Chemical Process Valves Manufacturer in India
Welcome to Kelor Valves, a leading chemical process valve manufacturer in India. We build precision industrial control valves for corrosive fluids. Our valves ensure zero leakage and high purity. They are perfect for chlor-alkali, agrochemical, pharmaceutical, and fine chemical plants. Whether you need custom valves or a reliable partner for flow control, we deliver engineering excellence.
[Request a Technical Quotation]Engineering & Compliance Standards
As ISO certified chemical valve exporters and domestic market leaders, our manufacturing adheres to the strictest global benchmarks:
- Quality & Pressure: ISO 9001:2015 | ASME B16.34 | API 6D / ANSI flanged ends
- Safety & Emissions: API 607 (Fire-safe design) | ISO 15848 (Fugitive emission certification)
- Specialized Service: NACE MR0175 (Sour gas service compliance) | ATEX / IECEX Actuation
Trusted by EPC chemical plant valve contractors & Plant Managers across: Gujarat (Dahej, Ankleshwar, Vapi), Maharashtra (MIDC Pune, Mumbai, Thane), Tamil Nadu (Cuddalore, Chennai), Andhra Pradesh (Visakhapatnam), and global export markets.
Chemical Plant Process Valves: Our Manufacturing Range
1. PTFE / PFA / FEP Lined Chemical Valves
If you are looking to buy PTFE lined chemical valves online or need a reliable bulk chemical process valves supplier, we provide the ultimate solution for highly corrosive acids, alkalis, and chlorides. We line ball, globe, diaphragm, and check valve types with high-purity fluoropolymers, combining the mechanical strength of carbon steel with the chemical resistance of Teflon.
- Types: PTFE/PFA/FEP lined ball, diaphragm, globe, and check valves.
- Temperature Range: -29°C to +150°C (PTFE) / up to +200°C (PFA).
- Applications: Hydrochloric acid, sulfuric acid, wet chlorine gas.
2. Solid Exotic Alloy Valves
For high-temperature and high-pressure corrosive services where lined valves are insufficient, we machine valves from solid Hastelloy, Monel, and Titanium alloy valves. We also supply premium SS316L / Duplex / Super Duplex stainless steel valves for critical applications.
- Applications: Hot concentrated acids, oxidizing environments, offshore sour gas.
3. High-Purity & Sanitary Chemical Valves
Electropolished SS316L diaphragm, pinch, and globe valve types designed for zero dead-leg, CIP/SIP compatible systems in pharmaceutical and fine chemical manufacturing.
4. Industrial Chemical Control Valves (Automated)
Advanced industrial chemical flow control solutions. Custom-engineered globe and rotary control valves with anti-cavitation and noise reduction trim. Supplied as complete instrumentation and control valve packages featuring pneumatic and electric actuated valves and smart positioners (HART/Fieldbus).
5. Bellows Sealed Valves (Zero Fugitive Emissions)
Crucial for toxic, volatile, and hazardous chemical processing. Our bellows sealed valves guarantee zero fugitive emissions, fully compliant with ISO 15848-1 Class BH for environmental safety.
Material Selection Guide: PTFE-Lined vs. Solid Alloy
Selecting the right corrosion-resistant process valves is critical for plant safety and lifecycle cost. Here is how our process engineers guide your selection:
| Parameter | PTFE/PFA Lined Valves | Solid Alloy (Hastelloy/Titanium) |
|---|---|---|
| Best For | Highly corrosive media at low/medium temps | High temp/pressure corrosive & abrasive media |
| Cost | Low to Medium | Very High (Exotic metallurgy) |
| Temp Limit | Up to 200°C (PFA) | Up to 600°C+ (depending on alloy) |
| Abrasion Resistance | Poor (soft liner can tear) | Excellent (hard metal surface) |
| Typical Media | HCl, H2SO4, Caustic Soda, Chlorine | Hot concentrated acids, catalysts, slurries |
Unsure which material fits your process? Send us your process data sheet (PDS) for a free material recommendation.
Application-Specific Chemical Manufacturing Valves
- Chlor-Alkali & Caustic Soda: PTFE-lined diaphragm and ball valves, nickel alloy valves for dry chlorine and hot caustic.
- Agrochemicals & Pesticides: Corrosion-resistant globe control valves for continuous dosing, PFA-lined valves for acid intermediates.
- Pharmaceutical & Fine Chemicals: SS316L electropolished diaphragm valves, zero-dead-leg designs, FDA/USP Class VI compliant seats.
