The Pneumatic Actuated Stainless 2-Piece Flanged Fire Safe Ball Valve represents the pinnacle of safety engineering for critical fire protection systems. These fire safe ball valves combine advanced automation technology with fail-safe design principles to ensure uninterrupted operation in emergency situations. Our Joepai Co. produced this type of valves from premium stainless steel or carbon steel, deliver exceptional corrosion resistance and structural integrity across demanding industrial environments. The 2-piece pneumatic flange ball valve only need to rotate 90 degrees of operation and a small torque can be closed tightly. The completely equal body cavity provides the medium with little resistance and a straight flow path. Ball valves are generally considered to be most suitable for direct opening and closing use, but recent developments have designed ball valves to provide throttling and flow control. The main feature of the ball valve is its compact structure, easy operation and maintenance, suitable for water, solvents, acids and natural gas and other general working media, but also suitable for poor working conditions of the media, such as oxygen, hydrogen peroxide, methane and ethylene. Ball valve body can be integral, can also be combined.
1.Adjust the output shaft of the device to the closed position, close the valve, install the output shaft with its hole aligned with the mandrel and key, and then fix it with the bolt and valve bracket.
2.The opening and closing switch debugging should be carried out after the valve and pneumatic device are installed. If they open and close easily, with accurate positioning and no jamming, they are qualified. Otherwise, investigate the causes and troubleshoot.
3.Precautions:
A. Keep the air source dry and clean, and keep impurities away from the cylinder to avoid affecting the normal operation of the pneumatic device.
B. Frequently clean and maintain the surface of the device.
C. Conduct regular inspections.
Typically, the assembly of the actuator and ball valve is done using a bracket and connection set. Alternatively, they can be assembled by inserting the special stem into the shaft hole of the pneumatic actuator. Ensure that the spindle nose does not extend outside the shaft hole of the actuator, as this may cause malfunction due to jamming. All connecting parts must have high assembly precision; otherwise, changes in the opening or closing angle may cause valve leakage. The assembly tolerance of the parts should comply with relevant standards. The tolerance for the spindle nose of the shaft hole (stem), square hole, and slot is H11/d11, with parallelism and symmetry at a grade 9 geometric tolerance.
The Joepai designed of the Pneumatic Actuated Stainless 2-Piece Flanged Fire Safe Ball Valve delivers measurable performance advantages in fire protection systems. This fireproof ball valve features a quarter-turn operation and pneumatic actuator, essential for emergency isolation requirements, enabling rapid full opening and closing cycles. Joepai specializes in the production and processing of valve products, prioritizing safety and quality. We have a dedicated team and R&D center dedicated to developing and producing high-quality products tailored to market needs. Our product quality assurance encompasses the entire manufacturing process, from raw material selection to final assembly. We ensure that our products meet customer-required performance requirements, while offering competitive pricing and superior service, delivering real economic benefits. We look forward to working together with you for a truly successful and mutually beneficial partnership.
Parameter |
Details |
| Model | Q641F Pneumatic Actuated Stainless 2-Piece Flanged Fire Safe Ball Valve |
| Material | Cast Steel (WCB) or Stainless Steel (CF8/CF8M) |
| Size Range | DN15 - DN600 (1/2" - 24") |
| Pressure Rating | PN16, PN40 |
| Connection Type | Flanged (RF, RTJ) |
| Design Standard | ANSI B16.34, API 6D, ASME B16.10 |
| Face-to-Face Standard | ANSI B16.10, ASME B16.34 |
| Flange Standard | ANSI B16.5, DIN EN1092-1, JIS B2220 |
| Testing Standard | API 598, ISO 5208 |
| Temperature Range | -29°C to 200°C (-20°F to 392°F) |
| Operation Method | Manual, Electric Actuator, Pneumatic Actuator |
| Medium | Water, Oil, Gas, Petrochemical, etc. |
| Application | Water Treatment, Oil & Gas, Petrochemical, Power Plants, etc. |
Reliable Seal: PTFE seats provide a bubble-tight seal, preventing water loss.
Quick Operation: Quarter-turn handle allows for instant open/close control.
High Visibility: Bright red coating meets fire safety color-coding standards.
Durability: Stainless steel construction ensures performance in demanding environments.
Low Maintenance: Robust 2PC design and corrosion-resistant materials reduce lifetime costs.
Invest in the valve that guarantees performance when it matters most. Ensure the reliability of your fire protection system with JOEPAI.
Address
Building 2, No. 4228, Binhai 3rd Road, Xinghai Street, Longwan District, Wenzhou City, Zhejiang Province, China
Tel
