1. Comprehensive Technical Specifications
Component & System Parameter | Standard Industrial Specification & Field Options |
Brand / Manufacturer | SDF |
Valve Classification | Ball Valve / 3-Piece (3PC) Split Body Ball Valve |
Drive / Actuation Mode | Manual Gear Operated (Worm Gearbox with Handwheel) |
Design Standards | API 6D, ASME B16.34, BS 5351, API 600 |
Nominal Size Range | DN25 to DN400 / 1 Inch to 16 Inch |
Pressure Ratings | ASME Class 150, Class 300, Class 600 / PN16 to PN100 |
Body & Bonnet Metallurgy | ASTM A351 CF8M (SS316), ASTM A216 WCB (Carbon Steel), Cast Iron |
Ball & Stem Metallurgy | ASTM A182 F316 / High-Polished Stainless Steel 316 |
Sealing Seat Matrix | Reinforced PTFE (RPTFE), PEEK, Devlon, or Metal-to-Metal Seats |
End Connection Interfaces | Flanged Ends Raised Face (RF to ASME B16.5 / DIN EN 1092-1) |
Applicable Media Profile | Corrosive Liquids (Corros), Gas, Potable Water, Heavy Oil, Steam |
Safety Features | Anti-Blowout Stem, Anti-Static Device, Fire-Safe Design (API 607) |
Quality Certifications | CE Certified, ISO 9001 Manufacturing Infrastructure |
2. Key Features and Engineered Advantages
1. High-Integrity 3-Piece Split Body Design: The three-piece structural architecture provides exceptional mechanical strength and rigidity under high hydraulic pressures. This layout allows service crews to simply unbolt the casing bolts and swing out the central body block to replace worn seats or seals, leaving the flanged piping connections completely undisturbed.
2. Premium Corrosion-Resistant Metallurgy (SS316): Utilizing cast or forged Stainless Steel 316 for the body and internal trim prevents aggressive pitting and chemical breakdown. This choice of material guarantees product purity and chemical inertness when regulating acidic lines, brackish water, or corrosive petrochemical fluids.
3. Low-Torque Manual Gear Actuation: For large-diameter or high-pressure loops, standard handles become difficult to cycle. SDF integrates a heavy-duty enclosed worm gearbox that multiplies manual input force, providing smooth, predictable 90-degree closing kinematics without causing water hammer or operational fatigue.
4. Anti-Blowout Stem & Anti-Static System: The valve stem is engineered with an internal bottom shoulder that prevents stem blowout under extreme internal line pressures. Additionally, internal grounding springs ensure permanent electric continuity between the ball, stem, and valve body, safely dissipating static buildup to prevent sparks in hazardous gas areas.
5. Floating or Trunnion Ball Alignment: The internal solid stainless ball is precision-ground and micro-polished to minimize seat friction coefficients. Backed by resilient, high-pressure polymer inserts, the sealing boundary ensures absolute bubble-tight shutoff across fluctuating high and low differential pressures.
3. Typical Industry Applications
The SDF high-pressure flanged three-piece ball valve handles severe service isolation across major industrial networks:
1. Oil & Gas Transmission Pipelines: Isolation matrices at custody transfer stations, field gathering lines, city gas distribution headers, and chemical injection skids.
2. Chemical Refining & Processing: Regulating raw chemical transport loops, volatile hydrocarbon lines, solvent handling, and corrosive acid feed blocks.
3. Heavy Industrial Utilities & Steam Loops: High-pressure plant boiler feed lines, cooling water arrays, thermal oil systems, and industrial plant utility headers.
4. Water Utility & Wastewater Infrastructure: High-pressure reverse osmosis (RO) desalination manifolds, effluent sludge isolation, and brackish municipal pumping loops.
4. Quality Assurance and Factory Compliance Testing
To guarantee zero-defect field installation and ensure premium operational safety, every SDF high-pressure ball valve must pass rigorous factory validation protocols:
Hydrostatic Body Shell Pressure Testing: Every valve assembly undergoes physical shell validation at $1.5 \times$ its nominal design pressure rating to eliminate casting porosity and structural flaws.
API 6D High-Pressure & Low-Pressure Sealing Tests: The primary seats undergo double-direction pressure verification to ensure absolute zero-leakage isolation under high-pressure liquid and low-pressure pneumatic states.
Fire-Safe Compliance Verification: The valve trim architecture is built to conform to international fire safety guidelines, ensuring that if soft seats are destroyed in an emergency, a secondary metal-to-metal boundary seals the fluid line safely.
FAQ
1.When can I get a quotation?
We typically provide a quotation within 4 hours of receiving your inquiry. Urgent requests are given priority.
2.Do you support customized valves?
Yes. We support OEM and customized valves according to drawings, specifications, and special working conditions.
3.What is the production lead time?
Normally, production can be completed within 15 working days after order confirmation, depending on product type and quantity.
4.What standards do your valves comply with?
Our products comply with GB, ANSI, API, JIS, DIN, BS, and other international standards.
5.What pressure, size, and temperature ranges can you supply?
Pressure: Class 150-3500 Size: DN10-DN3000 Temperature: -196ºC to 610ºC
6.What certifications do you have?
We are certified with ISO 9001, CE, and provide third-party inspection and test reports upon request.
7.What delivery and payment terms do you offer?
Delivery terms: EXW, FOB, CFR, CIF
Payment terms: T/T (30% deposit + 70% balance), L/C, and other terms by agreement.
8.Do you provide technical support and spare parts?
Yes. We offer 24/7 technical support and supply spare and consumable parts for long-term service.
