Oil Tanker Chemical Tanker High Velocity Pressure Vacuum Relief PV Valves

Oil Tanker Chemical Tanker High Velocity Pressure Vacuum Relief PV Valves

The High Velocity PV Valve for cargo ships is also called as high velocity relief valve or pressure/vacuum valve. It is a controlled venting system necessary for oil tanker and chemical tanker.
The series of DF-ISO high velocity relief valve which are produced by our company is a new generation production that is without vibration and anti-collision. It is the safest production for oil tanker and chemical tanker once operated by the Manual.

Standards & Regulations of High Velocity Pressure Vacuum Relief PV Valves
The DF-ISO type High Velocity PV Valve (high velocity relief valve) is designed, manufactured and tested by the following standards and stipulations:
1 .IMO.MSC/Circ.677 Revised Standards of Designing, Testing and Installing the Device that can Stop the Flame into the Liquid Cargo Tank;
2 .IS015364 Ships and Marine Technology-Pressure/Vacuum Valve for Cargo Tank;
3. IMO.MSC/Circ1324;
4. EN12874-2001 Requirements, Testing Methods and Usage Scope about the Flame Arrester.

Usage of High Velocity Relief Valves
As the sole breathable port of oil tanker and chemical tanker, the pressure vacuum valve is installed on the top of each compartment. When the hydraulic compartment is loading cargo. the pressure valve effluent mixed gas at a speed of more than 30 m/s vertically upwards. When discharge cargo, the vacuum valve add air to the cabin automatically to prevent the hydraulic tank from overpressure and pressure loss. Pressure vacuum valve made in accordance with the above standards can prevent the flame into the hydraulic tank even under the working condition.

Tests Process: 

The cargo-oil-tank-pressure/vacuum-valve test of our company is examined in the laboratory which is approved by the national competent authority, and we passed all the tests of following items in accordance with the above standard.
1. Fire Resistant Test.
2. Re-burning Test.
3. Frozen Test.
4. Corrosion Resistant Test.
5. Flowing Test.

Techinical Datas:

Packing:  

With all the marine supplies stored, we could offer you one-stop service. You dont have to spend time and effort to find and coordinate many suppliers. 

We have warehouses in Shanghai and Guangzhou city. Two big port of China. We are the supplier of ship chandler for all kinds of Marine Safety Equipment. And these two cities are with very convenient transportation. Welcome you to visit us. 

  Shanghai QianGang Marine Industrial Co., Ltd is the biggest supplier who committed to supplying quality Marine Safety Equipment for ship chandler in Shanghai area of China. With deep brand heritage and solid customer base, QianGang brand has become the synonymous with high quality and excellent service since the the establishment of 2009.

  QianGang has a well-trained, professional and experienced team. Externally, their major priority is customers' satisfaction. Internally, by providing a continuous training, career development and extra bonuses for employees, they are the guarantee of the development. QianGang will be managed to achieve its goal: "To be industry Leader in the Marine Safety Equipment”.

   Our Main Products includes Life Buoy & light, Life Jacket & Light, Firefighting Outfit, Fire Hose & Nozzle, Fire Extinguisher, Ladders & parts, Life Raft & Accessories, IMO Symbols & Flags and some Other Marine supplies. Most of these products got CCS and EC/MED certificate. Each order we will provide the valid certificates for our clients. 

  QianGang vision is to supply and distribute high quality products at competitive price in international market. This vision, along with the care for the customers and the indispensable input of the employees, have resulted to the company's growth and will continue to contribute positively in the continuous development of QianGang.

Most of our products have got approved the SOLAS standard. And the products are with the certificate of CCS, IMO, MED, EC, etc. 

We have Warehouses & offices  in Shanghai and Guangzhou City. Either city you want to visit us, pls let us know. 

We will arrange picking-up from airport, train station, metro station or your hotel. 

1. Are you the manufacturer or the trading company?

We have our own factory, and two warehouses in Shanghai and Guangzhou. 

2. What is your strength?
We have 20 years experience in marine safety equiment. All kinds of safety products you can find from us. One-Stop Shopping Service here. 

3. What is your delivery time?

Normally, after your deposit, we could finish the production within 5-15 days.

4. What is your payment methods?
T/T, L/C, Paypal, West Union, Cash

5. About the samples terms:
The samples cost and freight need to be covered by you.
We will refund when you place the formal order according to sample cost and the totalamount of the order.

6. Any Inquiries will be replied within 24 hours
We could communicate with each other by email, Whatsapp,  skype and telephone.

7. After Sale Service: 
a. All products will have been strictly Quality Control in workshop before packing.
b. All products will be well packed before shipping.
c. All our products have 1 year warranty and we sure the product will be free from maintenance within warranty period.

8. Shipping
Even with battery product, like life jacket light, we sitll can send to you by express. 

We will recommend to you the suitable way to ship the goods to you .