Metal-to-metal Seat Ball Valve
Metal-to-metal Seat Ball Valve
Ball valve sealing sub (i.e., seat sealing surface and ball sealing surface) material pairing for the metal-to-metal ball valve. The structure of the ball valve is divided into floating ball type and fixed ball type, the connection form for the flange connection, welded connection and threaded connection.
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.
Stem packing:
O-ring | Graphite | PTFE
Standards:
Design Standard:
API 608 | API 6D | ISO 17292 | ISO 14723 | ISO 14313
Flange Standard:
ASME B16.5 | ASME B16.47 | MSS SP 44
Butt Welding Standard:
ASME B16.25
Socket Weld Standard:
ASME B16.11
Threaded Standard:
ASME B1.20.1
Testing Standard:
API 6D | API 598 | ISO 15848 | ISO 5208
Fire Protection Standard:
API 607 | API 6FA
Applications
Abrasion | Scouring | CorrosionParticles | Slag
High Temperature | Solid-Liquid Media etc.
Body Construction
One-piece | Two-piece | Three-piece
Assembly type
Side Mounted | Top Mounted
Structure
Floating Ball | Fixed Ball
Caliber Range
NPS 1/2″ to 32”
Pressure Range
Class150 to 2500 | PN16 to PN420
Temperature Range
-46℃ to 750℃ | -50.8℉ to 1382℉
Material Molding
Forging | Casting
Ball Treatment
Supersonic Spray
WC | CrC | STL | Fslloy-2
Fslloy-4 | Fslloy-6 | Fslloy-8
Seat Treatment
Surfacing
WC | CrC | STL | Fslloy-2
Fslloy-4 | Fslloy-6 | Fslloy-8
Pressure And Temperature Grade
ASME B16.34
Structure length
ASME B16.10 | API 6D | ISO 5752 | ISOS0 1431
Driving Method
Handle | Worm Gear | Electro-hydraulic Linkage
Pneumatic-hydraulic Linkage | Electric | Pneumatic etc.
Structure length
ASME B16.10 | API 6D | ISO 5752 | ISOS0 14313
Features And Benefits
Metal-to-metal seat ball valve is suitable for some severe, harsh conditions, such as high temperature, high pressure, high wear conditions, it can solve the problem of internal and external leakage of the valve, to provide stable and effective protection.
Supersonic Spraying Technology
Adopting supersonic spraying technology, applicable to any temperature, pressure and medium, the main spraying area is the surface of the ball body and the sealing surface of the valve seat, to ensure the efficient sealing of the ball valve in various working conditions.
Double Block And Double Row Function
Equipped with double-block double-row function to ensure bidirectional isolation and drainage, suitable for occasions with higher requirements for sealing, and improve safety.
Automatic Pressure Relief And Anti-drainage Design
The automatic pressure relief function in the center chamber protects the safety of the equipment; the anti-stem blowout design further improves safety and prevents accidents under high pressure.
Tungsten Carbide Spray Welding
The valve seat and spherical surface are supersonic spray welded with tungsten carbide, which can withstand the abrasion during cleaning and effectively remove the dirt on the sealing surface to ensure the long-term sealing performance.
High Hardness And Adhesion
The hardness reaches HRC 68-72, the welding adhesion ≥ 10000 Psi, and the thickness of the sprayed layer is 0.2 – 0.3 mm, which provides long-lasting wear resistance.
Precision Fit
The valve seat and ball are one-to-one, which improves sealing precision and ensures fluid control stability and sealing reliability.
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