Gate valves are typically used in applications where a full flow with minimal pressure drop is desired, as they provide a straight-through passage when fully open. However, they are not recommended for regulating flow as they are designed for either fully opened or fully closed positions.
Stainless steel gate valves come in various sizes, pressure ratings, and designs to meet the specific requirements of different industries and applications. They are widely used in pipelines where the flow needs to be shut off completely or where infrequent operation is required.
Stainless steel gate valves offer several advantages compared to gate valves made from other materials:
Corrosion Resistance: Stainless steel is highly resistant to corrosion, making it ideal for use in environments where the valve may be exposed to corrosive substances or harsh conditions, such as chemical processing plants, marine applications, or offshore platforms.
Durability: Stainless steel is known for its strength and durability, ensuring the valve can withstand high pressure and temperature conditions without deforming or failing prematurely. This makes stainless steel gate valves suitable for demanding industrial applications.
Hygienic Properties: Stainless steel is easy to clean and maintain, making it suitable for applications where cleanliness and hygiene are essential, such as in food processing, pharmaceutical, and sanitary applications.
Wide Temperature Range: Stainless steel gate valves can operate effectively over a wide temperature range, from cryogenic temperatures to high temperatures, without compromising performance or integrity.
A stainless steel gate valve operates similarly to other valves. To open the valve, turn the handwheel, which moves the gate up or down on the stem via the threads. A stainless steel gate valve requires more than one 360° turn to open or close the valve fully. When the stainless steel gate is lifted, it opens the inlet to the outlet allowing an unobstructed passageway for the media to flow. When the stainless steel gate is lowered, it closes and blocks the media flow.
Applications of Stainless Steel Gate Valves
Because of its resilience, a stainless steel gate valve is used in an array of industrial applications. These include:
Oil and gas industry;
Chemical and pharmaceuticals;
Marine;
Water and wastewater treatment;
Manufacturing industries.
Material of Stainless Steel Gate Valve
| Number |
Name |
Material |
| 1 |
Body |
ASTM A351 CF8M |
| 2 |
Disc |
ASTM A351 CF8M |
| 3 |
Stem |
ASTM A276 316 |
| 4 |
Bonnet |
ASTM A351 CF8M |
| 5 |
Body Gasket |
PTFE |
| 6 |
Snap Ring |
ASTM A276 316 |
| 7 |
Washer |
ASTM A276 316 |
| 8 |
Packing |
PTFE |
| 9 |
Packing Sleeve |
ASTM A276 304 |
| 10 |
Packing Gland |
ASTM A351 CF8M |
| 11 |
Hand Wheel |
Aluminium Alloy |
| 12 |
Nut |
ASTM A194-B8M |
| 13 |
Plain Washer |
ASTM A276 304 |
| Size |
DN |
L |
H |
D |
| ½" |
15 |
55 |
95 |
62 |
| ¾" |
20 |
61 |
100 |
72 |
| 1" |
25 |
68 |
105 |
72 |
| 1 ¼" |
32 |
72 |
125 |
78 |
| 1 ½" |
40 |
79 |
145 |
95 |
| 2" |
50 |
87 |
165 |
95 |
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