CMS Engineered Products LLC Corrosion Management Systems
CMS Engineered Products LLCCorrosion Management Systems
Lined diaphragm valve for corrosive chemical service

Industrial Diaphragm Valves

Fully Tefzel™ lined valve bodies in stock, including large dia.


We have weir style or straightway (which are excellent for slurries, sludges, or viscous fluids) industrial diaphragm valves for your process flow applications. All diaphragm valves feature leak-tight performance, isolation between the bonnet assembly and the process fluid, no stem packing to fail or replace, simple in-line maintenance, low line pressure loss, and flow sealable in either direction. Industrial diaphragm valves are suitable for use in the chemical, food, paper, steel, mining, power generation and pharmaceutical industries.


  • Available in manual or actuated design


  • Available in flanged (½” to 12” sizes); threaded (screwed), butt or socket weld end connections (½” to 3” sizes)


  • Available in cast iron, ductile iron, 316 stainless steel, Alloy 20 body materials


  • Available unlined or lined with the following:

Tefzel™ (ETFE), PFA, Kynar™ (PVDF), Halar™ (ECTFE), polypropylene (PPL), PVC, natural (soft) rubber, hard rubber, Hypalon, Butyl, Neoprene, and glass lined.


Pressure ratings up to 200 PSI and temperatures up to 340 degrees Fahrenheit (depending on the materials of construction, liner material and end connections).

Pneumatic actuated diaphragm valve assy.
Straightway diaphragm valve (cross-section)

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Contact Information

Corporate address:

CMS Engineered Products LLC

235 W 54th Str.

Indianapolis, IN  46208


New shop address:

CMS Engineered Products LLC

1322 W Winona

Unit #3S

Chicago, IL  60640


Please e-mail or phone your repair parts requirements

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Corrosion resistant PTFE

We specialize in PTFE molded expansion joints / flex connectors - many in stock for immediate shipment; custom fabrication available upon request.


Please also review our fully PFA lined ball & butterfly valves, as well as our full line of PTFE lined hose products for your corrosive and/or aggressive fluid transfer application(s).


Biopharm, pharmaceutical, industrial-grade products available, many from inventory for immediate shipment.

All major credit cards accepted for immediate purchase
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