TOP-FLO® L-Pattern Diaphragm Valves from Top Line

ZERODL, L-Pattern Valves, York Fluid ControlsTop Line for years has specialized in manufacturing custom fabricated products designed specifically to meet our customers’ requirements. Our primary objective has always been to design and manufacture these specialty products by using state-of-the-art manufacturing practices and technologies.

Top Line and its affiliates employ engineers with a vast range of expertise and knowledge in the bioprocessing and pharmaceutical industries. The benefit of this is our ability to provide quick and accurate solutions to even the most complicated problems that occur in the field. All specialty products are manufactured using good manufacturing practices and are put through a very rigid quality control inspection before leaving our facility. These practices ensure that our customers receive quality parts ready for immediate installation. 100% BPE Compliant with full material traceability.


The TOP-FLO® L-Pattern Diaphragm Valves, due to their unique design, minimizes deadlegs in point-of-use outlets. The valve, while installed in a vertical position, serves as a 90° elbow. As fluid passes through the body, the valve can be opened to allow provision of uncontaminated samples. The outlet can also serve as a drain or a divert port.

Manufactured from forges 316L stainless steel in sizes ranging from 1/4'' through 6''. The TOP-FLO® L-Pattern Diaphragm Valves can be supplied with butt weld or clamp end connections and a wide variety of finish options.

Top Line offers several different types of switch packages and control monitors for position feedback to PLC.

Optional integrally mounted or externally mounted solenoid valves are also available.

Options include….


  • Mechanical

  • Proximity

  • Namur

Network Type:

  • AS-i

  • DeviceNet

  • Foundation Fieldbus

  • Modbus

Manufactures available but not limited to: Westlock, StoneL, Moniteur, Burkert, A-T Controls

Note: Not all platforms are available on all valve types. Consult factory for availability depending on requirements.


Manufactured from forged 316L stainless steel in sizes ranging from 1/4” through 6”, the L-pattern type can be supplied with butt-weld or clamp end connections and a wide variety of finish options. 100% BPE Compliant with full material traceability.

Top-Flo® Hygienic Diaphragm Valves

York Fluid Controls Limited, York, Fluid, Controls, Limited

Liquid Handling Equipment Specialists Since 1960

About Us

Established in 1960, York Fluid Controls Limited is a leading stocking distributor of fluid transfer and process pumps, positive displacement and centrifugal pumps, liquid filtration, valves, mixers and tanks. York offers an extensive range of services, including a complete repair and test centre, an engineering department, custom fabrication, and a machine and assembly shop. York serves organizations of all sizes and from all industries, throughout Canada. Reliability, service excellence, a desire to solve customers' problems and the highest ethical standards underpin this family-owned company and all that it does. Learn More


Our Products

York Fluid Controls has a wide variety of products for industry. Filtration Solutions, Industrial Mixers, Industrial Pumps, Industrial Valves, Power Units, Pulsation Dampeners, Sanitary Equipment, Sealing Products and Tank Container Systems from the world"s leading manufacturers

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York Fluid Controls Limited provides an indepth Directory of Industrial Pumps by both Pump Manufacturer and by Pump Type. We provide an Industrial Valve Directory of manufacturers and representatives. We offer a wide variety of products to meet your unique needs.

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