Localized corrosion
Chemistry can attack body, trim, bolting or welds differently.
jessamynlee@vornetvalve.com+86 178 8819 0118
EN | RU
Critical Service / Corrosive Media
Corrosion-Resistant Valves Selected from Chemistry, Temperature and Exposure
Material, trim and sealing selections for acid, alkali, seawater and aggressive chemical fluids.
Selection basisFull chemistry + concentration
Material routeAlloy / lined / coated
Typical solutionStainless / alloy / lined valve
Engineering focus
Design out the dominant failure risks
Select the complete wetted system from composition, concentration, pH, chlorides, contaminants, temperature, velocity and cleaning conditions.
Galvanic interaction
Mixed wetted materials can accelerate attack.
Seal degradation
Seats, packing and gaskets may swell, harden or weaken.
Valve selection
Match the architecture to the duty
Starting points for engineering review. Final selection depends on the completed process data and project specification.
Alloy Gate or Globe Valve
Best fit: Corrosive duty with proven metallic compatibility.
Engineering focus: Wetted material, welds and corrosion allowance.
Lined Valve
Best fit: Strong chemical duty within lining limits.
Engineering focus: Lining continuity, permeation and vacuum resistance.
Alloy Ball Valve
Best fit: Quarter-turn isolation with compatible soft goods.
Engineering focus: Cavity relief, seats and emission requirements.
Buyer essentials
Six inputs for a comparable quotation
Send the same completed datasheet to every supplier and require a clear deviations list.
All constituents, concentration, pH and contaminants.
Normal, design, cleaning and upset values.
Velocity, phase, aeration, solids and stagnation.
Body, trim, seat, packing, gasket and bolting.
Rate, allowance, lining and target life.
MTC, PMI, hardness, NDE and lining tests.
Service-specific RFQ data
Cleaning chemicalsCompatibility historyCoupon dataChloride limits
Standards & verification
Specify measurable acceptance
Confirm edition, test medium, pressure, duration, leakage acceptance, material traceability and witness points in the purchase order.
ASME B16.34API 598ISO 15848-1NACE MR0175 / ISO 15156
Buyer FAQ
Can material be selected from a fluid name?
No. Concentration, temperature and contaminants change compatibility.
Does stainless steel solve every problem?
No. Chlorides, acids and crevices can still cause localized attack.
When should a lined valve be considered?
When a compatible lining meets pressure, temperature and permeation limits.
Send your RFQ for an engineering review
Share the completed datasheet, quantity, destination and delivery target for a practical recommendation and factory quotation.
*Portfolio limits depend on valve type, size, material, pressure-temperature rating and completed engineering review.
◆ Global Delivery↕ Fully Customized● Direct Relationship✓ API / ASME Compliance