Al Dossary have a wide range of GATE VALVES in variety of types, sizes, pressure ratings and materials, with wafer type, screwed, welded or flanged connections. Al Dossary 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.
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.
There are different varieties of gate valves available and the Cast Steel Gate valve is one of them. The reason being this name is, that this particular type of gate valve is made with Cast Steel using a special type of mechanism. When you’re dealing with high-pressure installations like gas, oil, oil vapour, steam etc. Cast Steel Valve is the only solution you can rely on which operates with straight-through ports. We as one of the best Cast steel gate valve manufacturers assure you that our valves are best suited for industrial requirements and it efficiently regulates the turbulence of the liquid flow ensuring minimum erosion. Al Dossary Valve produces only certified quality valves that are going to fulfil all of your requirements.
We, Al Dossary Valves are specialized in all kinds of valves including various quality gate valves. Our expert team is rigorously working to make new innovations in valve manufacturing. The Cast Steel Valves we make are of number one quality that comes in all sizes required as per industrial standard. We are one of the only cast steel valve manufacturers who can offer you the most competitive price in the market. Our raw materials came from the finest sources that are reasonable in price. This is the reason why we can supply you with our products at the best prices. All the products have a mirror finish and the seat faces are hard-faced for tough sealing performances. You can choose from a wide range of products and definitely going to get the exact product of your demand.
Al Dossary Valves have a proficient team of workers and engineers who are working day and night to provide you with the exact quality Cast Steel Gate Valves of your need. We have the latest techniques and machinery to support all kinds and sizes of Cast Valve productions. Our team does market surveys to learn about the requirements of clients. So we know what you want from us and you will be able to see our dedication and hard work in each piece of gate valves of cast steel we produce. When it comes to quality, each piece of our valves goes through a tough in-house quality check process where only the best quality products are approved. The best part of our valves of cast steel is its sealing properties and durability which makes us the best supplier in the market.
We proudly announce ourselves as finely crafted Cast Steel Gate Valves suppliers from Kingdom of Saudi Arabia. The quality and wide range of products we can offer you are hardly available anywhere else.
We use our 30 years of knowledge into crafting each and every product in our catalogue. As one of the best Cast Steel Gate Valves manufacturers in Kingdom of Saudi Arabia, our experts will definitely meet your expectation level. Our quality expert team is engaged in looking after the quality standard of in-house production as well as we allow third-party inspections too. So, you can rest assured with the quality of each piece of gate valve we will supply you. For your query and support, we have our experts over the phone to assist you with instant solutions.
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 |
1. Anti-frictional Ball bearings in higher sizes and classes.
2. The strength of Stem to Gate connection is stronger than the strength of the Stem at the root of the operating thread
3. Outside screw and yoke construction
4. Valves with backseat arrangement
5. Bi-directional shut-off
6. Gland is of self aligning
7. Deep stuffing box
8. Low Pressure Drop & Lower Erosion
9. 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 |