High Temperature Heating Retrofit Butterfly Valve
Triple offset butterfly valve for district heating retrofit. API 609. DN80-DN2000. Class 150-600. Zero-leakage metal-to-metal sealing up to 600°C.
Product Introduction
XURI High Temperature Heating Retrofit Butterfly Valves are specially engineered for district heating network upgrades and high-temperature heating system retrofit projects. Built on advanced triple offset (triple eccentric) geometry, these valves deliver reliable zero-leakage shut-off in demanding heating applications where conventional valves fail due to thermal cycling, pressure fluctuations, and seat wear.
The triple offset design creates a cam action during opening and closing that completely eliminates friction between the seat and disc, ensuring long service life under frequent operation. Metal-to-metal sealing provides inherent fire safety and handles continuous operating temperatures up to 600°C, making these valves the ideal replacement for outdated gate valves in heating system retrofit projects — offering significant weight, space, and cost savings.
Design Features
- Triple offset design — zero friction operation, no seat wear
- API 609 compliant
- Bubble-tight shut-off — ANSI Class V/VI zero leakage in both directions
- Bi-directional sealing for dead-end service and isolation
- Fire-safe metal-to-metal sealing
- High temperature capability up to 600°C
- Compact and lightweight — ideal for retrofit projects with limited installation space
- Available in wafer, lug, and double flange connections
- Easy automation with standard ISO 5211 mounting pad
Technical Specifications
- Design Standard: API 609, ASME B16.34
- Size Range: DN80 – DN2000 (3″ – 80″)
- Pressure Rating: ANSI Class 150 – 600
- Temperature Range: -46°C to +600°C
- Connection: Wafer type, Lug type, Double Flange
- Body Materials: Carbon Steel (WCB), Stainless Steel (CF8/CF8M), Alloy Steel
- Seat Materials: Stainless Steel (stellite overlay), Inconel
- Disc Materials: Stainless Steel, Duplex Stainless Steel, Inconel
- Stem Materials: Stainless Steel, Inconel
- Testing Standard: API 598, ISO 5208 Rate A
- Operation: Manual (gear operator), Pneumatic actuator, Electric actuator
Applications
- District heating network retrofit and upgrade
- High-temperature hot water (HTW) systems
- Superheated steam isolation and control
- Heat exchange stations — inlet/outlet isolation
- Combined Heat and Power (CHP) plants
- Industrial high-temperature process heating
- Replacement of aging gate valves, globe valves, and ball valves in heating systems
Contact our sales team for technical datasheets, retrofit application engineering support, and sizing assistance.
Product Overview - XURI Valve
This Concentric butterfly valve features compact design for efficient flow control. Available with various seat materials. Class 150-600, sizes 2"-60". API 609 certified. Zero leakage design available. Suitable for HVAC, water treatment, chemical, and general industrial applications.
ISO 9001 certified butterfly valve factory, OEM/ODM available for custom seat materials. Factory direct pricing, API 609 compliant, fast delivery.
