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Specializing in the production of JAV/JHX5 jacketed insulation breathing valve, JAV-I type oil tank jacket insulation call

discount 70% in 2018-09-19 to 2018-09-21
price: USD$ 35.00
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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 Application and performance specification:

Tanks for various light oils used in coking plants, urban gas plants, refineries and chemical plants. Tank useSingle callAfter the valve, the evaporation loss of the oil in the tank can be obviously reduced, and the pressure in the oil tank can be automatically adjusted and the ventilation of the oil tank can be improved. In line with the standards of the Ministry of petroleum industrySY7511-87Regulations.


1, jacketSingle callThe valve material is made of cast steel and stainless steel, corrosion resistance.

2, valve plate, valve sealing ring using carbon steel, stainless steel, PTFEBOlefinic material. Low temperature resistance and good frost resistance.

3, the valve is installed on the fixed roof tank ventilation device, reduce the evaporation loss of oil, control tank pressure effect.

4, the valve has a large amount of ventilation, leakage, corrosion resistance, good antifreeze.

5. It can automatically adjust the internal and external pressure of the oil tank.

6, simple structure, light weight, easy to overhaul, easy installation.

7. Water pressure test qualified.

Applicable scope:

It can be used in conjunction with flame arrester.

Setting pressure (operating pressure):

Positive pressure:+2500pa+250mmH2O)                


1, low temperature and frost resistance qualified: in-29C operation2The pressure valve plate, the vacuum valve plate and the sealing ring all have no deformation during the hour, which fully meets the design requirements.

2, at room temperature36Continuous operation at C72Hour action10000Second, the pressure valve disc and guide rod contact surface without any wear and bruising signs, guide rod lifting sensitive, no stuck phenomenon.

Maintenance and repair:

In order to ensure the jacketSingle callThe performance of the valve can be fully used.Single call valveInspection and maintenance should be carried out in half a year.

1. Check whether the action of the pressure valve plate is flexible, whether the contact surface of the guide rod and the valve sealing ring is damaged or not.

2, reinstall the pressure valve plate, should ensure that the contact surface should be strict, guide rod lifting flexible.

3When the new valve is started, the shock proof substance of the valve disc should be removed before installation, otherwise the breather valve will fail.

4Due to the humid weather, the use of non essential oil in the storage tank can reach zero within the range of zero temperature. In order to keep the tank safe, it is necessary to open the oil measuring hole and other gas supply products in the emergency production.

5Single call valveThe oil metering hole must be opened before the normal operation of the oil inlet.