DEYUAN
Standard
Pressure Reducing
Low Pressure
Pneumatic
Casting, Cast Steel, Stainless Steel
Normal Temperature
liquid
50-250
China (Mainland)
CF
OEM
vessel
one year
GB, JIS, DIN, ANSI, BS
CCS, BV, ABS
each piece with plastic bag, and the outside case is the plywood case.
10-60days according to the quantity
PV valve for cargo oil tank:
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.
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.
Certificate: CCS, BV
.
Serial No. | Parts | Quantity | Material | Remarks |
1 | P-valve base | 1 | ZG200-400 | Cast 20# |
2 | Water nozzle | 1 | 0Cr18Ni9 | SUS304 |
3 | P-valve seat | 1 | 0Cr18Ni9 | SUS304 |
4 | P-valve disc | 1 | 0Cr18Ni9 | SUS304 |
5 | Matching block | 1 | 0Cr18Ni9 | SUS304 |
6 | P-valve body (A) (B) | 1 | ZG200-400 | Cast 20# |
7 | Conducting machine | 1 | 0Cr18Ni9 | SUS304 |
8 | Handle | 1 | 0Cr18Ni9 | SUS304 |
9 | V-valve body | 1 | ZG200-400 | Cast 20# |
10 | Matching block | 1 | 0Cr18Ni9 | SUS304 |
11 | V-valve disc | 1 | 0Cr18Ni9 | SUS304 |
12 | V-valve seat | 1 | 0Cr18Ni9 | SUS304 |
13 | Flame screen | 2 | 00Cr17Ni14Mo2 | SUS304 |
14 | Flame screen gland | 1 | ZG200-400 | Cast 20# |
15 | Nameplate | 1 | 0Cr18Ni9 | SUS304 |
16 | Climbing pole | 1 | 0Cr18Ni9 | SUS304 |
17 | Gas-freeing cover or V-valve cover | 1 | ZG200-400 | Cast 20# |
DN | D2 | D1 | D | L | H | Assembly hole |
250 | 320 | 350 | 395 | 460 | 860 | 12xø22 |
200 | 268 | 295 | 340 | 455 | 850 | 8xø18 |
150 | 202 | 225 | 265 | 385 | 710 | 8xø18 |
125 | 178 | 200 | 240 | 380 | 665 | 8xø18 |
100 | 148 | 170 | 210 | 285 | 565 | 4xø18 |
80 | 128 | 150 | 190 | 285 | 535 | 4xø18 |
65 | 110 | 130 | 160 | 255 | 485 | 4xø14 |
50 | 90 | 110 | 140 | 255 | 485 | 4xø14 |
PV valve for cargo oil tank:
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.
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.
Certificate: CCS, BV
.
Serial No. | Parts | Quantity | Material | Remarks |
1 | P-valve base | 1 | ZG200-400 | Cast 20# |
2 | Water nozzle | 1 | 0Cr18Ni9 | SUS304 |
3 | P-valve seat | 1 | 0Cr18Ni9 | SUS304 |
4 | P-valve disc | 1 | 0Cr18Ni9 | SUS304 |
5 | Matching block | 1 | 0Cr18Ni9 | SUS304 |
6 | P-valve body (A) (B) | 1 | ZG200-400 | Cast 20# |
7 | Conducting machine | 1 | 0Cr18Ni9 | SUS304 |
8 | Handle | 1 | 0Cr18Ni9 | SUS304 |
9 | V-valve body | 1 | ZG200-400 | Cast 20# |
10 | Matching block | 1 | 0Cr18Ni9 | SUS304 |
11 | V-valve disc | 1 | 0Cr18Ni9 | SUS304 |
12 | V-valve seat | 1 | 0Cr18Ni9 | SUS304 |
13 | Flame screen | 2 | 00Cr17Ni14Mo2 | SUS304 |
14 | Flame screen gland | 1 | ZG200-400 | Cast 20# |
15 | Nameplate | 1 | 0Cr18Ni9 | SUS304 |
16 | Climbing pole | 1 | 0Cr18Ni9 | SUS304 |
17 | Gas-freeing cover or V-valve cover | 1 | ZG200-400 | Cast 20# |
DN | D2 | D1 | D | L | H | Assembly hole |
250 | 320 | 350 | 395 | 460 | 860 | 12xø22 |
200 | 268 | 295 | 340 | 455 | 850 | 8xø18 |
150 | 202 | 225 | 265 | 385 | 710 | 8xø18 |
125 | 178 | 200 | 240 | 380 | 665 | 8xø18 |
100 | 148 | 170 | 210 | 285 | 565 | 4xø18 |
80 | 128 | 150 | 190 | 285 | 535 | 4xø18 |
65 | 110 | 130 | 160 | 255 | 485 | 4xø14 |
50 | 90 | 110 | 140 | 255 | 485 | 4xø14 |