Skip to content
98% Separation EfficiencyBuilt-in Air Trap

TLV DC3A Cyclone Separator Trap for Air

TLV DC3A cyclone separator with built-in free float air trap. Features 98% condensate separation efficiency, 10 barg PMO, and ductile cast iron body for air lines.

TLV DC3A Cyclone Separator Trap for Air

TLV DC3A cyclone separator and air trap incorporated into one unit provide high-quality dry air. For use on mains and branches, it utilizes centrifugal force to separate condensate from air and features a built-in free float air trap for the automatic discharge of the collected condensate. The separator achieves condensate separation efficiency as high as 98%.

TLV DC3A cyclone separator trap product photo

Features

  • Separator achieves condensate separation efficiency as high as 98%.
  • Self-modulating free float air trap continuously discharges condensate as it is separated.
  • Precision-ground spherical float and positive three-point seating provide a complete seal, even under no-load conditions.
  • The large surface area of the built-in screen guarantees trouble-free service.
  • Only one moving part, the free float, prevents concentrated wear and increases service life.

Specifications

  • Connection: Screwed, Flanged
  • Size: Screwed 1/2", 3/4", 1" / Flanged DN 15, 20, 25, 40, 50, 65, 80, 100
  • Maximum Operating Pressure (PMO): 10 barg
  • Minimum Operating Pressure: 0.1 barg
  • Maximum Operating Temperature (TMO): 100 °C
  • Applicable Fluid: Air

WARNING

Do not use for toxic, flammable or otherwise hazardous fluids. To avoid abnormal operation, accidents or serious injury, DO NOT use this product outside of the specification range. Local regulations may restrict the use of this product to below the conditions quoted.

Configuration and Components

TLV DC3A configuration diagram

No.DescriptionMaterialDIN/ENASTM/AISI
1Body (Screwed / Flanged)Ductile Cast Iron0.7040 / 0.7043A536 / A395
2Separator BodyCast Iron / Ductile Cast Iron0.6025 / 0.7043A126 Cl.B / A395
3Trap CoverCast Iron / Ductile Cast Iron0.6025 / 0.7043A126 Cl.B / A395
4SeparatorCast Stainless Steel1.4312A351 Gr.CF8
5FloatStainless Steel SUS316L1.4404AISI316L
6Float CoverCast Iron / Ductile Cast Iron0.6025 / 0.7043A126 Cl.B / A395
7Guide PinStainless Steel SUS3041.4301AISI304
8Trap Valve SeatNitrile Rubber / Stainless Steel- / 1.4305D2000BF / AISI303

TLV DC3A exploded view diagram

Dimensions

Screwed:TLV DC3A screwed dimensions diagram

Flanged:TLV DC3A flanged dimensions diagram

Flow Rates and Capacity

TLV DC3A air flow rate chartTLV DC3A condensate discharge capacity chartTLV DC3A pressure loss chart

Proper Installation

  • Installation, inspection, maintenance, repairs, disassembly, adjustment and valve opening/closing should be carried out only by trained maintenance personnel.
  • Take measures to prevent people from coming into direct contact with product outlets.
  • 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 from the product.
  2. Before installing the separator, blow out the inlet piping to remove any piping scraps, dirt and oil. Close the inlet valve after blowdown.
  3. Install the product at the point on the piping where the separation of condensate will have the greatest effect on efficiency. For example, on a main or branch at the inlet of equipment requiring high-quality dry air.
  4. Install the separator trap so the arrow on the product is pointing in the direction of flow.
  5. The product should be inclined no more than 10° horizontally and front-to-back.
  6. Install a main outlet valve and main outlet piping, and condensate outlet fittings and condensate outlet piping.
  7. To facilitate inspection and maintenance, install a union at the condensate outlet and ensure that there is sufficient space for maintenance.
  8. Open the inlet valve and outlet valves and check to make sure that the separator trap functions properly.

Operational Check

A visual inspection can be carried out to aid in determining the necessity for immediate maintenance or repair, if the trap is open to atmosphere. Operational inspections should be performed at least twice per year, or as called for by trap operation conditions.

ConditionCharacteristic
NormalCondensate is discharged continuously with flash steam and the sound of flow can be heard. If there is very little condensate, there is almost no sound of flow.
BlockedNo condensate is discharged. The trap is quiet and makes no noise, and the surface temperature of the trap is low.
BlowingLive steam or air continually flows from the outlet and there is a continuous metallic sound.
LeakageLive steam or air is discharged through the trap outlet together with the condensate and there is a high-pitched sound.

Inspection and Maintenance

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.

Parts Inspection ProcedureCheck Criteria
Body, Cover(s)Check inside for damage, dirt, grease, oil film, rust or scale
GasketsCheck for warping or damage
ScreenCheck for clogging, corrosion or damage
FloatCheck for deformation, damage, oil film or water inside
Valve SeatCheck for rust, scale, oil film, wear or damage

Troubleshooting

ProblemCauseRemedy
No condensate is discharged or discharge is poor (blocked)Float is damaged or filled with condensateReplace the float
Trap valve seat port, screen or piping is clogged with rust or scaleClean
The trap operating pressure exceeds the maximum specified pressure, or there is insufficient pressure differentialCompare specifications and actual operating conditions
Air is discharged or leaks from the trap outlet (blowing / leakage)Rust and scale have accumulated around the trap valve seat or under the floatClean
The trap valve seat is damagedReplace with a new trap valve seat
Float is deformed or coated with scaleClean or replace the float
Separator is installed above the maximum allowable inclination angleCorrect the installation
Air is leaking from sealing surfacesDeterioration of or damage to gasketsReplace with new gaskets
Improper tightening torques were usedTighten to the proper torque
Water is mixed with the air at the separator outletAir flow velocity is too highTake steps necessary to lower the flow velocity