Single Screen Manual
Automatic

Dual Screen Manual
Automatic

Quad Screen
Manual
Automatic

Six Screen
Manual
Automatic

Welded
Dual Automatic

Inline Flow Hand Operated Strainer -- Available in 14", and 16" models.  Type QH Hellan Strainers employ four handwheel equipped rotating screens and rigid scraper bars to remove solids from the surface of the screen when the handwheels are rotated. A solids collecting sump is also provided. Cleaning of the type QH is accomplished by opening one or both valves on the two sump flush outlets and rotating the handwheels several times. The cleaning cycle must be performed when the strainer is under positive pressure. Type QH strainers are preferably installed in the vertical up-flow position.

Size	Operation	Flow	Type	Outline Drawing	Pressure Drop Screen	Pressure Drop Wedge
14"	Hand-Operated	In-Line	QH
16"	Hand-Operated	In-Line	QH

Inline Flow Automatic Strainer -- Available in 14 and 16" models . Providing hands-free operation, type QA Hellan Strainers employ four, electric motor-driven rotating screens and rigid scraper bars to remove solids from the surface of the screens when the screens are rotated. A solids collecting sump is also provided. Cleaning of the type QA is initiated when the screen drive motors and the flush valve operators are actuated. Controls to accomplish these electrical functions are required. The cleaning cycle must be performed when the strainer is under positive pressure. Type QA strainers are preferably installed in the vertical up-flow position.

Size	Operation	Flow	Type	Outline Drawing	Pressure Drop Screen	Pressure Drop Wedge
14"	Automatic	In-Line	QH
16"	Automatic	In-Line	QH