FLOAT CHECK VALVE FOR FLOATING ROOF DRAIN (WC511,WC512)

· Model WC511 float check valve is side-mounted type to install in water sump of floating roof deck and Model WC512 is bottom mounted type to install under water sump of floating roof deck.

  • Side Mounting Type, Bottom Mounting Type
  • Size : 3” through 8”
  • Available in : Carbon Steel, Stainless Steel.
  • Other size and material to be consulted by factory.

N2 BLANKETING SYS. (WNRS)

· The MODEL WNRS blanket gas valve ensures that a constant gas pressure is maintained in the vapor space of storage tank.
· When liquid is removed from a tank or the temperature is reduced, a vacuum would be developed.
· With the blanket gas regulator, a blanket gas is supplied to prevent any vacuum from developing

– Pressure Settings : Min20mm H2O to 700mm H2O
– Size : 1/4” through 2”
– Available in: Stainless Steel
– Other size and material to be consulted by factory.

FLAME ARRESTER (WF21,WF23)

· Model WF21, WF23 is bi-directional type and designed to be installed in “open vent pipes” from storage or processing tanks, bleed lines or other vapor conveying lines.
· The flame arrester consists of a spiral wound and crimped bank element, is designed for easy maintenance.
· After removing tie rod bolts, it can be expanded by using the remaining jackscrews for element exchange.Model WF21, WF23is used to prevent propagation of an external flame source through the vent opening and into the tank.
· It should be installed at distances of less than 20 times length of arrester N.D away from the open end of pipe.

  • Flame Element : Proven Spiral wound, crimped ribbon design
  • Size : 2” through 12”
  • Available in Aluminum, Carbon Steel, Stainless Steel.
  • Other size and material to be consulted by factory.

FLAME ARRESTER (WF22)

· Model WF22 type is mounted on the end of a vent pipe from the tank. Vapors are allowed to escape into the atmosphere and air can be drawn into the tank through the flame element.
· The flame arrester consists of a spiral wound and crimped bank element.
· The flame arrester is installed where it is not necessary to conserve vapor losses but low flash point solvent liquid must be protected against fire and explosion from exterior ignition sources.

  • Flame Element : Proven Spiral wound, crimped ribbon design
  • Size : 2” through 12”
  • Available in Aluminum, Carbon Steel, Stainless Steel.
  • Other size and material to be consulted by factory.

FLAME ARRESTER (WF24)

· Model WF24 detonation flame arrester is specifically designed to withstand and arrest the velocity and pressure flame fronts that may be developed in long or complex piping runs that encountered in vapor collection or tank manifold system.
· Model WF24 consists of a spiral wound and crimped bank element, and is also designed for easy maintenance. After removing tie rod bolts, it can be expanded by using the remaining jackscrews for element exchange.

  • Flame Element : Proven Spiral wound, crimped ribbon design
  • Size : 2” through 12”
  • Available in Aluminum, Carbon Steel, Stainless Steel.
  • Other size and material to be consulted by factory.

FLAME ARRESTER (WF25)

· Model WF25 is bi-directional type and designed to be installed in “open vent pipes” from storage or processing tanks, bleed lines or other vapor conveying lines.
· The flame arrester consists of a spiral wound and crimped bank element, is designed for easy maintenance.
· After removing tie rod bolts, it can be expanded by using the remaining jackscrews for element exchange.
· Model WF25 is used to prevent propagation of an external flame source through the vent opening and into the tank.
· It should be installed at distances of less than 20 times length of arrester N.D away from the open end of pipe.

  • Flame Element : Proven Spiral wound, crimped ribbon design
  • Size : 2” through 12”
  • Available in Aluminum, Carbon Steel, Stainless Steel.
  • Other size and material to be consulted by factory.

FLAME TRAP (WFT239)

· The Model WFT239 is used to protect low pressure waste gas systems if a fire is burning in the piping.
· The flame trap is a valve intended to prevent backfiring of inflammable mixture of air and vapor and gas etc. automatically.
· The flame trap assembly serves to extinguish a fire occurring in sewage and other facilities where methane gas is apt to be produced.
· When the gas catches fire, the valve is closed by the generated heat to stop the gas flow.
· The Flame Trap is generally installed in gas lines leading from each digester and gas holder.
· It is also installed in a line to gas utilization equipment, as close as possible to the source of combustion.

  • Spring actuated Quick shut-off thermal valve and fusible element, Sight glass and indicator hood.
  • Size : 2” through 12”
  • Available in Aluminum, Carbon Steel, Stainless Steel
  • Other size and material to be consulted by factory.

PRESSURE RELIEF VALVE (WB10,WB13)

· Pressure relief valves are used on liquid storage tanks and other process vessels or systems to prevent structural damage due to excess internal pressure.
· Storage tanks are pressurized when liquid is pumped in, compressing the existing vapor or when rising temperatures cause increase devaporation or expansion of existing vapor.
· To prevent tank damage, vapor must be allowed into or out of the tank at specified pressure condition.The volume rate of venting depends upon the tank size, volatility of the tank contents, the pumping rates and the temperature.

VACUUM RELIEF VALVE (WB11,WB14)

· Vacuum relief valves are used on liquid storage tanks and other process vessels or systems to prevent structural damage due to excess internal vacuum.
· Storage tanks are pressurized when liquid is pumped in, compressing the existing vapor or when rising temperatures cause increased evaporation or expansion of existing vapor. Conversely, a vacuum condition may be created when pumping out or due to falling temperature.
· To prevent tank damage, vapor must be allowed into or out of the tank at specified vacuum condition. The volume rate of venting depends upon the tank size, volatility of the tank contents, the pumping rates and the temperature.

