High Performance Valve
81FS Series Ball Valve
Engineered for high performance and process-critical applications.
What’s Inside Matters
Engineered for Performance
Every part is designed for durability, precision, and reliability under pressure. From anti-static safety, fire safety to stem seal integrity, each component plays a critical role in long-term valve performance and system safety.
Fire Tested To API 607 Valvewerkz 81FS Soft-Seated 3pc Ball Valve
Part Name
1. Belleville Washer
2. Bushing
3. V-Ring Packing
4. Upper and Lower Stem Seal
5. End Cap
6. Seat
7. Body Gasket
8. Ball
9. Body
What’s Inside Matters
Engineered for Performance
Constructed with full stainless steel and fire-safe features, it provides robust sealing and long-term reliability in aggressive environments. Designed for critical isolation in industries such as oil & gas, chemical processing, and power plants, the 81FS excels under demanding pressure and temperature conditions.
Fire Tested To API 607 Valvewerkz 81FS Soft-Seated 3pc Ball Valve
01. Fire-Safe Design for Leakage Prevention
In the event of a fire, soft seats are destroyed, allowing the ball to move downstream and create a secure metal-to-metal seal against the end cap’s fire-safe lip, preventing through leakage.
02. Blow-Out Prevention
Integral stem shoulder design prevents blow-out and leakage under extreme conditions.
03. Anti-Static Protection (Dual Anti-Static Device)
Dual anti-static system reduces the risk of safety hazards from static electricity.
04. Reliable Stem Sealing
V-ring packing combined with a primary pyramidal stem seal ensures dependable sealing performance.
05. Fire-Resistant Stem Seal
Grafoil packing and seal arrangement maintain integrity under fire conditions for enhanced safety.
81FS Series
The 81FS Series Ball Valve is a fire-safe, precision-engineered solution designed for high performance and process-critical operations.
Specifications
Design
3-Piece Body – Fire Safe
Full Bore / Reduced Bore
Body Material
Carbon Steel,
SS304
SS316
Ball Material
SS316
Seat Material
CPTFE
TFM4215
TFM4215 + 50%SS
PEEK
Connection
Threaded End (¼” – 4”)
Socket Weld End (¼” – 4”)
Butt Weld End (¼” – 10”)
Size
Full Bore DN8 (¼˝) to DN100 (4˝)
Reduced Bore DN15 (½”) to DN100 (4˝)
Automation Option & Accessories
Pneumatic Actuator
(Single Acting / Double Acting)
Electric Actuator
Flow Capacity
Cv = 9.2 to Cv = 1020
Pressure Rating
Full Bore
2000psi ¼” – 1”
1500psi 1 ¼” – 2”
1000psi 2 ½” – 4”
Reduced Bore
2000psi ½” – 1”
1500psi 1 ¼” – 2”
1000psi 2 ½” – 4”
Key Features
- Superior Live Loaded Packing System
- ISO 5211 Mounting Pad (Bracket Required)
- Blowout-Proof Stem
- Dual Anti-Static Devices
- Fire Safe Design
Performance Testing
Shell Test
Seat Test
Fire-safe Tested
Hydro Test
Anti-static Test
Application Versatility
Built to Perform Across Industries
Our valves are engineered to deliver consistent performance across a wide range of demanding industrial environments.
Palm oil and oleochemical lines
General manufacturing
Water and wastewater pipelines
Power plant steam isolation
Chemical and blending applications
Available Options
Enhance Your Valve Functionality
Choose from a range of accessories designed to extend performance, simplify operation, and suit specific installation needs.
