WLD1900 | Float Type Liquid Drainers | Liquid Drainers

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WLD1900

Introduction

WLD1900 Series

How It Works

The WLD1900 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

All stainless steel internals
Hardened valve seat for longer service life
Cast Iron body
In-line repairable

Dimension Charts Capacity

Capacity Chart

WLD1900

WLD1900-Series Liquid Drainers have Cast Iron Bodies ••• Parallel Pipe Connection ••• 250 psig Operating Pressures ••• All Stainless Steel Internals. Used for draining liquids from Tanks, Vessels, and piping systems containing pressurized Air or other gases.

Model	Size	Type	Max PMO (psig)
WLD1913-N-015	3/4"	NPT	15
WLD1913-N-090	3/4"	NPT	90
WLD1914-N-200	1"	NPT	200
WLD1914-N-250	1"	NPT	250
WLD1916-N-015	1 1/2"	NPT	15
WLD1915-N-090	1 1/4"	NPT	90
WLD1916-N-250	1 1/2"	NPT	250
WLD1917-N-015	2"	NPT	15
WLD1913-N-250	3/4"	NPT	250
WLD1914-N-015	1"	NPT	15
WLD1915-N-030	1 1/4"	NPT	30
WLD1915-N-200	1 1/4"	NPT	200
WLD1916-N-150	1 1/2"	NPT	150
WLD1916-N-200	1 1/2"	NPT	200
WLD1917-N-150	2"	NPT	150
WLD1917-N-250	2"	NPT	250
WLD1913-N-030	3/4"	NPT	30
WLD1913-N-150	3/4"	NPT	150
WLD1913-N-200	3/4"	NPT	200
WLD1914-N-030	1"	NPT	30
WLD1914-N-090	1"	NPT	90
WLD1914-N-150	1"	NPT	150
WLD1915-N-015	1 1/4"	NPT	15
WLD1915-N-150	1 1/4"	NPT	150
WLD1915-N-250	1 1/4"	NPT	250
WLD1916-N-030	1 1/2"	NPT	30
WLD1916-N-090	1 1/2"	NPT	90
WLD1917-N-030	2"	NPT	30
WLD1917-N-090	2"	NPT	90
WLD1917-N-200	2"	NPT	200

Downloads

Catalog Spec Sheet (pdf)

I&M (pdf)

Product Overview

Features

• All stainless steel internals
• Hardened valve seat for longer service life
• Cast Iron body
• In-line repairable

How It Works

The WLD1900 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.

Capacity in lbs/hr is based on differential pressure across the drainer. Select a model with an equal or higher PMO (max. operating pressure) than the maximum inlet pressure to the drainer. If the pressure to the drainer exceeds the PMO, the drainer may not open. If discharging to atmosphere, the differential pressure is equal to the inlet pressure.

Example:
Required to drain 3,000 lbs/hr at a differential pressure of 5 PSI. The maximum inlet pressure is 30 PSIG.

Select Model:
WLD1916-030, 11/2”, capacity up to 4,710 lbs/hr based on 5 PSI differential pressure.

Dimension and Weights

Pipe Size	PMO (psig)	Weight (lbs)
3/4", 1"	15-150	9
1-1/4"	15-30	9

Pipe Size	PMO (psig)	Weight (lbs)
3/4", 1"	200-250	20
1-1/4"	90-250	21
1-1/2"	15-250	21

Pipe Size	PMO (psig)	Weight (lbs)
2"	15-250	53

Installation and Maintenance

The installation should include isolation valves to facilitate maintenance and 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. Installation may require an equalizing or balancing line connected from top of drainer body to the above piping, for proper drainage.

All working components can be replaced with the drain trap remaining in the pipeline. Repair kits include float, valve seat & disc, and gaskets. For full maintenance details see Installation and Maintenance Manual.

Sample Specification

The WLD1900 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.