THAGO 2m x 2m penstock installed at Jurong Island cooling tower
Flow Control Equipment

Penstock & Stopboard

Precision-fabricated flow control gates for waterways, drainage, wastewater treatment, and industrial applications.

What we supply

Custom-fabricated penstocks and stopboards

THAGO supplies stainless steel penstocks and stopboards for a wide range of applications — from palm oil mill wastewater treatment ponds to industrial cooling towers and municipal drainage systems.

All equipment is fabricated to specification and available with a choice of operators — from simple handwheels to fully motorised electric or pneumatic actuators.

Penstock installed in channel at palm oil plantation
Products

Penstock & Stopboard range

Motorised penstock with electric actuator

Penstock

Sliding gate valves for controlling flow in open channels, ponds, and pipelines. Available in manual and motorised configurations. Suitable for wastewater treatment, drainage control, and industrial process applications.

Specifications
MaterialSS304 / SS316
OperatorHandwheel · Bevel Gear · Electric Actuator · Pneumatic Actuator
ApplicationWastewater · Drainage · Cooling systems · Industrial process
Stainless steel stopboard

Stopboard

Flat panel gates for temporary or permanent flow isolation. Typically used in open channels and drainage structures where a simple, robust closure is required. Fabricated to fit any opening size.

Specifications
MaterialSS304 / SS316
OperatorHandwheel · Bevel Gear
ApplicationOpen channels · Drainage · Waterways · Irrigation
Featured installation

2m × 2m Penstock — Jurong Island

2m x 2m penstock at Jurong Island cooling tower

A large-format 2m × 2m stainless steel penstock supplied and installed for a cooling tower facility on Jurong Island, Singapore. Fabricated in SS304 with a motorised electric actuator for remote operation.

Size
2000 × 2000mm
Material
SS304
Location
Jurong Island, Singapore
Application
Cooling tower
Operator options

Manual or motorised — we supply both

Handwheel

Simple manual operation. Cost-effective for smaller gates and low-frequency use.

Bevel Gear

Geared manual operator for larger gates requiring greater mechanical advantage.

Electric Actuator

Motorised operation for remote control, automation, and high-frequency cycling.

Pneumatic Actuator

Air-powered operation for fast actuation and hazardous area installations.

Get in touch

Enquire about penstocks and stopboards

Tell us your opening size, material preference, and operator type and we'll get back to you with a quote.

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