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Valves for Bitumen / Asphalt Service
Bitumen (asphalt) is the heaviest fraction of petroleum distillation, solid at ambient temperature and requiring heating to 150–230°C for handling and pumping. It is used for road paving, roofing, waterproofing, and as a heavy refinery product. Bitumen service is among the most demanding valve applications due to the extremely high temperature, high viscosity (thousands to millions of cP), potential for coking if overheated, and the risk of sudden solidification if the heat source fails.
Pressure Range
3–20 barg
Temperature
150–230°C operational; may reach 250°C in heaters
Industries
Refineries (bitumen loading), Road construction (bitumen plants), Roofing and waterproofing
What valves are used for Bitumen / Asphalt service?
Full-bore Jacketed Gate Valve are recommended for Bitumen / Asphalt service: Main isolation on bitumen headers - full bore for scraper/pigs; jacketed body maintains temperature.
Key Properties - Bitumen / Asphalt
- Solid below 30–60°C (depending on grade) - all equipment must be heated
- Pumping temperature: 150–200°C (bitumen); 200–230°C (cutback bitumen)
- Viscosity >10,000 cSt at 100°C - high differential pressure across valves
- Coking risk above 250°C if flow stagnates
- Extremely high fire risk if ignited at high temperature
Vajra Industrial Solutions manufactures and supplies valves for Bitumen / Asphalt service — including full-bore jacketed gate valve — in corrosion-appropriate materials selected for the operating conditions described here, with full material and test documentation.
Need valves for Bitumen / Asphalt service?
Send your fluid conditions — we'll recommend the right valve, material and standard, with a 24-hour quote.
Material Compatibility - Bitumen / Asphalt
Ratings are indicative. Actual compatibility depends on concentration, temperature, velocity, and presence of contaminants. Always consult corrosion tables or a materials engineer.
| Material | Rating | Notes |
|---|---|---|
| Carbon Steel (WCB) | Excellent | Standard for all bitumen service. |
| Cast Steel | Excellent | For higher pressure bitumen circuits. |
| Cast Iron | Poor | Brittle failure risk with thermal shock from bitumen solidification. |
Recommended Valves
Full-bore Jacketed Gate Valve
Main isolation on bitumen headers - full bore for scraper/pigs; jacketed body maintains temperature
Full selection guideJacketed Ball Valve (full bore)
Quick isolation for bitumen in tank connection and truck loading service
Full selection guideJacketed Globe Valve (Stellite trim)
Control of bitumen flow to storage or mixing
Full selection guideJacketed Y-Type Strainer
Upstream protection of pumps and meters from bitumen debris
Full selection guideValves to Avoid
Non-jacketed valves in bitumen service - solidification will seize stem
Cast iron valves - thermal shock failure risk
Butterfly valves in high-viscosity bitumen - unacceptable pressure drop
Special Considerations
Applicable Standards
Shop Valves for Bitumen / Asphalt Service
Other Fluid Services
Bitumen / Asphalt Service — Procurement & Specification
Typical Applications
Available Standards
Material Options
Documentation Available
- -EN 10204 3.1 Material Test Certificates (heat traceable)
- -API 598 hydrostatic shell & seat test reports
- -Dimensional inspection reports
- -Full Manufacturing Data Record (MDR) / data book on request
Inspection Options
- -In-house QC inspection on every order
- -Third-party inspection (SGS / Bureau Veritas / TÜV / DNV) coordination
- -Witness and hold points accommodated on request
Order Quantities
Flexible — from single critical-spare valves to full project lots.
Export
Worldwide export with complete documentation (COO, EUR.1, packing lists) to 20+ countries.
Custom Engineering
Built to your specification — materials, trim, pressure class and special service (NACE, fire-safe, IBR, cryogenic).
Delivery Support
Dispatch from Vadodara, Gujarat with documented lead times and priority handling for urgent requirements.
Engineering references
Connected Engineering
Need Valves for Bitumen / Asphalt Service?
Tell us your fluid, pressure, and temperature — we'll recommend the right valve, material, and standard, with a 24-hour quote.