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Stainless Steel Six-claw Quick-opening Explosion-proof Manhole Cover with Modified Rubber/Nitrile Rubber Seal Material
Product Description
Factory direct sale stainless steel six-claw quick-opening explosion-proof manhole cover for tanker applications.
Specification
Value
Nominal diameter
DN500
Nominal pressure
21-35 kPa
Main Material
Stainless Steel
Design Temperature
-20~+150°C
Seal Material
Modified rubber/Nitrile Rubber
Maximum Gas Displacement
7000
Maximum Liquid Displacement
150
Key Features
Installed on tanker tops with breathing valve and emergency relief device
Automatically adjusts internal tank pressure for safer, more environmentally friendly oil transportation
Suitable for shipping light fuel oil, slightly corrosive products, and chemical raw materials
High-quality stainless steel 304 material with excellent corrosion and wear resistance
Secondary opening device with special key for enhanced safety and user-friendliness
Double cover design allows separate opening of large and small covers as needed
Automatic emergency exhaust prevents explosion by releasing tank pressure at high temperatures
Product Images
Packaging & Shipping
Our Services
We offer professional design services with accurate CNC lathe machines and reliable testing equipment. OEM/ODM services available with complete control from drawing design to finished product testing.
Company Information
Hubei Huate Special Equipment Co., Ltd., established in 2009, is located in Suizhou, China, covering 30,000 square meters. We specialize in manufacturing equipment for petroleum, chemical, food, and transportation industries with products sold worldwide.
Main products include: Oil tankers, chemical trucks, milk trucks, edible oil trucks, tank semi-trailers, flatbed semi-trailers, box semi-trailers, mobile gas stations, ISO Tanks, buried oil tanks, and tanker safety accessories.
Certified with ISO9001 and CCC certificates, we have successful export experience in North America, Southeast Asia, Middle East, and Africa.
Frequently Asked Questions
Q: Are you trading company or manufacturer?
A: We are factory.
Q: How long is your delivery time?
A: Generally 5-10 days if in stock, or 30 days if not in stock (depending on quantity).
Q: Do you provide samples?
A: Yes, we offer samples (not free) but can return sample cost when order reaches 2000pcs.
Q: What are your payment terms?
A: ≤$3000: 100% in advance. ≥$10,000: 30% T/T in advance, balance before shipment.
Q: How long have you worked in this field?
A: Over 15 years.
Q: Can you produce according to our drawings/samples?
A: Yes, we can customize products based on your specifications.
For any other questions, please feel free to contact us.