The TLV JA3D is a free float air trap constructed of zinc alloy. It is suitable for air systems with pressures up to 1.6 MPaG (230 psig) and temperatures up to 100 °C (212 °F). The trap discharges oil and condensate continuously and automatically without adjustment.

Configuration

This trap has two inlet ports – one at the top and one at the side of the trap. Only one port can be used as an inlet. The other port should be used to connect a pressure-balancing line to prevent air binding.

No.	Description	No.	Description
1	Body	8	Valve Seat Holder Gasket
2	Cover	9	Valve Seat Holder
3	Union Nut	10	Coil Spring
4	Float	11	Plunger O-Ring
5	Screen	12	Snap Ring
6	Cover Gasket	13	Plunger
7	Valve Seat	14	Guard Bushing

Specifications

Model & Connection (S = Screwed)	Size mm (in)	Maximum Operating Temperature TMO °C (°F)	(1) Maximum Operating Pressure PMO MPaG (psig) (2) Maximum Differential Pressure ∆PMX MPa (psi)
JA3D S	15 (1/2)	100 (212)	(1) & (2) 1.6 (230)

1 MPa = 10.197 kg/cm², 1 bar = 0.1 MPa

PRESSURE SHELL DESIGN CONDITIONS (NOT OPERATING CONDITIONS):

• Maximum Allowable Pressure PMA: 1.6 MPaG (230 psig)
• Maximum Allowable Temperature TMA: 100 °C (212 °F)

WARNING

To avoid malfunctions, product damage, accidents or serious injury, install properly and DO NOT use this product outside the specification range. Local regulations may restrict the use of this product to below the conditions quoted.

Proper Installation

• Installation, inspection, maintenance, repairs, disassembly, adjustment and valve opening/closing should be done only by trained maintenance personnel.
• Take measures to prevent people from coming into direct contact with product outlets.
• Do not use excessive force when connecting threaded pipes.
• Install for use under conditions in which no freeze-up will occur.
• Install for use under conditions in which no water hammer will occur.

1. Before installation, be sure to remove all protective seals.
2. Before installing the trap, blow out the inlet piping to remove all dirt and oil.
3. The trap can be installed with the condensate inlet pipe connected horizontally and the pressure-balancing line connected vertically, or vice versa.
4. Install shutoff valves at the trap inlet and in the pressure-balancing line to isolate the trap in the event of trap failure or when performing maintenance.
5. Install the trap in the lowest part of the pipeline or equipment so the condensate flows naturally downward into the trap by gravity. The inlet pipe should be as short and have as few bends as possible.
6. Install the trap within the allowable inclination, as shown below. Also make sure that the arrow mark on the body points in the direction of flow.
7. It is recommended that a hose be connected to the trap outlet to lead the condensate to a nearby collection tank or drain.
8. When completing the piping, support the pipes properly within 800 mm of the trap.
9. The use of unions is recommended to facilitate connection and disconnection of the trap.
10. Connect a pressure-balancing line to the trap and the receiver tank or the air section of the main, as shown below.
11. Prime the trap with water through the balancing port or line to ensure a seal.

Horizontal Inclination

Vertical Inclination

Piping Arrangement

Check to make sure that the pipes connected to the trap have been installed properly.

1. Is the pipe diameter suitable?
2. Has the trap been installed within the allowable inclination and with the arrow on the body pointing in the direction of flow?
3. Has sufficient space been secured for maintenance?
4. Have shutoff valves been installed at the inlet of the trap and in the pressure-balancing line?
5. Is the inlet pipe as short as possible, with as few bends as possible, and installed so that the condensate will flow naturally down into the trap?
6. Has the pressure-balancing line been connected to the trap and the receiver tank or the air section of the main, as shown below?

Operational Check

A visual inspection of the following items should be done on a daily basis to determine whether the trap is operating properly or has failed. Periodically (at least biannually) the operation should also be checked by using diagnostic equipment such as a stethoscope or thermometer.

State	Description
Normal:	Condensate is discharged continuously and the sound of flow can be heard. If there is very little condensate, there is almost no sound of flow.
Blocked:	No condensate is discharged.
Blowing:	Air continually flows from the outlet and there is a continuous high-pitched sound of flow.
Air Leakage:	Air is discharged through the trap outlet together with the condensate, accompanied by a high-pitched sound.

If the trap shows signs of blockage, blowing or air leakage, perform manual blowdown by pushing the plunger in several times with a fingertip to allow dirt and oil to be discharged through the orifice. If this does not remedy the problem, perform troubleshooting.

Inspection and Maintenance

Operational inspections should be performed at least twice per year, or as called for by trap operating conditions. Faulty air traps may result in losses due to air leakage.

DANGER

NEVER apply direct heat to the float. The float may explode due to increased internal pressure, causing accidents leading to serious injury or property and equipment damage.

• Installation, inspection, maintenance, repairs, disassembly, adjustment and valve opening/closing should be carried out only by trained maintenance personnel.
• Before attempting to open the trap, close the inlet valve and the valve in the pressure-balancing line and wait until the trap has cooled to room temperature. Reduce the internal pressure to atmospheric pressure by pushing the cleaning plunger in with your finger so that condensate and air can escape from inside the body. Failure to do so may result in burns or injuries.
• Be sure to use the proper components and NEVER attempt to modify the product.

Parts Inspection Procedure

Part	Description
Body, Cover	Check inside for dirt, grease, oil film, rust or scale
Gaskets	Check for warping or damage
Screen	Check for clogging, corrosion or damage
Float	Check for deformation, damage, oil film or water inside
Plunger O-Ring	Check for warping or damage
Valve Seat Opening	Check for rust, scale, oil film, wear or damage

Troubleshooting

If the expected performance is unachievable after installation of the air trap, check the following table for the appropriate corrective measures to be taken.

Problem	Cause	Remedy
No condensate is discharged (blocked) or discharge is poor	Float is damaged or filled with condensate	Replace the float
	Orifice, screen or piping is clogged with rust, scale or dirt	Clean
	The trap operating pressure exceeds the maximum specified pressure, or there is insufficient differential pressure between the trap inlet and outlet	Compare specifications and actual operating conditions
	Air binding occurs	Check and correct pressure-balancing line and inlet piping arrangement
Air is discharged or leaks from the trap outlet (blowing) (air leakage)	Orifice is clogged or rust and scale have accumulated under the float	Clean
	Orifice is damaged	Replace the orifice
	Float is deformed or coated with scale	Clean or replace the float
	Trap is installed above the maximum allowable inclination angle	Correct the installation
	Vibration of trap occurs	Lengthen inlet piping, then fasten it securely
Air leaks from a place other than the trap outlet	Deterioration of or damage to gaskets	Replace the gaskets
	Improper tightening torque for cover was used	Tighten to the proper torque