Spasak drain valve

以下是关于斯派莎克（Spirax Sarco）疏水阀的综合信息：

1. Product type and characteristics
Spasak drain valves are mainly divided into three categories:
Floating ball drain valves (such as FT14, FT43, FT44): operate by utilizing the density difference between steam and condensate, with built-in stainless steel floating balls and exhaust valves, capable of continuously discharging saturated condensate water, with a maximum displacement of 150000 kg/h.
Thermodynamic steam trap (such as TD42L, TD16): using the principle of thermodynamics, it drives the opening and closing of hardened stainless steel discs through secondary evaporation, suitable for high-pressure and superheated steam environments.
Inverted bucket/bimetallic drain valve: suitable for special working conditions, such as high temperature or corrosive media.
2. Technical parameters
Caliber range: DN15~DN100 (floating ball type), DN15~DN25 (thermal power type).
Pressure rating: PN16~PN40 (floating ball type), up to 80 bar (thermal power type).
Material: The valve body can be made of cast iron, ductile iron, carbon steel or stainless steel, and the internal components are mostly made of stainless steel.
Temperature range: -30~200 ℃ (some models support superheated steam at 150 ℃ @ 0 bar g).
3. Application scenarios
Floating ball type: scenarios that require continuous drainage, such as steam conveying pipes, steam water separators, heating equipment, etc.
Thermodynamic: high-pressure steam system, water hammer or corrosive environment.
Special models: such as FT43-C with steam lock breaking function, suitable for systems with high risk of steam lock.
4. Brand and History
Brand Background: Speisak, founded in 1888, was established in 1937 and launched in 1959. It is a global leader in steam system technology.
Service Network: Covering 33 countries, providing full process services from product to system optimization.
5. Maintenance and Certification
Maintenance: The floating ball structure is simple and only requires regular inspection of the floating ball and exhaust valve; Thermal power type requires cleaning of the disc.
Certification: Compliant with the European Pressure Equipment Directive (PED), with some models meeting ASME standards.

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