12″ Knife Gate Valve Corrosion Resistant Tight Seal Light Operation Long Service Life

12″ Knife Gate Valve

Material options include ductile iron, carbon steel, 304/316 stainless steel and special alloys. Seat materials are available in EPDM, Viton, PTFE, etc., to match different media requirements.

The fixed specification is 12 inches (DN300), with connection types supporting flanged, wafer and lug designs for easy installation and maintenance.

Actuation methods cover manual, electric and pneumatic options, adapting to both automated and manual operation scenarios. Standard pressure ratings are PN10/PN16 (Class 150 LB), and the DN300 size offers a maximum operating pressure of 7bar, suitable for most industrial pipelines.

Core Features of 12″ Knife Gate Valve

Adopting a beveled knife gate design, it features media shearing capability to prevent clogging. The full-port structure reduces pressure drop and improves flow efficiency. Built-in guide claws in the valve body fix the gate to ensure tight sealing. Replaceable side-mounted seats lower maintenance costs, while the multi-seal design minimizes leakage risks. It operates within a temperature range of -29℃ to 538℃, compatible with corrosive, viscous and particle-containing media.

Key Specifications of 12″ Knife Gate Valve

Certification & Standards of COVALVE 12″ Knife Gate Valve

Strictly compliant with MSS SP-81 design and manufacturing standards, it meets ASME B16.5 and EN 1092-1 flange standards, and has passed API 598 and ISO 5208 pressure test certifications. It also adheres to international specifications such as API 600, ISO 10434 and BS 1414, ensuring product quality compatibility with global markets.

Q: What media is the 12″ knife gate valve suitable for?

• A: It works with pulp, sewage, coal slurry, chemicals, foodstuffs and abrasive/viscous media, depending on material selection.

Q: Can the 12″ knife gate valve be used for flow regulation?

• A: It is designed for full open/close operation. Throttling is not recommended unless specifically customized.

• A: With corrosion-resistant materials and replaceable seats, it typically serves 5-8 years under normal working conditions.

Q: Are installation accessories included with the 12″ knife gate valve?

• A: Standard packages include necessary gaskets and fasteners; custom accessories can be provided upon request.

• A: Yes, it holds global certifications and complies with major industrial standards for cross-border procurement.

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