Stainless Steel Gate Valve - API 600, DIN 3352, DN50 to DN600
Tengs Valve is a professional Stainless Steel Gate Valve supplier, offering API 600, API 6D, and DIN 3352 standards with rising stem OS&Y design and cast stainless steel flexible wedge industrial gate valves. Various materials are available, including martensitic, austenitic, and duplex (ferritic-austenitic) stainless steel for gate valve body and trim. Valve size DN50 to DN600 (2″ to 24″), valve pressure Class 150Lb to Class 2500Lb, PN10 to PN100. Ideal for chemical, petrochemical, offshore, desalination, and corrosive media pipeline systems.
Handwheel, gear operated, bare stem, or electric actuator gate valves are available.
Cast Stainless Steel Gate Valve Specifications
• Design Standards: API 600, API 6D, DIN 3352
• Types of End Connections: Flanged, Butt Weld
• Types of Wedge: Flexible Wedge, Solid Wedge
• Types of Bonnet: Bolted Bonnet, Welded Bonnet, Pressure Seal Bonnet
• Types of Stem: Rising Stem, Non-Rising Stem
• Types of Materials: Martensitic, Austenitic, Ferritic-Austenitic Stainless Steel (A351-CF8, CF8M, CF3, CF3M, Duplex Stainless Steel)
• Types of Trim: 410, 304, 316, Hardfaced, Full Hardfaced, Suit Different Service Conditions
• Types of Drive: Handwheel, Bevel Gear, Electric Actuator, Bare Stem
• Sour Condition: NACE MR 0175
• Special Design: Bypass Valves Available
✓ Available in CF8, CF8M, CF3, CF3M, and duplex stainless steel for different corrosion resistance requirements
Main Parts for Stainless Steel Gate Valve
| Part Name | Material | |||
|---|---|---|---|---|
| A351-CF8(M) | A351-CF3(M) | A890/A995-4A | A890/A995-5A | |
| Body | A351-CF8(M) | A351-CF3(M) | A890/A995-4A | A890/A995-5A |
| Bonnet | A351-CF8(M) | A351-CF3(M) | A890/A995-4A | A890/A995-5A |
| Wedge | A351-CF8(M) | A351-CF3(M) | A890/A995-4A | A890/A995-5A |
| Seat | Integral | Integral | Integral | Integral |
| Stem | F304 / F316 | F304L / F316L | F51 | F53 |
| Bolts / Nuts | B8(M) / 8(M) | B8(M) / 8(M) | B8M / 8M | B8M / 8M |
Reference: API 600, API 6D, DIN 3352. Materials may vary by model and pressure rating. Contact us for confirmed material certificate.
See Industrial Gate Valve for more information.
Stainless Steel Gate Valve Dimensions
Typical Applications of Stainless Steel Gate Valve
• Chemical processing: corrosive media handling where carbon steel is not sufficient, with CF8 / CF8M / CF3 / CF3M options.
• Petrochemical plants: process lines requiring corrosion resistance and full bore isolation.
• Offshore and marine: duplex stainless steel 4A / 5A resists chloride stress corrosion cracking in seawater environments.
• Desalination plants: excellent resistance to chloride pitting and crevice corrosion with duplex grades.
• Food and pharmaceutical: hygienic service with clean stainless steel surfaces.
• Water treatment: corrosion-resistant isolation in water and wastewater systems.
FAQ - Stainless Steel Gate Valve
Q1: What is a stainless steel gate valve?
A: A stainless steel gate valve is a linear motion valve designed for on-off service in pipelines handling corrosive media. The body, bonnet, and wedge are made of cast stainless steel (CF8, CF8M, CF3, CF3M, or duplex), providing superior corrosion resistance compared to carbon steel gate valves. It is manufactured to API 600 / API 6D / DIN 3352.
Q2: What is the difference between CF8, CF8M, CF3, and CF3M?
A: CF8 is the cast equivalent of 304 stainless steel, CF8M is the cast equivalent of 316 stainless steel with molybdenum for improved corrosion resistance, CF3 is the low-carbon version of CF8 (304L equivalent), and CF3M is the low-carbon version of CF8M (316L equivalent). CF3 / CF3M are preferred for welded construction and applications requiring resistance to intergranular corrosion.
Q3: What is duplex stainless steel and when should it be used?
A: Duplex stainless steel (A890/A995-4A or 5A) has a ferritic-austenitic microstructure, offering higher strength and superior resistance to chloride stress corrosion cracking and pitting compared to standard austenitic grades. It is commonly used in offshore, desalination, and chemical processing applications where seawater or high-chloride media are present.
Q4: What are the available pressure ratings and sizes?
A: Stainless steel gate valves are available in sizes DN50 to DN600 (2″ to 24″), with pressure ratings from Class 150Lb to Class 2500Lb and PN10 to PN100. Other sizes and pressure ratings are available on request.
Q5: What is the difference between stainless steel and carbon steel gate valves?
A: Stainless steel gate valves offer superior corrosion resistance and are suitable for chemical, offshore, and food-grade service. Carbon steel gate valves are more economical and suitable for general water, oil, gas, and petrochemical service where corrosion is not a major concern. Material selection depends on the specific media, temperature, and environment.
Q6: What actuation options and special designs are available?
A: Actuation options include manual handwheel, bevel gear, electric actuator, and bare stem. Special designs include NACE MR 0175 compliance for sour service and bypass valve design. Other options are available on request.
Get a Fast Quote for Stainless Steel Gate Valve
Send us your size, pressure rating, material grade (CF8 / CF8M / CF3 / CF3M / 4A / 5A), end connection, actuation type, and quantity. Our team will reply within 24 hours with price, drawing, and delivery time.
Email: sales@tengsvalve.com
Website: Request a Quote Online
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