through the rotating connection

Turning Gland Size Range

We offer turning glands in sizes to match hopper dredger suction pipe requirements from small to large vessels.

Nominal Size Rotation Max Pressure Typical Application Action
400 mm (16") ±30-45° 15 bar Small hopper dredgers Quote
500 mm (20") ±30-45° 15 bar Small-medium TSHD Quote
600 mm (24") ±30-45° 15 bar Medium TSHD Quote
700 mm (28") ±30-45° 15 bar Medium-large TSHD Quote
800 mm (32") ±30-45° 15 bar Large TSHD Quote
900 mm (36") ±30-45° 15 bar Large TSHD Quote
1000-1200 mm ±30-45° 15 bar Mega TSHD Quote

Need a custom size or special configuration?

Discuss Custom Requirements

Technical Specifications

Our turning glands are built with premium materials for reliable performance in demanding hopper dredger operations.

Construction

Design Type Rotary swivel
Rotation ±30-45° both sides
Bore Type Full bore
Connection Flanged

Materials

Housing Ductile iron / Steel
Rotating Element High-grade steel
Bearings Heavy-duty roller bearings
Seals Multi-stage rotary seals

Performance

Max Pressure 15 bar (standard)
Rotation Speed Unlimited
Temperature Range -10°C to +60°C
Media Slurry, sand, water

Features

Seal Replacement Field serviceable
Grease Points Centralized
Bearing Monitoring Optional sensors
Coating Marine grade epoxy

Applications

Turning glands are essential components wherever rotational movement is required in dredging pipelines.

Hopper Dredger Suction

Connecting rotating suction pipe to fixed vessel piping on TSHD

Rotating Discharge

Rainbow discharge systems requiring rotation during operation

Swivel Connections

Any application requiring continuous rotation under pressure

Why Choose Dredge Yard Turning Glands?

Precision Bearings

Heavy-duty roller bearings ensure smooth rotation and long service life under high loads.

Multi-Stage Sealing

Advanced rotary seal design provides reliable pressure containment during continuous rotation.

Easy Maintenance

Centralized lubrication and field-serviceable seals minimize maintenance time and costs.

Full Size Range

From 400mm to 1200mm, we have turning glands for every hopper dredger size.

Quick Facts

Size Range 400-1200mm
Rotation ±30-45°
Max Pressure 15 bar
Operation Continuous

Ready to Discuss Your Turning Gland Requirements?

Our team is ready to help you select the right turning gland for your hopper dredger. Get in touch for a customized quote.