Cast Steel Floating Ball Valve
1. Product Description
Cast steel floating ball valves refer to floating ball valves that have cast steel valve body. These valves are mainly designed for low pressure services with a flexible temperature range. Metals Valve provides a wide variety of this series of ball valves manufactured to API, ASME, DIN, JIS and NOSOK standards. They are usually furnished with flanged end connection. Due to the low pressure ratings and small sizes, the torque to open or close the valve is not big hence manual operation(either lever or gear) is applied. Generally speaking, the cast steel floating ball valve is mainly used for on-off applications as well as minor throttling purpose.
2. Specifications of Cast Steel Floating Ball Valves
Design Features
Floating type ball, cast steel, split body(two piece or three piece) / uni-body(one piece, integral). Side entry, end entry or top entry, full port(full bore) / reduced port(reduced bore), RF, RTJ or BW. Lever or gear operated, fire safe design, blow-out proof stem, low emission control and anti-static. Size range: 1/2″(DN15) to 12″(DN300); Pressure ratings: Class 150 ~ Class 300(PN16 ~ PN40). See the weight & dimension specifications for cast steel floating ball valves manufactured with two-piece split body: Class 150 and Class 300.
ITEMS | STANDARDS |
---|---|
Design & Manufacture | API 6D, API 608, ASME B16.34, BS 5351, ISO 17292, MSS SP 72 |
End Connection | Flanged - ASME B16.5, BW - ASME B16.25 |
Fire Safe | API 607, API 6FA, ISO 10497 |
Inspection and Testing | API 598 |
Corrosion Resistance | NACE MR0175 |
Top Mount Flange | ISO 5211 |
Material Specifications
According to the industrial applications to which the cast floating ball valve is applied, the body and trims can be selected from a variety of materials.
Item | Valve Part | Standard Material | Stainless Steel | Sour Service | Low-Temp. Service |
---|---|---|---|---|---|
1 | Body | ASTM A216 WCB | ASTM A351 CF8M | ASTM A216 WCB | ASTM A352 LCB |
2 | Bonnet | ASTM A216 WCB | ASTM A351 CF8M | ASTM A216 WCB | ASTM A352 LCB |
3 | Ball | ASTM A105N/ ENP | ASTM A182 F316 | ASTM A105N/ ENP | ASTM A182 F316 |
4 | Lever | Carbon Steel | Carbon Steel | Carbon Steel | Carbon Steel |
5 | Gland Flange | ASTM A216 WCB | ASTM A351 CF8M | ASTM A216 WCB | ASTM A352 LCB |
6 | Seat Ring | PTFE | PTFE | PTFE | PTFE |
7 | Stem | ASTM A182 F6a | ASTM A182 F316 | ASTM A182 F6a | ASTM A182 F316 |
8 | Gland | ASTM A276 420 | ASTM A276 316 | ASTM A276 420 | ASTM A276 316 |
9 | Gasket | SS316 + Graphite | SS316 + Graphite | SS316 + Graphite | SS316 + Graphite |
10 | Packing Set | Graphite | Graphite | Graphite | Graphite |
11 | Thrust Washer | PTFE | PTFE | PTFE | PTFE |
12 | Stud | ASTM A193 B7 | ASTM A193 B8 | ASTM A193 B7M | ASTM A320 L7M |
13 | Nut | ASTM A194 2H | ASTM A194 8 | ASTM A194 2HM | ASTM A194 7M |
14 | Bolt | ASTM A193 B7 | ASTM A193 B8 | ASTM A193 B7M | ASTM A320 L7M |
15 | Anti-Static | S.S | S.S | S.S | S.S |
16 | Stop Plate | Carbon Steel | Carbon Steel | Carbon Steel | Carbon Steel |
17 | Retainer | Carbon Steel | S.S | Carbon Steel | S.S |
18 | Washer | Carbon Steel | S.S | Carbon Steel | S.S |
19 | Bolt | Carbon Steel | S.S | Carbon Steel | S.S |