80mm Ball Valve Price | Factory Direct Low Cost
Get competitive 80mm ball valve price for industrial pipelines. Durable stainless steel, flanged/threaded ends, PN16-PN40. Fast shipping & factory wholesale. Request quote now!
Description
The 80mm ball valve (DN80 nominal diameter, equivalent to NPS 3″) ranks among the most widely adopted medium-bore isolation valves deployed in process control and pipeline transportation systems. It stands out for rapid quarter-turn actuation, minimal flow resistance and dependable sealing performance, making it applicable for pipelines carrying liquids, gases, steam and particle-laden media. This article elaborates on the value of this size ball valve from technical specifications, connection types, application scenarios and frequently asked procurement questions.
1. DN80 Ball Valve Dimensions – Key Dimensions & Weight Reference
Mastering DN80 ball valve dimensions is fundamental for pipeline layout and support hanger design. Listed below are typical measurements of conventional 2-piece floating flanged ball valves rated PN16 (final dimensions subject to official engineering drawings):
| Parameter | Value |
|---|---|
| Nominal Diameter | DN80 (NPS 3″) |
| Face-to-Face Body Length L | Approx. 190 mm (Flanged End) / Approx. 120 mm (Butt Weld End) |
| Central Height (Handle to Valve Centerline) | Approx. 135 mm |
| Flange Outer Diameter (RF, PN16) | Approx. 200 mm |
| Bolt Circle Diameter | Approx. 160 mm |
| Bolt Quantity & Size | 8 × M18 |
| Standard Weight | 10~14 kg (Stainless Steel / Carbon Steel Versions) |
2. Material Grades, Pressure Ratings & Sealing Capabilities
- Valve Body: WCB carbon steel (-29℃~425℃), CF8/CF8M stainless steel (-196℃~450℃), duplex stainless steel for superior corrosion resistance;
- Ball & Stem: AISI 304/316L with surface hardening treatment; chrome-moly steel and Hastelloy are optional upgrades;
- Seat Materials: PTFE (-40℃~180℃), reinforced RPTFE, high-temperature PEEK, metal hard seals for abrasive or high-temperature working conditions;
- Pressure Range: PN16 ~ PN64 or Class 150 ~ Class 600;
- Leakage Class: Soft-sealed variants reach ANSI/FCI 70-2 Class VI for bubble-tight zero leakage, while metal-sealed types satisfy Class IV~V standards.
3. Typical Application Fields
- Oil & Gas Industry: Isolation and diversion for crude oil gathering pipelines and refined oil transmission lines;
- Chemical & Petrochemical Sector: Process isolation for acidic, alkaline fluids, solvents and polymer media;
- Energy & Utilities: Boiler feedwater and steam distribution systems (hard-sealed or high-temperature configurations required);
- Water Treatment & Environmental Protection: On-off control for sewage, reclaimed water and seawater desalination facilities;
- HVAC & Fire Protection Systems: Branch control for large chilled water, cooling water and fire sprinkler pipelines.
4. FAQ for Overseas Buyers
Q1: Can I use a standard soft-sealed 80mm ball valve for steam service?
A: Conventional PTFE valve seats can only withstand temperatures around 180°C. When dealing with saturated steam at 200°C or above, RPTFE or PEEK seats are recommended, or alternatively a metal-seated 80mm ball valve coated with hard alloy such as Stellite. Be sure to state the maximum operating temperature and pressure when placing orders.
A: Conventional PTFE valve seats can only withstand temperatures around 180°C. When dealing with saturated steam at 200°C or above, RPTFE or PEEK seats are recommended, or alternatively a metal-seated 80mm ball valve coated with hard alloy such as Stellite. Be sure to state the maximum operating temperature and pressure when placing orders.
Q2: Does the 80mm ball valve support bidirectional flow? What measures guarantee bubble-tight shutoff?
A: The majority of floating ball valves bear pressure bidirectionally. To realize zero leakage performance, every unit undergoes API 598 hydrostatic testing and pneumatic seat sealing tests prior to delivery. For critical working conditions, double block & bleed structures equipped with cavity pressure relief can be supplied on demand.
A: The majority of floating ball valves bear pressure bidirectionally. To realize zero leakage performance, every unit undergoes API 598 hydrostatic testing and pneumatic seat sealing tests prior to delivery. For critical working conditions, double block & bleed structures equipped with cavity pressure relief can be supplied on demand.
5. Reasons to Select Our 80mm Ball Valve
- Factory Direct Pricing: Middleman links are eliminated to cut overall procurement expenditure effectively;
- Full Lifecycle Quality Traceability: Material certificates, hydrostatic and air tightness test reports are attached to each valve covering casting through assembly processes;
- Customization Solutions: Special end connections (socket weld, butt weld), extended stems, locking devices and other customized structures are available;
- Fast Lead Time: Standard models are kept in stock constantly and can be shipped within 3 to 7 working days.
