Bellow Seal Gate Valve

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MOQ : 5 Units

Bellow Seal Gate Valve Specification

Connection
Flanged

Sealing
Double Sealing with Bellow and Gland Packing

Structure
Bellow Seal, Rising Stem

Size
1/2 to 12

Material
Stainless Steel / Carbon Steel

Type
Gate Valve with Bellow Seal

Power Source
Manual

Pressure
PN10, PN16, PN25, PN40

Media
Steam, Oil, Gas, Water

Working Temperature
-20C to 425C

Port Size
DN15 to DN300

Surface
Smooth, Anti-corrosive

Shape
Straight

Application
Chemical, Petrochemical, Power Plant, Pharmaceuticals

Stem Material
Stainless Steel

Body Material Grade
WCB, CF8, CF8M

Leakage Class
Class VI (Zero Leakage)

Handwheel Material
Cast Iron

End Connection
RF Flanged

Bonnet Type
Bolted Bonnet

Maintenance
Low, Easy to Replace Bellow

Valve Test
Hydrostatic and Pneumatic

Flow Characteristic
Full Bore, Non-restrictive

Face-to-Face Dimension
As per DIN EN 558-1

Design Standard
DIN, BS, ANSI

Bellow Seal Gate Valve Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About Bellow Seal Gate Valve

Backed by a team of diligent professionals, we are engrossed in supplying the best in class Bellow Seal Gate Valve that is popularly known among our customers owing to its high build quality and performance. The gate valve is capable of enduring impacts, rust, and shear forces, therefore, this does not degrade in quality or become inferior for years. Bellow Seal Gate Valve is typically used to control the flow of fluids, pressure control, and other applications. Clients can approach us to purchase the gate valve at a cost-effective price.

The API 600 Gate Valves is exceptionally sturdy, rugged, and durable, with a reputation for quality, integrity, and long service.

They are designed for tight sealing and ease of operation. The valves are available flanged & butt-weld ends in pressure rating from ASME Class 150 to Class 2500, and in a variety of materials of construction.

Gate Valves are of flexible wedge design, outside screw and yoke, and bolted-bonnet construction. The valves conform to API 600.

Main features :

Bolted body-bonnet design, seal welded & Valves with pressure seal bonnet
Bellows-sealed Gate and Globe valves available
Bolted body-bonnet joints provided with spiral-wound stainless steel gasket and graphite
filler for maximum protection against leaks
Die-formed graphite inner packing rings and braided graphite end rings with Inconel wire
reinforcement and corrosion inhibitor
T-head stem-disc connection of gate valve fully meets strength requirements of API 602 and API 598
Rolled ACME thread on stem for smooth operation
Tapered shoulder on the stem for back seating
Self-aligning type gland assembly with stud-and-nut tightening
Integral hard-faced body seat for globe and check valves
Spring-loaded disc on check valves suitable for no horizontal applications too
Gate and globe valves can be offered with electrical actuators
Austenitic SS forging for body and bonnet of Cryogenic valves, resulting in excellent impact strength, minimal heat loss and resistance to corrosion
Valves can be offered to NACE MR-0175 and other special NACE requirements

Designed for Unmatched Leakage Protection

With double sealing by bellow and gland packing, the gate valve achieves zero leakage (Class VI), making it ideal for critical applications in chemical and petrochemical sectors. Each valve undergoes rigorous hydrostatic and pneumatic testing to ensure reliability and high safety standards in operation.

Precision Engineering with Global Standards

Manufactured in accordance with DIN, BS, and ANSI, the valve suits international requirements. Available with RF flanged connections, face-to-face dimensions per DIN EN 558-1, and port sizes from DN15 to DN300 (1/2 to 12 inches), it integrates seamlessly into various piping systems.

Low Maintenance and Easy Replacement

The valve's straight shape and full bore design mean minimal restriction to flow and easy servicing. The replaceable bellow seal and smooth anti-corrosive surface reduce downtime, ensuring reliable operation over prolonged periods and decreasing overall maintenance costs.

FAQ's of Bellow Seal Gate Valve:

Q: How is zero leakage achieved in this bellow seal gate valve?

A: Zero leakage is attained through a double sealing system, utilizing both a metallic bellow seal and gland packing. This design meets Leakage Class VI standards, ensuring absolute fluid containment even in critical or hazardous processes.

Q: What is the process for replacing the bellow seal in the valve?

A: The bellow seal is easily replaceable without disassembling the entire valve. After isolating the valve from the system, technicians can access the bolted bonnet, remove it, and install the new bellow seal, which keeps maintenance time and costs to a minimum.

Q: Where can this gate valve be effectively deployed?

A: It is suitable for chemical, petrochemical, pharmaceutical, and power plant industries in applications involving steam, oil, gas, and water. The valve's robust construction and corrosion resistance make it ideal for hostile environments requiring safe, reliable isolation.

Q: What materials are used for critical valve components?

A: The body is available in WCB, CF8, or CF8M to suit different media and operating conditions. The rising stem is made from stainless steel for durability, while the handwheel is composed of cast iron, ensuring comfortable manual operation.

Q: When should hydrostatic and pneumatic testing be performed for this valve?

A: Hydrostatic and pneumatic tests are carried out during production and before shipment. These tests verify valve integrity and performance, ensuring no leakage and confirming the valve meets stringent international standards.

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