Katup Kupu-kupu Monel 400
Katup Kupu-kupu WDL Monel 400 dirancang untuk asam hidrofluorik, air laut, dan media pereduksi tertentu. Tersedia dalam desain wafer, lugged, dan flanged.
Deskripsi
Katup Kupu-kupu Monel 400
Yang WDL Monel Butterfly Valve is designed for hydrofluoric
acid, seawater and selected reducing chemical media. Monel 400, designated
as UNS N04400, is a nickel-copper alloy used where common stainless steel
may not provide sufficient corrosion resistance.
WDL supplies Monel 400 butterfly valves in wafer, lugged and double-flanged
designs. Soft-seated, high-performance and metal-seated configurations can
be supplied with manual, pneumatic or electric operation.
Why Is Monel 400 Used for Butterfly Valves?
Monel 400 combines mechanical strength with resistance to many reducing
media. It is often considered for hydrofluoric acid systems because the
nickel-copper alloy can perform better than common stainless steel under
correctly controlled HF conditions.
- Suitable for many deaerated hydrofluoric acid conditions
- Resistance to seawater and flowing saltwater
- Useful performance in selected reducing acids and alkaline media
- Good mechanical properties across a broad temperature range
- Tersedia untuk desain katup dengan dudukan lunak dan dudukan logam
- Suitable for manual or automated process control
Available Valve Configurations
| Barang | Pilihan yang tersedia |
|---|---|
| Main material | Monel 400 / UNS N04400 |
| Tipe bodi | Wafer, berlubang atau berflensa ganda |
| Desain katup | Konsentris, offset ganda, atau offset tiga kali |
| Pilihan tempat duduk | PTFE, PTFE yang diperkuat, PFA, elastomer, atau dudukan logam |
| Operasi | Tuas, kotak gigi, aktuator pneumatik, atau aktuator listrik |
| Referensi desain | API 609, EN 593, API 598, EN 12266-1 or project specifications |
Applications of Monel Butterfly Valves
- Hydrofluoric acid production and transfer lines
- Fluoride chemical processing systems
- Seawater and marine utility pipelines
- Chemical and petrochemical processing
- Alkali and selected reducing-acid services
- Brine and salt-handling equipment
- Oil, gas and refinery auxiliary systems
Monel 400 Selection Notes
Monel 400 is not automatically suitable for every hydrofluoric acid
condition. Dissolved oxygen, aeration, oxidizing salts, temperature,
concentration and flow velocity can change the corrosion rate. The valve
seat and packing must also be compatible with the process fluid.
For seawater service, flow conditions should be reviewed because stagnant
seawater can create different corrosion behavior from continuously moving
seawater. Mixed acids and media containing strong oxidizers may require
another nickel alloy.
Pertanyaan yang Sering Diajukan
Is Monel 400 suitable for hydrofluoric acid?
Monel 400 is commonly considered for many hydrofluoric acid applications,
particularly under reducing or deaerated conditions. Concentration,
temperature, oxygen and impurities must be confirmed before selection.
Can Monel K-500 be used for the valve stem?
Monel K-500 may be considered when higher stem strength is required. Its
compatibility and heat-treatment condition must be reviewed for the
specified medium.
Informasi apa saja yang diperlukan untuk mendapatkan penawaran harga?
Please provide the valve size, pressure rating, medium composition,
concentration, temperature, flange standard, seat material, actuator type
and required quantity.
WDL Monel Valve Supply
WDL supplies customized Monel 400 butterfly valves with drawings, material
certificates and pressure-test documentation when specified in the order.
Send the operating data to WDL for material review and quotation.
Konten teknis telah ditinjau: September 2026.







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