Metal Seated Ball Valve


Metal Seated Ball Valve is manufactured for high temperatures up to 540℃ (may be higher based on the material of the body and trim) or abrasion resistance.

What is a Metal Seated Ball Valve?

ZECO metal seated ball valve is suitable for high temperature and high pressure special medium or medium with particles in the pipeline. Metal seated ball valve type selection based on different working conditions of the analysis and calculation, choosing suitable working conditions of the hardness of the material hardness, to adopt advanced technology of spray welding on the surface of a sphere and valve seat sealing surface for special processing, grinding with hard-sphere, and seat sealing surface makes the fit precision no leakage.

Types of Metal Seated Ball Valves

  • Metal Seated Trunnion Mounted Ball Valves are split-body, trunnion-mounted ball valves with spring-loaded seats with cavity relief, they are double block-and-bleed capability.
  • Metal seated Floating ball valve is with Zero leakage for high­temperature operating conditions. Furthermore, seats with hard surface materials in Chromium Carbide, Tungsten Carbide, or Stellite are also available. All Relia floating ball valves are Antistatic Design and Automatic Body Cavity Relief.

Applications of Metal Seated Ball Valves

  • Oil & Gas
  • Refining / Petrochemical
  • Chemical Process
  • Power Generation
  • Pulp & Paper
  • Mining

Features of Metal Seat Ball Valve:

  • Absolute Fire Safe Guarantee. ZECO metal seated ball valves are absolutely fire safe design. Metal-to-metal contact is designed between the ball and the seat, where is an unconditional fire safe function. Flexible graphite gasket can prevent fluid leakage from between body & seat or body & adapter even if high temperature environments to reach fire-safe purposes. In addition, other sealing components such as stem packing can also reach fire-safe function and prevent external leakage. So all parts of the valve will not be affected by high temperature service.
  • Low Pressure Reliable Sealing. ZECO metal seated ball valves adopt a seat spring structure, which can push the upstream seat tightly against the ball surface creating a reliable sealing even if at extremely low pressure.
  • ZECO metal seated ball valve switch torque light. Because the bottom of the sealing ring spring seal ring with the ball closely together, as long as the switch torque exceeds the pre-load of the spring when the switch will be very light, and in the configuration of electric actuator, one can choose than other brands of the metal seated ball valve a small number of the electric actuator;
  • ZECO metal seated ball valves for high temperature has a long service life. General soft seated ball valves working temperature is limited up to 400°F, but metal-seated ball valves are guaranteed a maximum service temperature of 800 °F.
  • Blow-out Proof Stem & Anti-Static Device. As general ball valves, ZECO metal seated ball valves is provided with blow-out proof stem& anti-static device.

Product Range of Metal Seated Ball Valves

 Type  Metal Seated Floating Ball Valve/Metal Seated Trunnion Ball Valve
 Body Material  Carbon Steel, Low Temperature Carbon Steel, Stainless Steel, Duplex Steel
 Ball/Seat Surface  Stellite, Tungsten Carbide, Chrome Carbide
 Size Range  1/2”-48” (DN15-DN600)
 Class Rating  ANSI Class 150-2500 (PN20-PN420)
 End Connection  Butt Welding, Flanged, Hub
 Operator  Lever, Worm Gear, Electric, Pneumatic, Hydraulic
Temperature -196°C – 816°C (-320°F – 1,500°F)

Applicable Standards of Metal Seated Ball Valves

CONSTRUCTION Two Piece Body or Three Piece Body
Blow-Out Proof Stem
SEALING Uni-Directional or Bi-Directional
ASME B16.34
JIS B2002
FIRE SAFE Design and Certified API607, API6Fa, ISO10497
ISO EN15848-2
OPTIONS Extended Bonnet
Lip seals
Injection Sealing Seat & Packing
Heating Jacket
Drain & Vent
AED Seals
DBB- DIB1 – DIB2 as per API6D

Material of Metal Seat Ball Valve

No Part Material
1 Body ASTM A105
2 Bonnet ASTM A105
3 Ball ASTM A105 + Tungsten Carbide
4 Seat ASTM A105 + STL
5 Stem ASTM A182 F6a
6 Anti-static Device SS304
7 Gasket Graphite + SS304
8 Bolt ASTM A193 B7
9 Nut ASTM A194 2H
10 O-ring Viton A
11 Lever ASTM A216 WCB

If you are looking for reliable metal seated ball valve manufacturers, ZECO company can be your best choice.

ZECO Valve offers a variety of metal seated ball valves including three piece, flanged, welded body trunnion and dual seated metal trunnion valves. The primary advantage of metal seated valves is their ability to withstand high temperatures and severe service conditions. Metal seats can endure severe flashing, hydraulic shock, abrasive process fluid and high temperatures. They are also ideal for high erosion or corrosion applications.

Product Enquiry


Get a free quote

Contact Form Demo