  • Vacuum Setting : -22mm H2O to -8,400mm H2O
  • Size : 2” through 12”
  • Available in Aluminum, Carbon Steel, Stainless Steel.
  • Other size and material to be consulted by factory.

PRESSURE VACUUM RELIEF VALVE (WB12,WB15)

· Pressure / Vacuum relief valves are used on liquid storage tanks and other process vessels or systems to prevent structural damage due to excess internal vacuum.
· Storage tanks are pressurized when liquid is pumped in, compressing the existing vapor or when rising temperatures cause increased evaporation or expansion of existing vapor. Conversely, a vacuum condition may be created when pumping out or due to falling temperature.
· To prevent tank damage, vapor must be allowed into or out of the tank at specified vacuum condition. The volume rate of venting depends upon the tank size,volatility of the tank contents, the pumping rates and the temperature.

  • Pressure Setting : 22mm H2O to 10,000mm H2O
  • Size : 2” through 12”
    -Available in Aluminum, Carbon Steel, Stainless Steel.
  • Other size and material to be consulted by factory.

PRESSURE VACUUM RELIEF VALVE WITH FLAME ARRESTER (WBF60,WBF70)

· A combination of the model WB12, WB15 pressure vacuum relief valve and model WF21 flame arrester make up the model WBF60, WBF70.
· The model WBF70 combination units are used for pressure vacuum relief where vapors must be piped away.
· The bank assemblies are designed of wafer design for easy removal from the housing to facilitate inspection and cleaning.

  • Pressure Setting : 22mm H2O to 10,000mm H2O
  • Size : 2” through 12”
  • Flame Element : Proven Spiral wound, crimped ribbon design
  • Available in Aluminum, Carbon Steel, Stainless Steel.
  • Other size and material to be consulted by factory.

EMERGENCY VENT COVER (WE30,WE33)

· Model WE30, WE33 is designed to protect the tankagainst rupture or explosion that could result fromexcessive internal pressures caused by fire etc.
· Model WE30, WE33 is designed to provide emergency relief capacity beyond that furnished by the normal operating pressure relief valve on the storage tank.
· The feature of Model WE30, WE33 is that the pressure relief cover is designed to lift only far enough to flow its rated capacity should high tank pressure be encountered then reseal automatically when the tank pressure is reduced.

  • Pressure Setting : 50mm H2O to 10,000mm H2O
  • Size :16” through 24”
  • Available in Aluminum, Carbon Steel, Stainless Steel.
  • Other size and material to be consulted by factory.

EMERGENCY VENT COVER (WE31)

EMERGENCY VENT COVER (WE31)
· ModelWE31 is designed to protect the tank againstrupture or explosion that could result from excessiveinternal pressures caused by fire etc.
· ModelWE31is designed to provide emergency relief capacity beyond that furnished by the normal operating pressure relief valve on the storage tank.
· The feature of ModelWE31is that the pressure relief cover is designed to lift only far enough to flow its rated capacity should high tank pressure be encountered then reseal automatically when the tank pressure is reduced.

  • Pressure Setting: 50mm H2O to 10,000mm H2O
  • Size: 16” through 24”
  • Available in Aluminum, Carbon Steel, Stainless Steel.
  • Other size and material to be consulted by factory.

SLOT DEEPING & SAMPLE DEVICE (WDD50)

· The Model WDD50 series is used to gage the height of liquid level, taking temperature and taking samples of liquids held in storagetank without relieving pressure within the tank.
· It avoids the loss of valuable vapors and exposing the people to excessive fumes.

  • Scale Size : 20m, 25m, 30m, 50m, 100m
  • Sampling Bottle Size : 300cc, 600cc
  • Size : 4” through 8”
  • Available in : Aluminum, Carbon Steel, Stainless Steel and
  • Other size and material to be consulted by factory.

GAUGE HATCH (WG41)

· Model WG41 is designed to provide access for product gauging or sampling from liquid storage tank.
· Placing the foot on the serrated treadle opens the cover to a full 75°to80°, permitting inspection and easy entry for gauging or sampling.

  • Available in : Self closing or Lock down cover type
  • Size : 4” through 12”
  • Available in Aluminum, Carbon Steel, Stainless Steel.
  • Other size and material to be consulted by factory.

PRESSURE VACUUM RELIEF VALVE (STEAM JACKET) (WB12AJ)

· Steam Jacket pressure & vacuum relief valve and flame arrester used for tanks that store fluids required to be maintained at constant temperature and the steam jacket devices maybe necessary where vapor gas tend to crystallize at ambient temperature or operating condition.
· The inside of the valve body can be kept at a constant temperature by a steam pipe installed around the body. · All HY productsarepossible to design as steam jacket type.


– Pressure Setting : 22mm H2O to 10,000mm H2O
– Size : 2” through 12”
– Available in Carbon Steel, Stainless Steel.
– Other size and material to be consulted by factory.

AIR RELEASE & VACUUM BREAKER (WB17)

· The Float ball type AIR RELEASE & VACCUM BREAKER, model WB17A and WB17B, were designed, manufactured and tested for allowing atmospheric air through the valve to rapidly displace draining liquid in the pipeline and prevent internal negative pressure damaging the arrangements potentially.
· To prevent damage, vapor must be allowed into or out of the pipeline & at specified vacuum condition.
· The volume rate of venting depends upon the pipe size, the pumping rates and the temperature.

  • Size : 1/2” through 6”
  • Available in Stainless Steel, Duplex, Ni-Al Bronze….
  • Other size and material to be consulted by factory.
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