Straight-Through Channel DIN Standard Cast Iron Knife Gate Valve Z73X

• Customization: Available
• Standard: DIN
• Thread Position of Valve Rod: Outside Gate Valve
• Model NO.: DN50-DN600
• Pressure: Ordinary Temperature
• Connection Form: Wafer
• Actuator: Manual
• Transport Package: Wooden Box
• Specification: DN50-DN600
• Trademark: YAOFA
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000piece /Year
• Package Size: 1100.00cm * 1000.00cm * 1000.00cm
• Package Gross Weight: 5.000kg

Product Description

Company Profile

Specification

Overview:
Definition: DIN standard cast iron knife gate valve refers to a type of knife gate valve that complies with German Industrial Standards (DIN standards), with cast iron as the main material. It is primarily used to control the on-off of fluid in pipelines and is widely applied in industries such as chemical engineering, papermaking, mining, and food processing.

Structural Features:

Equipped with a knife-shaped gate plate, the bottom of which has a blade-like beveled cut. This design allows it to easily cut through and seal media containing solid particles or fibers, effectively preventing valve blockage caused by solid particles in the media.
Full-round straight-through channel design ensures no residue accumulation or jamming, enabling smooth media flow.
Image
DIN Standard Cast Iron Knife Gate Valve
Working Principle
Opening Process: Driven by manual or automatic devices, the gate plate rises, allowing fluid to pass through the valve freely. This achieves the open state and conducts media in the pipeline.

Closing Process: When closing the valve, the gate plate descends and closely fits the valve seat. The sealing effect between the gate plate and the valve seat cuts off fluid flow, preventing media from passing through.

Standard	DIN 3352 (Gate valves for general industrial use), DIN 2501 (Flange dimensions)
Material of Body	Ductile Cast Iron (GGG40) / Gray Cast Iron (HT200)
Material of Gate	Ductile Cast Iron with Nitrided Surface / Stainless Steel (1.4301)
Seat Material	NBR (Nitrile Rubber), EPDM, PTFE
Nominal Diameter (DN)	DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100 (up to larger sizes)
Nominal Pressure (PN)	PN10, PN16
Operating Temperature	-10°C to +80°C (NBR seat); -20°C to +120°C (EPDM seat); -20°C to +180°C (PTFE seat)
Flow Medium	Slurries, viscous fluids, wastewater, non-corrosive liquids/gases
Connection Type	Flanged (DIN PN10/PN16), Wafer-type (for compact installation)
Operating Mode	Manual (Handwheel), Gear-operated (for larger DN)
Leakage Class	API 598 (Shell test: 0 leakage; Seat test: ≤0.15×DN mm³/min)
Test Standard	DIN 3230 (Pressure testing of valves)

After Sales Service

Standard Warranty: 12 months or 2,000 operating hours (whichever comes first).
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.

FAQ

Q: What’s the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.

Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.

Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.