Trunnion Mounted Ball Valve
Trunnion Mounted Ball Valve
Trunnion mounted ball valve, flange gate valves, flange butterfly valves and oxygen pressure reducing valves are the same type of valve, the difference is that its closing member is a sphere, the sphere rotates around the center line of the valve body to achieve the opening and closing of a valve. Ball valve in the pipeline is mainly used to do cut off, distribution and change the direction of flow of media. Ball valve is a new type of valve widely used in recent years.
Technical Specifications
Materials:
Body:
Forged Carbon Steel: ASTM A105 | ASTM A350 Gr. LF2 | A182 F5,F9, F11, F22, F91;
Forged Stainless Steel: ASTM A182 Gr F316, F316L, F316Ti, F304, F347H, F317L, F321/321H, F310S, F44(254SMO)
Duplex: A182 F51, F53, F55
Nickel Alloy: Monel 400 | Inconel 600, 625 | Hastelloy C27, C22, B2 | Incoloy 800/800HT, 825 etc.
Ball:
ASTM A105 w/ENP | ASTM A350 Gr. LF2 w/ENP | ASTM A182 Gr. F316 | ASTM A182 Gr. F316 w/ENP
Stainless Steel | Duplex SS | Nickel Alloy etc.
Seat:
RPTFE | Nylon | Davilon | PEEK | Tek-Fil® | TFM
Stem:
ASTM A479 Type 410 | 17-4PH | XM-19 | ASTM A182 F316 | Stainless Steel | Duplex SS | Nickel Alloy etc.
Standards:
Design Standard:
API 6D | ASME B16.34
Testing Standard:
API 598 | API 6D
Fugitive Emission Standard:
ISO 15848-1 | ISO 15848-2
Applications:
Oil and Gas Pipeline | Offshore Platforms | Onshore Terminals | Emergency Shutdown | Metering Stations
Suction and Discharge Isolation | Pumping | Compression and Reinjection Units | Block and Bypass
Pig Traps |Surge-Relief Skids | Decoking Isolation | Buried Services | Produced Water (Brine) Services
Maximum Permissible Working Pressure
ASME CL150、300、600
Shutoff Rating
Zero Leakage
Body Style
Two Piece | Three Piece
End Connections
Flanged | Butt Weld
Certifications
API 607 | ISO 15848-1
Ports
Full
Face to Face
ASME B16.10
Temperature Range
-50 to 600°F | -45 to 315°C
Size Range:
2 to 24 inches | 50 – 600 mm
Temperature Range
-50 to 600°F | -45 to 315°C
Features And Benefits
Emergency Stem Sealant Injection
This standard feature allows the valve’s stem housing to be matched to a grease fitting for sealant injection in an emergency, providing protection against unexpected peaks in operating conditions.
Emergency Seat Sealant Injection
This optional feature allows the valve’s end connections to be matched to a grease fitting for sealant injection. This produces an effective seal when the valve seat leaks due to in-service contaminants or unexpected peaks in operating conditions.
Drain and Vent Ports
The drain port, located at the bottom of the valve, is used to release fluid trapped in the shutoff valve body cavity. The vent port, located at the top of the valve body cavity, vents trapped gas from a fully closed valve body cavity. Both play a critical safety role in a double shutoff bleeder valve and/or double isolation bleeder valve configuration.
Double Block Bleed
This safety feature eliminates pressure buildup due to high pressure media trapped in the valve body cavity, even when the valve is in the fully closed position.
Fireproof design
A secondary metal seat design provides fireproof closure in accordance with API 607. In addition, secondary graphite body seals and flexible graphite packing prevent leakage from the body seams and stuffing box, respectively.
Internal trunnion design
Upper and lower bearing plates hold the ball in place, preventing it from floating axially and overloading the seat. External trunnion design is available for some sizes.
Pressure Energized Stem Packing
Our proprietary energizer ring sits on top of the main O-ring stem seal and provides insurance in the rare event of O-ring damage by utilizing media pressure to create an upward compressive force on the packing. This upward force on the packing is combined with the downward compressive force generated when the packing gland is tightened, resulting in a greater net compressive force on the packing and a better seal than typical packing designs.
Double sealing at the valve body connection
The primary elastomer seal ensures no leakage under standard operating conditions. A secondary graphite seal ensures proper body joint sealing under extreme temperature conditions per API 607.
Antistatic devices
Standard antistatic devices ensure electrical continuity between the ball, stem, and body, eliminating the possibility of static charges sparking inside the valve.
Valce Position Indication
Clear stamped markings on the outside diameter of the mounting flange identify the open or closed position of the valve based on the orientation of the stem key.
ISO 5211 mounting pads
Rugged ISO 5211 mounting pads allow for quick transition between the valve and automation components.
Explosion-Proof Stem Design
Valves are designed with a stem/body connection that prevents the stem from bursting under line pressure.
Your quest for reliable and efficient ball valves ends here with Reliable Ball Valve Suppliers. We are a team of dedicated ball valve manufacturers who take pride in our ability to deliver top-notch products. Our custom ball valves service ensures that every valve is made to your exact specifications, offering a perfect fit for your unique requirements.
GET A QUOTE FREE
Contact Us
Since 2008, we have been serving in the industry for 15 years. Whether it’s300 series stainless steel, super duplex steel, nickel based alloy materials,trust us to provide you with a relaible solution!
We can be at your service within 24
hours. You also can send email to us: info@kaysuns.com