205 visiting now: 173 USA USA flag 20 Belgium Belgium flag 4 Canada Canada flag 3 Singapore Singapore flag 3 UK UK flag 1 Russia Russia flag 1 Finland Finland flag 1 Germany Germany flag

Highlighted Companies

  • Eagle Eyes China Inspection Company (China): Eagle Eyes (CHINA) Quality Inspection Co.,Ltd. is a professional Third... https://www.china-qualityinspection.com
  • YESN-China shipping Labels manufacturer-compatible label factory (China): XIAMEN YESN-China shipping Labels manufacturer-compatible... http://www.yesnlabels.com
  • High Velocity Vent Valve - China

    price: 3.00 Dollar US$

    Marine PV valve(pressure/vacuum valve for cargo oil tank)is also called as high-velocity relief valve, high velocity P/V valve, generally used in the relief system of the oil tanker and chemical tanker, according to the current regulations IMO and IBC.

    The purpose of the high velocity valve is to provide automatic control of pressure differentials during liquid cargo ship loading, voyage, ballasting and de-ballasting without any manual operation, also, it provides auto-protection against fire and explosions on deck.

    Additionally in the event that the inert gas system can not supply gas promptly, the vacuum valve can auto open to protect the tank against excessive vacuum when de-ballasting on dock.

    Normal, when the pressure risen in tank because of temperature or loading, the pressure valve open automatically and vent gas.

    When the pressure of tank come to pressure differentials, the vacuum valve or pressure valve all can be automatic resetted.

    If an ignition occurs outside the tank space, the flames will be quenched in the flame trap.

    Specification: Material: Cast Steel or Stainless Steel

    Flange Standard: GB, JIS, DIN, ANSI, BS

    Opening Pressure of Vacuum Valve: -3.5kPa

    Opening Pressure of Pressure Valve on the oil tank is 14kPa, on the chemical tank is 20kPa.

    The opening pressure of the pressure may be different, but the differences of opening pressure and flow range is inapparent if the pressure valves have the same diameter.


    Company Contact:


    • Phone: +86-13951157652

    • Address: Daiwang Road, East Industrial Park, Taixing , Jiangsu , China

    • Email: Email

    Published date: December 4, 2019

    • Business Description: Taixing Hongyuan Machinery Co., Ltd, located in Taixing, Jiangsu, is the top ranked and experienced machinery manufacturer and supplier in China, whose series of high quality CNC machinery, machine tools, mechanical & electric equipments are widely used in the field of metalworking, shipbuilding, oil industry etc.

      Established in 2003, and spread its business to over 30 countries

      Our main product :

      1 - CNC pipe threading lathe, drill pipe hardbanding machine, drill pipe repair machine, CNC spiral groove milling machine etc, this series machineries are mainly used in petroleum, gas industry for manufacturing and processing hardbanding, thread products, on oil tubing, casing, drill pipe, drill collar, tool joint, and coupling etc.

      2 - CNC gas/plasma cutting machineļ¼Œ Wire rope swaging machine

      3 - High velocity relief valve (pressure/vacuum valve) for oil tanker and chemical tanker



      With over 10 years of combined knowledge and expertise, our team is staffed with skilled people that our customers can count on, provide innovative and cost effective solutions to customer needs.

    Related listings



    • Oil Tank Safety Valve
      Oil Tank Safety Valve
      Valves - Taixing Hongyuan CNC Machine Tool Co.,Ltd - China - December 4, 2019 - 3.00 Dollar US$

      The purpose of High velocity pressure vacuum valves is designed to prevent the flame passage into cargo tanks and to relieve excessive over pressure or under vacuum of cargo tanks during cargo loading, discharging, ballasting and thermal variations. ...

    • Oil Tank High Velicity Relief Valve
      Oil Tank High Velicity Relief Valve
      Valves - Taixing Hongyuan CNC Machine Tool Co.,Ltd - China - December 4, 2019 - 2.00 Dollar US$

      High-velocity relief valve (pressure vacuum valve) is the controlled venting system the safest production for oil tanker and chemical tanker. he series of CF-type P/V valve is a new generation production without vibration and anti-collision. It is in...

    • Cargo Tank Pressure Vacuum Valve
      Cargo Tank Pressure Vacuum Valve
      Valves - Taixing Hongyuan CNC Machine Tool Co.,Ltd - China - December 4, 2019 - 2.00 Dollar US$

      his valve is designed to relieve excessive over pressure or under vacuum of cargo tanks during cargo loading, discharging, ballasting and thermal variations. it also designedfor devices to prevent the passage of flame into cargo tanks in tankers. App...



    Safe Trade Tips

    • Ask for business references and check them
    • Use a payment method that offers better protection for all such as Letters of credit and verified professional escrow services. Avoid payments in advance such as money transfers
    • Verify their business via their local Chamber of Commerce
    • Search the internet using their website address, their business name, their phone and fax numbers, and their email addresses to see if you can find any feedback about them.
    • Get to know more about scams and fraud to avoid: Internet Crime Complaint Center - Consumer Financial Protection Bureau
    • This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"