Monel Alloy Globe Valve DN40 Price, Hydrofluoric Acid Service
I. Price Range Reference
Currently, the price of a Monel alloy globe valve DN40 suitable for hydrofluoric acid service is roughly as follows:
Economy Grade (1,800–2,800 RMB): Body made of Monel 400, with trim partially in Monel or Hastelloy. Suitable for low-pressure, infrequent operation.
Standard Grade (2,800–4,500 RMB): Full Monel 400 construction, with PTFE or PFA seals. Suitable for continuous hydrofluoric acid transfer.
Premium Grade (4,500–8,000 RMB): Monel K-500 construction, reinforced sealing and leak-proof design. Suitable for high-pressure, high-temperature, or stringent environmental requirements.
Note: Pneumatic or electric actuators require an additional 1,500–5,000 RMB.The main stop valve product names of China Stop Valve Network include:Flange Fluorine-lined Globe Valve,ANSI Flange Straight-through Globe Valve,UJ41H Flange Straight-through Plunger Globe Valve,Electric Flange Straight-through Globe Valve,Forged Steel Straight-through Globe Valve,GB Stainless Steel Flange Globe Valve,Flange Straight-through Low Temperature Globe Valve,Pneumatic Flange Straight-through Globe Valve.
II. Key Factors Affecting Price
Material Grade: Monel K-500 offers better wear and corrosion resistance than Monel 400, costing 30%–50% more.
Seal Type: PTFE, FEP, or PFA seals show significant cost differences.
Pressure Class: Class 150, 300, and 600 ratings increase price progressively.
Certification Requirements: Valves requiring fire-safe (API 607) or low-emission (ISO 15848) certification command higher prices.
III. Critical Purchasing Recommendations
Verify material authenticity: Under hydrofluoric acid service, counterfeit Monel will corrode rapidly and fail.
Specify concentration and temperature: Changes in HF concentration and temperature greatly affect material selection.
Request coupon test reports: Ask the supplier for corrosion rate data of the material under simulated service conditions.
Consider leakage rating: Hydrofluoric acid is highly toxic and volatile – specify low-emission packing and bellows seal construction.
For an accurate quotation, provide detailed operating parameters (temperature, pressure, concentration, switching frequency) and request quotes from 2–3 specialized alloy valve manufacturers.
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