Korean technologies

INTRODUCTION
Model NK-GH40S, NK-GH41L 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°to 80°, permitting inspection and easy entry for gauging or sampling.

SPECIFICATIONS

MATERIALS

DESIGN AND FUNCTION
Model NK-GH41S NK-GH41L is designed for working pressure up to 3psig and non-sparking type.
Placing the foot on serrated treadle opens the cover to a full 75°to 80°, input the sampling bottle with a tape measure to in tank.
And check the liquid level on the scale of body inside, take out the sampling bottle from in tank. Removing foot returns cover to a closed position.

DRAWING AND DIMENSION (NK-GH41L)  Unit : (mm)

• Storage Tank Accessory
• Tel : 82 55 762 0019 Fax : 82 55 762-2251
• Email:neotech@neotechkorea.com
• Name : KyungRo Lee

• Homepage : http://www.corpwin.com

INTRODUCTION
Model NK-GH40S, NK-GH41L 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°to 80°, permitting inspection and easy entry for gauging or sampling.

SPECIFICATIONS

MATERIALS

DESIGN AND FUNCTION
Model NK-GH41S NK-GH41L is designed for working pressure up to 3psig and non-sparking type.
Placing the foot on serrated treadle opens the cover to a full 75°to 80°, input the sampling bottle with a tape measure to in tank.
And check the liquid level on the scale of body inside, take out the sampling bottle from in tank. Removing foot returns cover to a closed position.

DRAWING AND DIMENSION (NK-GH41S)  Unit : (mm)

• Storage Tank Accessory
• Tel : 82 55 762 0019 Fax : 82 55 762-2251
• Email:neotech@neotechkorea.com
• Name : KyungRo Lee

• Homepage : http://www.corpwin.com

DESIGN AND FUNCTION

The vacuum breaker was designed, manufactured and tested forallowing 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 thepipeline & at specified vacuum condition. The volume rate of venting depends upon the pipe size, the pumping rates and the temperature. Refer to API Standard 2000 for the procedures to determine venting requirements. As a vacuum is drawn in the Piping line, for example, when fluid is being pumped out, the pressure pallet is held shut by atmospheric pressure. When the vacuum setting is reached, the pallet lifts and air is drawn in from the atmosphere.
 

VACUUM BREAKER

MATERIALS

The vacuum breaker was 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. The volume rate of venting depends upon the pipe size, the pumping rates and the temperature.

• Storage Tank Accessory
• Tel : 82 55 762 0019 Fax : 82 55 762-2251
• Email:neotech@neotechkorea.com
• Name : KyungRo Lee

• Homepage : http://www.corpwin.com

DESIGN AND FUNCTION

The Float ball type AIR RELEASE & VACUUM BREAKER, model NK-AR17, wasdesigned, 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. Refer to API Standard 2000 for the procedures to determine venting requirements.

SPECIFICATIONS

MATERIALS

                       (VALVE OPEN)                                                                   (VALVE CLOSE)

The Float ball type AIR RELEASE & VACCUM BREAKER was 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. Refer to API Standard 2000 for the procedures to determine venting requirements.
During filling, air that occupies the empty pipe must be evacuated ahead of the incoming liquid in a
controlled and efficient manner so that surge and water hammer are minimized and liquid completely fills the
pipe. During draining, whether planned or unexpected, air must be admitted into the system to replace the
out fiowing liquid to avoid excessive vacuum and possible pipeline damage.
Air release valve are designed to release accumulated air pockets from the system, while pressured pipelines.
Air pockets increase energy consumption because pumping operation will be at higher water heads to
overcome pressured air.
Air release valves are have function to protect high shock and surge pressure, water hammer and liquid
overfiow from fresh or sea water pipelines.

• Storage Tank Accessory
• Tel : 82 55 762 0019 Fax : 82 55 762-2251
• Email:neotech@neotechkorea.com
• Name : KyungRo Lee

• Homepage : http://www.corpwin.com

DESIGN AND FUNCTION

The Float ball type AIR RELEASE & VACUUM BREAKER, model NK-AR17, wasdesigned, 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. Refer to API Standard 2000 for the procedures to determine venting requirements.

SPECIFICATIONS

MATERIALS

                     (VALVE OPEN)                                                                   (VALVE CLOSE)

The Float ball type AIR RELEASE & VACCUM BREAKER was 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. Refer to API Standard 2000 for the procedures to determine venting requirements.
During filling, air that occupies the empty pipe must be evacuated ahead of the incoming liquid in a
controlled and efficient manner so that surge and water hammer are minimized and liquid completely fills the
pipe. During draining, whether planned or unexpected, air must be admitted into the system to replace the
out fiowing liquid to avoid excessive vacuum and possible pipeline damage.
Air release valve are designed to release accumulated air pockets from the system, while pressured pipelines.
Air pockets increase energy consumption because pumping operation will be at higher water heads to
overcome pressured air.
Air release valves are have function to protect high shock and surge pressure, water hammer and liquid
overfiow from fresh or sea water pipelines.

• Storage Tank Accessory
• Tel : 82 55 762 0019 Fax : 82 55 762-2251
• Email:neotech@neotechkorea.com
• Name : KyungRo Lee

• Homepage : http://www.corpwin.com

DESIGN AND FUNCTION

Liquid-seal type emergency vent cover prevents the discharge of Vapor gas with liquid film. Vapor gas can not be discharged into the Atmosphere with liquid film. The liquid Which Win uses is a special Liquid and its characteristic is as follows.

