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As a flagship product from RICK VALVES, a leading Chinese manufacturer with over 15 years of expertise in industrial valve production, the Stainless Steel High-Temperature Resistant Hard-Seal Butterfly Valve stands out for its exceptional performance in extreme conditions. Designed to meet stringent international standards including API 609, ANSI B16.34, and DIN 3352, this valve integrates advanced engineering with durable materials to deliver reliable flow control across diverse industrial sectors.
Crafted primarily from high-grade stainless steel (including CF8, CF8M, and 316L variants), the valve is engineered to withstand elevated temperatures and harsh media, making it a preferred choice for applications where sealing integrity and longevity are critical. Its hard-seal design, combining metal-to-metal contact with precision machining, ensures leak-free operation even under fluctuating pressure conditions. Backed by RICK VALVES’ rigorous quality control processes—including ISO 9001 certification and CE approval—this butterfly valve embodies the brand’s commitment to excellence.
Parameter | Value |
Size Range | 2"-24" (DN50-DN600) |
Pressure Rating | Class 150-600 (PN16-PN100) |
Temperature Range | -40~600℃ |
Body Material | Stainless Steel (CF8, CF8M, 316L), Ductile Iron |
Seat Material | Hardened Metal (Stellite, Alloy 6) |
End Connection | Flanged (ANSI B16.5, DIN 2501), Wafer, Lug |
Operation Mode | Manual (Handwheel), Electric Actuator, Pneumatic Actuator |
Testing Standard | API 598, ISO 5208 |
Flow Coefficient (Cv) | Up to 10,000 (varies by size) |
The valve’s metal-to-metal hard-seal design eliminates the risk of leakage in high-temperature and high-pressure environments. The seating surfaces—treated with wear-resistant alloys like Stellite—ensure tight closure even after thousands of cycles, outperforming soft-seal alternatives in abrasive or corrosive media.
With a rated temperature range of -40~600℃, this valve excels in applications involving superheated steam, thermal fluids, and industrial gases. Its stainless steel construction resists oxidation and thermal fatigue, maintaining structural integrity in continuous high-heat operations.
Premium stainless steel materials (including 316L for extreme corrosion resistance) protect against chemical erosion, making the valve suitable for handling acids, alkalis, and saline solutions commonly found in chemical processing and wastewater treatment.
The butterfly valve’s lightweight, space-saving structure simplifies installation in tight pipelines. Its 90-degree rotation operation ensures quick opening/closing, reducing flow interruption time and improving system efficiency.
Available with manual, electric, or pneumatic actuation, the valve adapts to automated or manual control systems. Electric and pneumatic options support remote operation, ideal for hazardous or hard-to-reach locations.
In refineries and chemical plants, the valve regulates flow in processes involving high-temperature hydrocarbons, solvents, and corrosive chemicals. Its hard-seal design prevents cross-contamination, while stainless steel construction resists degradation from aggressive media.
Used in thermal power plants to control steam flow in boilers, turbines, and heat exchangers. The valve’s 600℃ temperature tolerance and pressure rating of Class 600 make it suitable for superheated steam systems.
Handles high-temperature industrial wastewater and chemical dosing lines. Its corrosion resistance ensures longevity in chlorinated or acidic water environments, while the hard-seal design prevents leakage of contaminated fluids.
Controls cooling water and molten metal transfer lines, where high temperatures and abrasive particles are common. The valve’s durable construction withstands thermal shocks and mechanical wear.
Regulates hot water and steam flow in large-scale heating systems. Its compact design and efficient operation reduce energy loss, making it a cost-effective choice for commercial and industrial heating networks.
Hard-seal valves use metal seating surfaces (e.g., Stellite) for high-temperature, high-pressure, or abrasive applications, while soft-seal valves use elastomers (e.g., EPDM) for lower-temperature, non-abrasive media. Our hard-seal design offers superior durability in extreme conditions.
Yes, when constructed from 316L stainless steel, the valve meets hygiene standards for potable water. Its smooth internal surfaces prevent bacterial buildup, making it safe for municipal water networks.
Periodic lubrication of the stem and actuator (for automated models) is recommended. The stainless steel body and hard-seal components are low-maintenance, with a service life of 10+ years under normal operating conditions.
RICK VALVES offers customization for sizes beyond 2"-24" (up to DN1200) and special materials (e.g., duplex stainless steel) for unique industrial needs. Contact our technical team for details.
Yes, all units include API 598 test reports, and optional certifications (e.g., FDA, ATEX) are available for food-grade or explosive environments. Our production process is ISO 9001-certified to ensure quality.