- Petroleum Refining & Petrochemical: NACE MR0175 compliant valves, fire-safe API 607 designs, anti-cavitation trim for sour water strippers.
- Effluent Treatment (ZLD/ETP): Abrasion-resistant pinch valves and lined butterfly valves for highly acidic/alkaline sludge and brine.
Procurement Support for EPC Chemical Plant Valve Contractors
We act as a strategic partner for EPC chemical plant valve contractors and plant procurement teams, simplifying the sourcing of complex chemical plant process valves.
- Complete Package Supply: Valve + Actuator + Positioner + Accessories as a single tested assembly.
- Engineering Support: Free Flow coefficient (Cv value) calculation, noise prediction, and material selection assistance during the FEED stage.
- Documentation: Full EN 10204 3.1/3.2 MTCs, PMI reports, NDT reports, and FAT (Factory Acceptance Test) witness arrangements.
- Lead Times & Pricing: Standard PTFE lined valves: 3-4 weeks. Exotic alloy control valves: 8-12 weeks. Contact us today for a comprehensive chemical control valves price list / quotation.
Frequently Asked Questions: Chemical Process Valves
What is the best valve material for highly corrosive chemicals?
For low-to-medium temperatures, PTFE/PFA lined valves (using a carbon steel or ductile iron body) are the most cost-effective and highly resistant to acids like HCl and H2SO4. For high-temperature, high-pressure, or abrasive corrosive services, solid exotic alloys like Hastelloy C276, Monel 400, or Titanium are required.
How do I select the right control valve for a specific chemical process?
Selection requires analyzing the process data sheet: fluid type, temperature, pressure drop, and required flow rate. Based on this, we select the valve type (globe for high pressure drop/precision, rotary for large flows), material of construction, and trim design (e.g., anti-cavitation cage for flashing liquids) to ensure optimal industrial chemical flow control.
What is the difference between PTFE-lined and solid alloy chemical valves?
PTFE-lined valves offer excellent chemical resistance at a lower cost by using a carbon steel body with a fluoropolymer liner, ideal for lower temperatures. Solid alloy valves are machined entirely from exotic metals (like Hastelloy or Titanium) to withstand extreme heat, high pressure, and severe abrasion where a soft liner would fail.
Which valve types are best for handling abrasive chemical slurries?
For abrasive slurries (e.g., in mining or ETP plants), pinch valves with natural rubber or neoprene sleeves are ideal as the sleeve absorbs the abrasion. Full PTFE-lined ball valves or hardened alloy globe valves are also used depending on the particle size and concentration.
How do I calculate the flow coefficient (Cv) for chemical process valves?
The Flow coefficient (Cv value) is calculated using the specific gravity, pressure drop, and required flow rate of the fluid. Our engineering team uses advanced sizing software to calculate the exact Cv required for your piping system to prevent cavitation and ensure precise throttling control.
What industry certifications (API, ASME, ISO) are required for chemical valves?
Baseline certifications include ASME B16.34 (pressure-temperature ratings) and ISO 9001 (quality). For fire-risk areas, API 607/API 6FA fire-safe design is required. For toxic gases, ISO 15848 (fugitive emission) is mandatory. For sour gas (H2S) environments, NACE MR0175/ISO 15156 material compliance is critical.
How can we prevent fugitive emissions in chemical processing valves?
Fugitive emissions of toxic or volatile chemicals are prevented by using bellows sealed valves or valves equipped with live-loaded packing systems. These must be tested and certified to ISO 15848-1 standards to ensure zero leakage at the stem.
What is the expected lifecycle and maintenance schedule for chemical plant valves?
Lifecycle depends heavily on the media and cycling frequency. PTFE-lined valves typically last 3-5 years in highly corrosive service before relining is needed. Solid alloy valves can last 10+ years but require annual inspection of packing, actuator calibration, and seat wear. Predictive maintenance via smart positioners is highly recommended.
Contact Kelor Valves: Get Your Quotation Today
Looking for reliable industrial chemical valves suppliers and distributors in India? Share your process data sheets, valve schedule, or P&ID requirements. As a leading custom chemical process valves manufacturer, our engineering team will provide a comprehensive technical-commercial offer, including material recommendations and Cv sizing.
Get in touch with our sales team directly:
- 📞 Call Us: +91 93135 43530
- ✉️ Email Us: sales@kelorvalves.com
- 🌐 Visit Us: https://kelorvalves.com/contact/