Dequn arched cast iron gate uses a convex curved leaf with side guide lugs and a central stem mount, designed for higher water pressure where arched geometry improves load distribution compared with a flat leaf.
Technical Specifications
| Product Name | Arched Cast Iron Gate with Side Guide Lugs |
| Product Category | Cast iron sluice / arched penstock gate |
| Leaf Shape | Convex arched (curved) leaf |
| Main Material | Gray cast iron or ductile iron (project based) |
| Guide Features | Integrated side guide lugs for frame/track travel |
| Actuator Mount | Central double-lug stem / hoist mounting point |
| Seal Type | Hard seal or rubber seal as specified |
| Working Head | Higher head applications within rated design |
| Surface Protection | Heavy anti-corrosion coating (commonly red industrial finish) |
| Typical Applications | Irrigation regulators, culverts, higher-pressure drainage openings |
| Quotation Mode | Price on request after size and head confirmation |
Core selling points
- Arched pressure resistance: Curved leaf helps distribute water load across the section.
- Guided travel: Side lugs keep the leaf aligned in the frame under load.
- Clear hoist interface: Central mounting point connects to a screw or electric hoist stem.
- Cast durability: Thick cast body suits humid irrigation and drainage environments when correctly rated.
- Custom sizing: Opening dimensions and seal type follow project drawings.
Who this product is for
Buyers who need better pressure behavior than a flat small gate, but still prefer cast iron material for sealing durability and maintenance economy on medium openings.
Design and manufacturing focus
The leaf is cast as an arched plate with a reinforced perimeter. Guide lugs on both long sides engage the frame. After casting and machining of sealing faces, the gate is coated and packed with face protection for export.
Compatibility and accessories
- Screw hoist or manual-electric hoist matched to stem travel
- Gate frame / embedded parts for the civil opening
- Seal strips and stem nut spares
- Optional wall-mounted or channel-mounted installation layouts
FAQ
Q1: Why choose an arched leaf instead of a flat leaf?
A: The curve improves structural behavior under higher water pressure for many medium openings. Final choice still depends on design head and drawing review.
Q2: Is this the same as a flap valve?
A: No. This is a guided sliding/operating sluice leaf with a stem mount, not an automatic backflow flap.
Q3: What iron grade do you recommend?
A: HT200/HT250 gray iron is common; QT450 ductile iron is preferred when toughness or handling risk is higher.
Q4: Can it be used for sewage water?
A: Yes when material, seal, and coating are selected for the medium. Confirm water chemistry in the inquiry.
Q5: How do I confirm the size?
A: Provide clear width × height, design head, and sealing direction. Do not order by photo alone.
Q6: What causes sealing failure after installation?
A: Uneven foundation, damaged machined faces, debris on seats, or incorrect stem alignment are the most common causes.
Q7: Do you supply the frame together?
A: Yes. Leaf and frame can be supplied as a matched set.
Q8: What should be included in the first RFQ?
A: Size, head, medium, destination country, quantity, and preferred hoist type.
How to inquire
Send drawings or size table, design head, and destination port to Export / International Sales. Tel: +86 13903193904.
