Model No.: DLAN
Brand: DLAN
Warranty Period: 3 Years
Types Of: Safety Relief Valves, Vacuum Relief Valves, Pressure Reducing Control Valves, Vent Valves, Air &Amp; Vacuum Release Valves, Air Valves &Amp; Vents
Certification: Csa, Gs
Support Customization: Oem
Place Of Origin: China
Application: General
Medium Temperature: Medium Temperature
Structure: Safety
Material: Stainless Steel Body
Packaging: Plywood case
Productivity: 500 units per month
Transportation: Ocean,Land,Air
Place of Origin: China
Supply Ability: 500 sets per month
Certificate: CCS
HS Code: 8481804090
Payment Type: L/C,T/T,D/P,Western Union
Incoterm: FOB,CFR,CIF
Features of the Pv Valve:
The pressure/vacuum valve for cargo ships is also called as high velocity relief valve or P/V 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.
Items in the Manual: the following icons show some information about the valve.
The DF-ISO type pressure/ vacuum valve（ high velocity relief valve）is designed, manufactured and tested by the following standards and stipulations:
L.IMo.MSC/Circ.677 Revised Standards of Designing, Testing and Installing the Device that can Stop the Flame into the Liquid Cargo Tank；
2.ISO15364 Ships and Marine Technology-Pressure/Vacuum Valve for Cargo Tank；
3.IMO.MSC/Circ1324；
Reference EN128742001 Requirements, Testing Methods and Usage Scope about the FLAME ARRESTER.
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.
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, obtained the approval of china classification society（CCS） and some foreign classification societies.
1 Fire Resistant Test；2.Re- burning Test；3. Frozen Test；4. Corrosion Resistant Test；5. Flowing Test.
Parameter of the valve
主要技术参数Main technical parameters e 表三Table 3 型号 Setting openin pressure (kPa) Rated working pressure (kPa) (m3/h) flow rate MESG mm Pressure valve 出口流速 Exit velocity (m/s) MODEL Pressure valve Vacuum valve Pressure valve Vacuum valve Pressure valve Vacuum valve DF50 14.0~ 20.0 -3.5 21.0 -7.0 > 300 >300 ≥0.65 > 30 DF65 14.07 20.0 -3.5 21.0 -7.0 >400 >400 ≥0.65 >30 DF80 14.0~ 20.0 -3.5 21.0 -7.0 >600 >500 >0.65 >30 DF100 14.0~ 20.0 -3.5 21.0 -7.0 >800 >600 >0.65 >>30 DF125 14.0~ 20.0 -3.5 21.0 -7.0 >1000 >800 ≥0.65 >>30 DF150 14.0~ 20.0 -3.5 21.0 -7.0 >2500 >2000 ≥0.65 >30 DF200 14.0~ 20.0 -3.5 21.0 -7.0 >3000 > 3000 ≥0.65 >30 DF250 14.0~ 20.0 -3.5 21.0 -7.0 >3500 > 3000 ≥0.65 > 30
Product Categories : MARINE PRODUCTS > FLAME ARRESTER
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