Filter By
Connection Size
Operating Condition
Load  
Filter
WLD1800

WLD1800 Series





How It Works

The WLD1800 Series liquid drainers contain a float-operated valve. When liquid enters the drainer, the float rises opening the valve which allows liquid to be drained.



Features
  • Stainless steel body
  • All stainless steel internals for longer service life
  • Guided float ensures proper valve seating on every cycle
  • Repairable unit available (WLD1800R)


Dimension Chart

Capacity Chart


WLD1800

The WLD1800 Drainer contain a stainless steel float and hardened stainless steel seat and disc to drain out liquids from pressurized piplines, tank, and vessels without the loss of the pressured gas. Available in either a repairable (WLD1800R) or a non-repairable (WLD1800) version. The all stainless steel construction allows them to be used in extremely corrosive environments. The WLD1800 is seal welded and therefore non-repairable.

ModelSizeTypeOrifice SizeMax PMO (psig)Max Capacity @ Max PMO (lb/hr)
WLD1812-N3/4" x 3/4"NPT.078"400
WLD1813-N1/2" x 1/2"NPT.078"400
WLD1831-N3/4" x 1/2"NPT.125"175
WLD1811-N3/4" x 1/2"NPT.078"400
WLD1833-N1/2" x 1/2"NPT.125"175
WLD1832-N3/4" x 3/4"NPT.125"175
WLD1821-N3/4" x 1/2"NPT.101"255
WLD1822-N3/4" x 3/4"NPT.101"255
WLD1823-N1/2" x 1/2"NPT.101"255
Downloads
Catalog Spec Sheet (pdf)
I&M (pdf)
Condensed I&M (pdf)
Product Overview
The WLD1800 Series are used on industrial air and gas applications for drainage of liquid from systems.
Features
• Stainless steel body
• All stainless steel internals for longer service life
• Guided float ensures proper valve seating on every cycle
• Repairable unit available (WLD1800R)
How It Works
The WLD1800 Series liquid drainers contain a float-operated valve. When liquid enters the drainer, the float rises opening the valve which allows liquid to be drained.
Selection / Sizing / Capacities
Determine the capacity (lbs/hr) required at the specified differential pressure. Locate differential pressure on capacity chart; move down column to capacity required. Make sure to select the correct model based on the maximum inlet pressure.

Example:
Required to drain 1,000 lbs/hr at a differential pressure of 200 PSI. The maximum inlet pressure is 250 PSIG.

Select Model:
WLD1822-N  3/4" x 3/4" (non-repairable) or WLD1822R-N  3/4" x 3/4" (repairable); capacity up to 1,200 lbs/hr based on 200 PSI differential pressure.

* PMO based on a liquid with a specific gravity of 1.0. Consult factory for the PMO of a liquid with specific gravity less than 1.0.

Notes:   To obtain capacity with a liquid other than water, multiply water capacity by correction factor.
Dimension and Weights
Installation and Maintenance
The installation should include an in-line strainer. The trap must be level and upright for the float mechanism to operate. Trap must be adequately sized and properly located in the system.

The WLD1800 is non-repairable. The WLD1800R is fully repairable and all working components can be replaced. Repair kits include float, lever & seat assembly, and gaskets. For full maintenance details see Installation and Maintenance Manual.
Sample Specification
The liquid drain trap shall have a guided-float operation with a tamper-proof seal-welded stainless steel body and all stainless steel internals. The unit shall be available with an in-line repairable version. All units to be equipped with FNPT threaded end connections.