* It does not freeze in winter.
 * It minimizes the vaporization of liquid during summer.
 * The liquid does not change even it contacts with vapor gas.
 * It is odorless liquid.
 * It does not deteriorate even in long time use.

COMPARISON TABLE OLD & NEW PRODUCT

INSTALLATION, OPERATION, MAINTENANCE & REPAIR

                        (o)                                                                                         (x)

DRAWING AND DIMENSION (NK-EV35W)  Unit : (mm)

• Storage Tank Accessory
• Tel : 82 55 762 0019 Fax : 82 55 762-2251
• Email:neotech@neotechkorea.com
• Name : KyungRo Lee

• Homepage : http://www.corpwin.com

DESIGN AND FUNCTION

Model NK-FC511 float check valve is side-mounted type to install in water sump of floating roof deck and Model NK-FC512 is bottom mounted type to install under water sump of floating roof deck.

SPECIFICATIONS

MATERIALS

DRAWING AND DIMENSION (NK-FC511)  Unit : (mm)

• Storage Tank Accessory
• Tel : 82 55 762 0019 Fax : 82 55 762-2251
• Email:neotech@neotechkorea.com
• Name : KyungRo Lee

• Homepage : http://www.corpwin.com

DESIGN AND FUNCTION

Model NK-FC511 float check valve is side-mounted type to install in water sump of floating roof deck and Model NK-FC512 is bottom mounted type to install under water sump of floating roof deck.

SPECIFICATIONS

MATERIALS

DRAWING AND DIMENSION (NK-FC511)  Unit : (mm)

• Storage Tank Accessory
• Tel : 82 55 762 0019 Fax : 82 55 762-2251
• Email:neotech@neotechkorea.com
• Name : KyungRo Lee

• Homepage : http://www.corpwin.com

INTRODUCTION
The Model NK-SD50 series is used to gage the height of liquid level, taking temperature and taking samples of liquids held in storage tank without relieving pressure within the tank. It avoids the loss of valuable vapors and exposing the people to excessive fumes

BASIC INFORMATION

DESIGN AND FUNCTION

The NK-SD50 model is designed for closed sampling of liquids, which present a fire, Health or Air pollution hazard. It protects the storage facility from vapor emission and avoids a pressure release in the tank during sampling. The sampling height can be measured graduated tape.
After sampling, the liquid can be transferred into a laboratory. Quick opening valve unit is opened and closed simply by moving a lever through a 90°arc.
A by-pass is provided to equalize in the tank and sampling chamber unit, if this should be necessary for easy opening. The device has an aluminum or stainless steel body and aluminum pallet or stainless steel. The pallet is fitted with an O-Ring that assures tight sealing. The window in the top cover of the gauging unit can be checking the tanking of accurate reading. The NK-SD50 device can be installed an API 650 and API 620 storage tank with a design pressure of 15 psig(1,05 ㎏/㎠).

DRAWING AND DIMENSION (NK-SD50)  Unit : (mm)

• Storage Tank Accessory
• Tel : 82 55 762 0019 Fax : 82 55 762-2251
• Email:neotech@neotechkorea.com
• Name : KyungRo Lee

• Homepage : http://www.corpwin.com

INTRODUCTION

The MODEL NK-NB2L series blanket gas valves
ensure 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 and to maintain the desired blanket pressure.

BASIC INFORMATION

DESIGN AND FUNCTION

The NEOTECHKOREA Nitrogen Gas Blanketing Valves ensure 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 and to maintain the desired blanket pressure.
The Model NK-NB2S is a pilot-controlled stainless steel valve using a single oversized diaphragm actuator. The Model NK-NB2L is a direct–operated stainless steel valve using a single oversized diaphragm actuator. The oversized actuator offers high sensitivity to change in tank pressure, which increases the accuracy. The valves are fully balanced under all operating conditions, allowing for operation with varying inlet pressures. Blanketing pressure set point is easily controlled by a single adjusting screw.

INSTALLATION
The corporation win blanketing valve has been assembled, calibrated and tested. The only adjustable feature is the gas blanketing set point. It has been adjusted to the pressure indicated on the purchase order at the specified supply pressure and set point.

(1) N2 Supply Main line;
It must be removed dirt and pipe scale.
The Mainline should be installed with a 65-mesh strainer to remove dirt and pipe scale.

(2) Sensing Line;
It must be drained (slope down) and not contain low points or traps that could contain liquid. The sensing line should be 1/2” tubing or pipe.

MAINTENANCE

In Every month;
1. Open the drain port on the main supply line strainer (④) and filter of strainer must be cleaned.
2. Check the unit for problems, loose connection, etc.
3. Check the inlet main pressure (⑤) and to be compared with stamped pressure range on the valve name plate
4. Check the blanketing pressure (⑥)

OPERATION

The tank pressure is sensed on the underside of the diaphragm part. The diaphragm directly actuates the pilot valve poppet. Flow through the pilot valve is directed to the tank being blanketed. Gas flowing through the pilot valve causes the pressure to drop in the sealed chamber above the main valve piston. When the pressure has dropped, the main valve opens and allows blanketing gas to flow in to the tank.

• Storage Tank Accessory
• Tel : 82 55 762 0019 Fax : 82 55 762-2251
• Email:neotech@neotechkorea.com
• Name : KyungRo Lee

• Homepage : http://www.corpwin.com