Flowjet Valves : Industrial Valves Manufacutrer
Cast Steel Gate Valve
Flowjet have a wide range of GATE VALVES in variety of types, sizes, pressure ratings and materials, with wafer type, screwed, welded or flanged connections. Flowjet Manufacture Gate valves in every size ranging from the smallest to the largest size Gate Valve name is derived from the operation of the Gate valve.
The Valve Acts like a Gate to stop or allow the flow through the valve. The valve can be opened by lifting the wedge out of the path of the flow Gate valves are actually designed for closing & opening full , so they are not suitable for the Throttling purpose. When the Gate valve is fully open, there is no Obstruction in the Flow path, resulting in very low pressure drop, & they are often suitable for the Hot Tapping & Pigging.
Gate Valves are actually designed for use with the flow of liquids and Gases but there are variation to cope with the specific requirements.
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For example, one problem with wedge gate valves in steam service is that when the valve is closed and steam is brought into the system, the metal wedge expands and can get stuck, making opening the valve difficult or impossible.
Knife-gate valves are used when deposit may block a normal wedge gate. The gate is a narrow plate with a shaped edge to cut through solids. They are ideal for applications with a high suspension of solids or fibrous content such as powders, slurry, ash and pulp. Care should be taken when specifying knife gate valves to state whether flow is uni- or bi-directional.
SIZE RATING
Rating: 150#
Size: 1000MM Or 42Inches
Rating: 300#
Size: 600MM Or 24Inches
Rating: 600#
Size: 500MM Or 20Inches
Rating: 900#
Size: 400MM Or 16Inches
Rating: 1500#
Size: 300MM Or 12Inches
Rating: 2500#
Size: 200MM Or 8Inches
| SIZE AND RATINGS | |
|---|---|
| VARIANTS |
|
| MANUFACTURING STANDARDS | |
|---|---|
| MFG DESIGN | API-600, BS1414,ASME B16.34 |
| FACE TO FACE DIMENSION As Per | ASME B16.10 / ISO 5752/ BS 2080 |
| END CONNECTION | Flange & Butt Weld |
KEY FEATURES
- Anti-frictional Ball bearings in higher sizes and classes.
- The strength of Stem to Gate connection is stronger than the strength of the Stem at the root of the operating thread
- Outside screw and yoke construction
- Valves with backseat arrangement
- Bi-directional shut-off
- Gland is of self aligning
- Deep stuffing box
- Low Pressure Drop & Lower Erosion
- The Body to Bonnet is male and female joint and ring joint is used in higher classes
| MATERIAL | ||
|---|---|---|
| S.NO. | PART NAME | MATERIAL OPTION |
| 1. | BODY&BONNET | ASTM A 216 Gr WCB/WCA/WCC/ASTM A 217 Gr WC1/WC6/WC9/C5/C12A/CA15/ASTM A 351 Gr CF8/CF8M/CF3/CF3M/CF8C/CF10/CK20/HK30/ASTM A 352 Gr LCB/LCC/LCA/CA6NM/ASTM B148 C95500/C95800/C95400 |
| 2. | WEDGE | 13%CR/STELLITED/ASTM A 351 Gr CF8/CF8M/CF3/CF3M/ASTM B148/C95500/95800/95400 |
| 3. | stem | ASTM A 479 TYPE SS410,SS304,SS316,SS304L,SS316L/FS A 182 F304/F316/F304L/F316L |
| 4. | seat ring | 13%CR/STELLITED/ASTM A 351 Gr CF8/CF8M/CF3/CF3M/ASTM B148/C95500/95800/95400 |
| 5. | BACK SEAT | ASTM A 479 TYPE SS410,SS304,SS316,SS304L,SS316L/FS A 182 F304/F316/F304L/F316L |
| 6. | GLAND BUSH | ASTM A 479 TYPE SS410,SS304,SS316,SS304L,SS316L/FS A 182 F304/F316/F304L/F316L |
| 7. | Gasket | SS316 Sairal Wound Grafite Filer |
| 8. | PACKING | 100% Grafite |
| 9. | Gland flange | A105/CARBON STEEL |
| 10. | YOKE NUT | A105/CARBON STEEL/GUN METAL |
| 11. | HAND WHEEL | SG IRON/CARBON STEEL |
| 12. | HAND WHEEL NUT | MS/CARBON STEEL |
| 13. | BODY&BONNET JOINT STUD | ASTM A 193 Gr B5/B6/B7/B7M/B16/B8/B8A/B8C/B8M/B8MN |
| 14. | BODY&BONNET JOINT NUT | ASTM A 194 Gr 2H/2HM/6F/7M/8/8A/8CA/8M/8MA/8F/8N/8MNA/ |
| 15. | EYE BOLT | A105/A182 |
| 16. | EYE BOLT NUT | ASTM A 194 Gr 2H/8/8M |
| 17. | CROSS BOLT | ASTM A 193 Gr B7/B7M/B8/B8M |
| 18. | CROSS BOLT NUT | ASTM A 194 Gr 2H/8/8M |
| 19. | YOKE SLEEVE | SG IRON/D2/GUN METAL |
