Armstrong Armstrong 11-LD Stainless Steel Free Floating Lever Liquid Drainer
Armstrong Armstrong 11-LD Stainless Steel Free Float Lever Liquid Drainer Nameplate
Armstrong Armstrong 11-LD Stainless Steel Free Floating Lever Liquid Drainer Packaging

Armstrong Armstrong 11-LD Stainless Steel Free Floating Lever Liquid Drainer

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The Armstrong 11-LD is a high-performance stainless steel free-floating lever liquid drain designed for industrial steam systems, compressed air drainage and other liquid discharge applications. It utilizes an advanced guided lever mechanism to ensure efficient drainage with zero air loss for medium to high duty scenarios such as industrial compressors (up to approximately 1500 hp). Its hermetically sealed, tamper-resistant construction is based on Armstrong's inverted barrel vapor trap technology, providing reliable durability and corrosion resistance, making it a dependable drainage solution in the valve industry. Keywords: armstrong 11-LD, liquid drain, stainless steel valves, vapor trap, high capacity drain.

key feature

  • Efficient drainage design: Elliptical float and high lever system allows opening of large orifices for up to 9,500 lb/hr (approx. 4,309 kg/hr) discharge capacity for industrial grade applications.
  • Zero-loss performance: Automatic draining without timer adjustment ensures tight closure under all conditions and prevents gas or vapor leakage.
  • Durable construction: All stainless steel material for corrosive environments, supports saturated steam service.
  • easy installation: Supports threaded (NPT/BSP) or flanged connections for a wide range of piping systems.
  • safe and reliable: Equipped with guide posts to ensure positive valve closure and reduce the risk of leakage.

technical specification

parameters particulars
Available types 11-LD
makings Body/cap: 304L stainless steel (standard, 316 stainless steel optional); float: 304 stainless steel; valve/seat: 440 stainless steel; lever: stainless steel
connection size Inlet/Outlet: 3/4 inch (20mm); Outlet: 1/2 inch (15mm)
sizes A: 2-3/4 inches (70mm); B: 7-1/4 inches (184mm); Weight: approximately 3.25 lbs (1.5kg)
maximum capacity 9,500 lbs/hour (4,309 kg/hour)
Maximum pressure 570 psig (39 bar); 35 bar at 38°C
Applicable temperature Suitable for steam and liquid environments, depending on pressure
Scope of Application Steam system drainage, air compressors, industrial liquid discharge, etc.

Advantages and Applications

The Armstrong 11-LD Liquid Drainer stands out in the industrial valve market with its high leverage design and stainless steel construction ensuring long term stable operation and reduced maintenance costs. Suitable for use in the chemical, manufacturing, and energy industries, they help optimize system efficiency and reduce energy losses. Ideal if you are looking for a reliable stainless steel steam trap or drain valve, the 11-LD is compatible with a wide range of industrial compressors and piping systems.

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