Manhole Covers
Anti-Subsidence Adjustable Manhole Cover
Anti-subsidence adjustable manhole cover system with height-adjustable frame. Prevents road surface damage from ground settlement. Height adjustment range 50–150mm. For busy traffic roads and highway applications.
Inquire NowSpecifications
| Model | Size / specification | Notes |
|---|---|---|
| DN600/700 | Clear opening DN600, DN700 | D400 load class; height adjustment 50–150 mm; patented anti-subsidence design |
Frequently Asked Questions
What is the Anti-Subsidence Adjustable Manhole Cover used for?
The Anti-Subsidence Adjustable Manhole Cover is pipeline repair and maintenance equipment supplied by PipeKnot as authorized distributor of Anhui Tongfa Equipment Co., Ltd. It is engineered for ductile iron, carbon and galvanized steel, PE (HDPE), PVC, asbestos-cement across DN600 to DN700.
What is the lead time and how is it shipped?
Standard lead time is 15 working days ex-factory, shipping FOB Shanghai. Sea, air, and combined transport are arranged through PipeKnot to over 40 countries. Volume orders and project tenders receive priority scheduling.
Is installation guidance and technical support included?
PipeKnot provides English-language installation drawings, torque specifications, and remote technical support. On-site commissioning support can be arranged for qualifying projects in partnership with Anhui Tongfa field engineers.
