Valves, sized to the chemistry — not the catalog page
Ball, butterfly, plug, diaphragm, gate, knife gate, and lined valve architectures, selected against your fluid's real concentration, temperature, and duty cycle.
Valve selection depends on the fluid’s concentration, temperature, and duty cycle. Sodium hypochlorite shows why: vented-ball designs prevent off-gassing and crystallization, and EPDM seals fail by 104°F even when the valve body material is correct. LibertyCES runs a spec review of ball, butterfly, plug, diaphragm, gate, and lined valves rather than a part-number lookup.
Valve & flow-control architectures
NEMA 7/ATEX-rated variants for hazardous-location oilfield service
ISO 5211 direct-mount pads — compact, high-density installs
75% duty cycle rated for continuous adsorb/desorb cycling
Modulates 20-80% open by float position, 3"-24" line sizes
Where LibertyCES specs Flow Control equipment
Frequently Asked Questions
Why do some ball valves have a drilled vent hole for sodium hypochlorite service?
Hayward's TBH-Z Series and Asahi/America's ball valves both use a factory-drilled vent hole in the ball for this exact reason: it keeps sodium hypochlorite in the valve cavity in contact with fluid in the upstream piping, preventing off-gassing and crystallization that can occur inside a standard (non-vented) ball valve. A standard ball valve in high-concentration NaOCl service is a real, documented failure risk — not a theoretical one.
What valve material actually holds up to sodium hypochlorite?
Real chemical-resistance data (81-chemical, 12-material chart) shows PVC and CPVC rated resistant to 12.5% active-chlorine NaOCl through 104°F, with PTFE holding through 140°F. EPDM is the weakest common elastomer choice for this chemical — conditional at room temperature and failing outright by 104°F — so an EPDM-sealed valve is a real risk point even when the valve body material is correct.
What's the difference between a standard ball valve and a proportional control ball valve?
A standard ball valve (e.g. Hayward TBH) uses a full-port ball for simple on/off shutoff. A proportional control valve (e.g. Hayward CVH, with its Profile2 Characterized Ball) uses a purpose-built ball-profile geometry designed for throttling and modulating flow, not just stopping/starting it — a different mechanical design for a different job, not just a different size.
Does LibertyCES sell valves by catalog part number?
No — valve material and seal selection depends on the exact chemical, concentration, and temperature, which is why a valve that "should" work on paper can still fail in service (see the EPDM/NaOCl example above). LibertyCES runs a spec review against the real process data before recommending a valve, not a part-number lookup.
Send LibertyCES the process data, not a part number
Fluid, chemistry, concentration, temperature, flow, pressure, line size, and current equipment — that's what a real spec review needs to start.
Ready to buy or need a fast answer? Call, text, or email James directly — (559) 395-5500 · [email protected].
Send James your spec
Fluid, concentration, temperature, flow or volume, and where it goes. James replies with a real answer, not a catalog page.
Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated