Metal Seated Ball Valve
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.
Coating options: Chrome Carbide, Tungsten Carbide, WC, Stellite etc. Metal Seated Ball Valves are ideal for the refining, power generation, and oil and gas industries.
Class IV is also known as metal to metal. It is the kind of leakage rate you can expect from a valve with a metal shut-off disc and metal seat. Relia Metal Seated Ball Valve is bubble tight off with Zero leakage.
Metal Seated Ball Valves are designed and manufactured for abrasive service or high temperatures service.
- Oil & Gas
- Refining / Petrochemical
- Chemical Process
- Power Generation
- Pulp & Paper
- Mining
Leakage Rate
Zero leakage (MUCH higher level than ANSI/FCI 70-2 Class V shut-off, Class VI).
Product Range
| Type | Floating Ball/Trunnion Mounted Ball |
| Body Material | Carbon Steel, Low Temperature Carbon Steel, Stainless Steel, Duplex Steel |
| Seat | 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 |
Features
- Bi-directional Sealfor Trunnion Mounted Metal Seated Ball Valve
- Fire safe
- Spring-loaded seats maintain close contact with the ball ensuring tight sealing even at low pressures.
- Rigid one piece stem extension for extreme applications
Typical Drawings
Materil List
| No. | Part Name | WCB/F316+Stellite | LCB/F316+TCC | CF8M/F316+Cr3C2 |
| 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 |
| 4 | Gasket | SS304+Graphite | SS316+Graphite | SS316+Graphite |
| 5 | Seat Seal | Graphite | Graphite | Graphite |
| 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 |
| 12 | Thrust Washer | SS304+Graphite | SS316+Graphite | SS304+Graphite |
| 13 | Packing | Graphite | Graphite | Graphite |
| 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 |
Remarks:
TCC-Tungsten Carbide Coating
Cr3C2-Chromium Carbide
Surface Coatings
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
Stellite
A cobalt-based stellite coating 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.
Applications:
- 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.
Applications:
- 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.
Coating Testing
- Bond Strength Tensile Test
- Shear Strength Tensile Test
- Macro Hardness Rockwell Test
- Porosity Determination
- Bond Line Contamination
- Abrasion Wear Testing
