Metal Seated Ball Valve is manufactured for high temperature or abrasion resistance. Relia Metal Seated Ball Valves are Zero leakage (bubble tight seal).
For metal seated ball valve, the seat is coated and lapped to match ball, creating a positive seal. Metal-seated ball valves that provide superior operation at high temperatures as well as providing abrasion resistance in demanding applications.
Zero leakage available (MUCH higher level than ANSI/FCI 70-2 Class V shut-off, Class VI).
Features & Benefits
a) Unique, the metal seated ball valve with patented single-seat ball valve design. It has a flat spring set acting through a hard-faced bearing against the bottom ball shaft which provides sufficient initial ball-seat load for valve tightness, even at low delta P.
b) The metal seated ball valve design provides freedom for thermal expansion of the ball without jamming, even at extremely high temperatures.
c) Metal seated ball valve proven in qualification tests and field operation to be solids–proof, even for the toughest applications on slurry service with solids particles.
d) Tightness rates: Allowable leakage rate at full Delta P: ASME/ FCI 70-2 Class VI/V. Tighter shutoff available upon request.
The leakage rate also can be customization from end-user request
e) The metal seated ball valve with standard extension bonnet/stem, whose design base on the different temperature range.
|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, Tunsten Carbide, Chrome Carbide|
|Size Range||1/2”-24” (DN15-DN600)|
|Class Rating||ANSI Class 150-2500 (PN20-PN420)|
|End Connection||Butt Welding, Flanged, Hub|
|Operator||Lever, Worm Gear, Electric, Penumatic, Hydraulic|
|1||Nut||ASTM A194 2H||ASTM A194 2HM||ASTM A194 8M|
|2||Bolt||ASTM A193 B7||ASTM A193 B7M||ASTM A193 B8M|
|3||Bonnet||ASTM A216 WCB||ASTM A216 WCB||ASTM A351 CF8M|
|6||Spring Seat||Stainless Steel||Stainless Steel||Stainless Steel|
|7||Spring||Inconel X-750||Inconel X-750||Inconel X-750|
|8||Seat||A182 F316+Stellite||A182 F316+TCC||A182 F316+Cr3C2|
|9||Ball||A182 F316+Stellite||A182 F316+TCC||A182 F316+Cr3C2|
|10||Body||ASTM A216 WCB||ASTM A216 WCB||ASTM A351 CF8M|
|11||Stem||ASTM A182 F316||ASTM A182 F316||ASTM A182 F316|
|14||Packing Gland||ASTM A216 WCB||ASTM A216 WCB||ASTM A351 CF8M|
|15||Bolt||ASTM A193 B7||ASTM A193 B7M||ASTM A193 B8M|
|16||Nut||ASTM A194 2H||ASTM A194 2HM||ASTM A194 8M|
|17||Lock||Cast Iron||Cast Iron||Cast Iron|
|18||Hand Stop||Carbon Steel||Carbon Steel||Carbon Steel|
|19||Lever||Carbon Steel||Carbon Steel||Carbon Steel|
|20||Gasket||Carbon Steel||Carbon Steel||Carbon Steel|
|21||Stud||ASTM A193 B7||ASTM A193 B7||ASTM A193 B7|
TCC-Tungsten Carbide Coating
Surface Coatings for Metal Seated Ball Valve
Unlike surface treatment methods whereby the existing surface is changed by diffusion, in surface coating an outer layer of new material is generated on the surface. The following types of surface coating methods are available in the Habonim metal seated range; chromium carbide with nickel chrome binder (Cr3C2), tungsten carbide with cobalt binder (WC-Co), and stellite welding.
Hard Coating done by HVOF The Hardness is Over 600 HRC
A cobalt-based stellite coating on valve ball and seat provides excellent mechanical wear resistance, with good corrosion resistance at temperatures up to 538˚C (1000˚F). The Stellite is applied by a Plasma Thermal Arc (PTA) method. Most stellite alloys are cobalt based with elements of Chromium (Cr), Carbon(C), Tungsten (W) and Nickel (Ni). Stellite is broadly used in the pulp and paper industry, as well as in refining applications, such as catalyst handling and hydrocracker processes.
- Liquid + Gaseous media with partially entrained particles / solids (moderate operating cycle)
- Excellent wear resistance / good corrosion resistance
- Wide temperature range
WC-Co (Tungsten Carbide)
Tungsten Carbide with a cobalt binder coating applied by HVOF techniques similar to Cr3C2.WC-Co coating applied mainly to 400 series martensitic stainless steel results with micro-hardness as high as 72HRC. This coating resists cryogenic temperature down to -196˚C (-320˚F) and high temperatures up to 538˚C (1000˚F). WC-Co is a wear resistance anddense coating with chemical resistance to sulphur environment on Nickel based alloy.
- Liquid + Gaseous media with partially entrained particles / solids (high operating cycles)
- Excellent abrasion resistance / good corrosion resistance
Cr3C2 (Chromium Carbide)
Chromium Carbide with nickel chrome binder applied by a High Velocity Oxygen Fuel (HVOF) gun creates a 0.3mm hard outer layer. Cr3C2 coating applied to high strength steels, results in a micro-hardness of up to 68HRC. This coating resists cryogenic temperatures down to -196˚C (-320˚F) and high temperatures up to 815˚C The valve maximum temperature is 650°C. All the temperatures above 650°C refer to the coating or bolts performance only (1500˚F). This multipurpose wear resistance coating is used extensively in the power generation, refining and hot catalyst handling services. Its limitations are in wet sulphur or chloride environments where sulphuric acid can form and attack the coating.