20′′aluminum Manhole Cover

• Customization: Available
• Casting Method: Special Casting
• Casting Form Material: Metal
• Model NO.: C801A-560/580
• Casting Metal: Nonferrous Alloys
• Surface Treatment: Polishing
• Standard: GB
• Certification: ISO 9001:2000, ISO 9001:2008
• Whole Diameter: 20′′
• Nominal Diameter: 10′′
• Emergency Open Pressure: 21kpa~32kpa
• Installment Mode: Flanged Type
• Transport Package: Carton Packing with Foam Protective
• Specification: C801A-560/580
• Trademark: JIALONG
• Origin: Wenzhou, Zhejiang, China
• Production Capacity: 3000sets/Month

Product Description

1. Tank Truck Manhole Cover

Jialong Manhole Cover is installed on the top of the tanker to prevent the inside fuel from leakage when the tanker is over rolled. With P/V vent inside to adjust the pressure. When there is pressure differences inside and outside the tanker, it will automatically inlet or exhaust air to adjust the pressure so that it can ensure the safety and environment protection. It is suitable to transpore petroleum, diesel, kerosene, and the other light fuel, etc.

2. Benefit & Feature

* Emergency Exhausting Design
When the tanker truck is in high temperature condition, the manhole will automatically exhaust the air inside to release the pressure, ensuring the safety of the tanker.

* With P/V Vent inside
When there is pressure differences inside and outside the tanker, it will automatically inlet or exhaust air to adjust the pressure so that it can ensure the safety and environmental preotection.

* Secondary Open Design
When open the up binder plate, it will release the pressure out to prevent the workers from pushing over.

* Blinding Holes Design
In the main plate of the Manhole, there are three blinding holes can be installed with Vapor Vent Valve, Optic Sensor, Dip Tube or Exernal Vacuum Valve according to the user's demand.

B. Company Introduction

Company Name:	Zhejiang Jialong Mechanical Equipment Co., Ltd
Year Establish:	1997
Business Type:	Manufacturer of tank truck safety equipment (Top 3 in China, covers 60% market)
Main Products:	Manhole Cover, API adaptor, Vapor Vent, Bottom Valve, Emergency shut off valve, Interlock Valve, optic sensor, etc.
The number of employees:	180
R & D department:	30
Factory size:	15000 square meter
Certificates:	ISO9001, API Specification Q1, ADR, PEI, SGS, TS, CE, EX, CCS, etc.

1.Products.

2. Production & Testing Equipment


3. Show Room

4. Workshop


5. Certificate