Products / Flow Control

Pilot-Operated Control Valve

Direct answer

LibertyCES has documented Pilot-Operated Control Valve in Mining / Heap Leaching. Chemical compatibility is documented for Acids. Documented models include Netafim 90 Series, Netafim 100 Series and Netafim Flushing Valve with Timer. Send James the fluid, concentration, temperature and flow for a free spec review.

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1 sector application

Where LibertyCES specs Pilot-Operated Control Valve

Mining / Heap Leaching

Multi-source documented

Netafim 75 Series diaphragm-actuated hydraulic/electric control valve (PP; 3/4"-4"R at 10 bar/145 psi, 3"H-8"R at 12 bar/175 psi, 60°C/140°F max) · Netafim 90 Series (PVC body / PPS bonnet, 8-10 bar / 115-145 psi size-dependent, 40°C/104°F max) · Netafim 100 Series (cast iron / ductile iron / bronze / stainless, 16 bar/230 psi or 25 bar/365 psi) · Netafim Flushing Valve with Timer (PP 75 or PVC 90 body, 9V battery, IP67/NEMA 4X, 1-year+ autonomous)

1 chemical compatibility record

Chemical compatibility

Acids

Multi-source documented

Sulfuric AcidNitric Acid

Materials: ALD70 diaphragm (sulfuric acid limited to 38°C max) · ALD70 Not Good for nitric acid even at 10% · Hastelloy upgrade available for chlorine-based chemistries

Netafim 75 Series diaphragm-actuated hydraulic/electric control valve · Netafim 90 Series · Netafim 100 Series (cast iron / ductile iron / bronze / stainless, 16 bar/230 psi or 25 bar/365 psi)

Related Guides

Technical guides for Pilot-Operated Control Valve

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FAQ

Frequently Asked Questions

What industries use Pilot-Operated Control Valve?

LibertyCES has documented Pilot-Operated Control Valve specified across 1 sector application, including Mining / Heap Leaching.

How is Pilot-Operated Control Valve used in Mining / Heap Leaching?

Pilot-Operated Control Valve is specified for Mining / Heap Leaching applications — examples include Netafim 75 Series diaphragm-actuated hydraulic/electric control valve (PP; 3/4"-4"R at 10 bar/145 psi, 3"H-8"R at 12 bar/175 psi, 60°C/140°F max), Netafim 90 Series (PVC body / PPS bonnet, 8-10 bar / 115-145 psi size-dependent, 40°C/104°F max), Netafim 100 Series (cast iron / ductile iron / bronze / stainless, 16 bar/230 psi or 25 bar/365 psi), Netafim Flushing Valve with Timer (PP 75 or PVC 90 body, 9V battery, IP67/NEMA 4X, 1-year+ autonomous). This is well-documented in LibertyCES's field data.

Can Pilot-Operated Control Valve handle Acids?

Pilot-Operated Control Valve has documented compatibility with Acids Materials to confirm: ALD70 diaphragm (sulfuric acid limited to 38°C max), ALD70 Not Good for nitric acid even at 10%, Hastelloy upgrade available for chlorine-based chemistries. Specific chemicals include Sulfuric Acid, Nitric Acid.

Spec Review

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.

Request a spec review →Get the Netafim 100 Series Mining Guide (PDF)

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Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated October 13, 2026