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SQK A351 CN7M Alloy 20 Ball Valve

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MOQ : 5 Units

SQK A351 CN7M Alloy 20 Ball Valve Specification

Channels
2

Caliber
Full Bore

Connection
Flanged

Pressure
150# & 300#

Structure
Ball

Material
A351 CN7M (Alloy 20)

Power
Manual

Media
Water, Oil, Gas, Chemicals

Temperature of Media
-29C to 200C

Port Size
1/2 to 12 Inch

Flange
ANSI B16.5 150#/300#

Finish
Shot Blasted & Pickled

Application
Industrial, Chemical, Petrochemical, Pharmaceutical

Seat Material
PTFE / Metal / Other Custom Options

Testing Standard
API 598 / EN 12266

Ball Material
A351 CN7M Alloy 20

Stem Material
A351 CN7M / SS316 / Custom

Pressure Rating
PN16, PN25, PN40, PN64

Operation
Lever / Gear / Pneumatic / Electric Actuator

Face to Face Dimension
ASME B16.10 / DIN

Packing
Graphite / PTFE

Corrosion Resistance
Excellent for Sulphuric Acid & Chloride Media

Body Type
Split Body / Welded Body

Design Standard
API 6D / ASME B16.34

Mounting Pad
ISO 5211

Size Range
DN15 to DN300

Leakage Class
Class VI

End Type
Flanged, Screwed, Welded

Surface Treatment
Passivated / Pickled / Painted

Fire Safe Design
Available on Request

Anti-static Device
Optional

SQK A351 CN7M Alloy 20 Ball Valve Trade Information

Minimum Order Quantity
5 Units

Supply Ability
200 Units Per Month

Delivery Time
7 Days

About SQK A351 CN7M Alloy 20 Ball Valve

SQK A351 CN7M Alloy 20 Ball Valve

Size	2" to 56" (50 mm to 1400 mm)
ASME Class	Class 150 to 2500
Design Standard	API 6D

Main Feature

· Trunnion-mounted Ball Valve design complies to API 6D

· Wide portfolio of Side-entry and Top-entry designs

· Fugitive emissions

· Soft and Metal seated valves complies to ISO 15848-1, Class AH and BH

· Fire safe design - to API 607 and API 6FACE Marking

· Meets requirements of Pressure Equipment Directive 2014/68/EU,

· Pneumatic shell test conducted at 1.1 times rated pressure to check shell integrity, when required · Double block and bleed (DBB) feature

· Valves are designed and tested for automatic cavity relief

· Anti-blowout stem design

· Coil springs used for consistent seat loading and lower operating torque

· Lip seals provided for low temperature services

· Primary O ring and Secondary graphite (in 3 stage stem, thrust washer is primary)

· Wide portfolio of Side-entry and Top-entry designs

· Options: Buried service, Cryogenic

· Offered with Electric, Pneumatic and Hydraulic Actuators

· In-house Tests Capabilities

Exceptional Corrosion Resistance

This ball valve is crafted from A351 CN7M (Alloy 20), renowned for resisting corrosion in aggressive chemical environments such as those containing sulphuric acid and chlorides. Its surface treatment optionspassivated, pickled, or paintedfurther enhance durability and lifespan. The valve is ideal for demanding industries requiring stable, long-lasting flow control.

Adaptable Design & Operation

With options for split or welded body, flanged, screwed, or welded connections, and a variety of seats (PTFE, metal, or custom), this valve caters to diverse process requirements. Actuation choices include manual lever, gear, pneumatic, or electric actuator, all supported by an ISO 5211 mounting pad. These features make installation and automation straightforward and flexible.

Rigorous Standards & Quality Assurance

Designed according to API 6D and ASME B16.34, and tested as per API 598 or EN 12266, this ball valve ensures reliable performance and safety. Premium features such as fire safe design, anti-static device, graphite or PTFE packing, and high leakage integrity (Class VI) suit it for critical service conditions in various industries.

FAQs of SQK A351 CN7M Alloy 20 Ball Valve:

Q: How does the SQK A351 CN7M Alloy 20 Ball Valve ensure compatibility with corrosive media?

A: The valve is constructed from A351 CN7M (Alloy 20), which is engineered for superior resistance to corrosion by sulphuric acid, chloride solutions, and harsh industrial chemicals, making it widely suitable for chemical, petrochemical, and pharmaceutical applications.

Q: What seat and end connection options are available for customization?

A: You can choose seat materials such as PTFE, metal, or other custom options depending on your process needs. End connections include flanged, screwed, and welded types, offering flexibility for integration with existing pipelines.

Q: When should I specify a fire safe design or anti-static device?

A: Fire safe design and anti-static features are recommended when the valve will be exposed to flammable or hazardous environments. These options enhance safety by preventing leakage and static discharge during abnormal conditions.

Q: Where can this ball valve be applied in industrial processes?

A: The SQK A351 CN7M Alloy 20 Ball Valve is suitable for use in water, oil, gas, and chemical processing systems, making it ideal for industrial, chemical, petrochemical, and pharmaceutical plants.

Q: What is the process for installation and automation?

A: Installation is simplified by following standard face-to-face dimensions (ASME B16.10 / DIN) and flanges (ANSI B16.5). The valve supports ISO 5211 mounting pads, allowing easy integration with manual levers, gear operators, or automation via pneumatic or electric actuators.

Q: How does this valve benefit operational reliability and maintenance?

A: With excellent corrosion resistance, high leakage integrity (Class VI), and robust construction, this valve minimizes maintenance needs and downtime. Options for packing, surface treatment, and stem material allow further tailoring to operational requirements.

Q: What size range and pressure ratings are available for this valve?

A: The valve comes in port sizes ranging from 1/2 to 12 (DN15 to DN300) and is available in pressure ratings PN16, PN25, PN40, PN64, and ANSI 150#/300#, supporting a wide array of industrial flow requirements.

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