24/7 Emergency Service
WA# NWINDMI062BE OR CCB# 96672 ID# RCE-17032 CA# 726315 NV# 0062228 DUNS# 82-513-4612
Main Office: (360) 256-0923
Fax: (360) 256-9104
2911 NE 109th ave. Vancouver, WA 98682
Intermittent Blowoff Tank
- Pre-cools condensate prior to drain
- Mixes stored condensate with blowdown to minimize cooling water requirements
- Maintains BTU value of high pressure returns
- Feed condensate to the boiler directly
- Lower Delta T between condensate return and boiler operating temperature
- Suitable for high pressure returns
- Uses continuous blowoff from the boiler to preheat make-up water
- Returns flash steam back to the deaerator
- Maximum 02 of .005 cc/l and zero C02
- Designed, constructed, and stamped for Section VIII, Division I, Unfired Pressure Vessel
- Ten year warranty on pressure vessel and internals
- 1/16″ Corrosion allowance is designed into each pressure vessel
- All undeaerated sections are constructed using stainless steel internals
- Stainless steel tray bundles incorporate riveted design allowing for thermal expansion
Series 550
Tray Type Deaerator and High Pressure Condensation Return
Lower your maintenance cost with Johnston's durable designs to customize each system to maximize your savings. Every System is designed to save you money.
High Pressure Condensate Return
Series 240 & 250
Series 200
Ancillary Equipment
- 20:1 turndown
- Reduces corrosion in boilers, pumps, and pipes
- Suitable for high pressure returns
- Minimal steam requirements over 100:1 turndown
Deaerators
Series 550
Two Stage Tray Type Deaerator
Two Stage Spray Type Deaerator
Series 557
Capacities: 17 – 120 BHP
Inputs from 695,000 to 4,865,000 BTUH
Outputs from 580,000 to 4,040,000 BTUH
Series 285
Continuous Blowoff Heat Recovery
Ancillary Equipment
- High pressure condensate is returned directly to the boiler.
- Deaerator section is only used as make-up water is needed.