解决热膨胀问题
Solving Thermal Expansion Problems.

　　通过在任何住宅水系统上安装一个防回流阀，可以形成一个无法适应热膨胀的封闭系统。但是，美国瓦茨提供几种解决方案，有助于减轻由于热膨胀形成的过度压力。
　　By installing a backflow preventer on any residential water system, you create a closed system that won't accommodate thermal expansion. However,Watts offers several solutions to help you relieve excess pressure due to thermal expansion.

Watts® Governor 80浮球阀和安全阀
Watts® Governor 80 Ball Cock & Relief Valve

　　一种三用产品，具有马桶水箱浮球注水阀，反虹吸防回流阀，和热膨胀安全阀。配置Governor 80产品，通过将室内水系统静态压力控制和限制在符合有关管道规定的80 psi，就不再需要膨胀罐，辅助安全阀及其排泄管道。
　　A triple purpose product featuring a toilet tank ball cock fill valve, anti-siphon backflow preventer, and a thermal expansion relief valve. The Governor 80 eliminates the need for expansion tanks, auxiliary relief valves, and their discharge lines by governing and limiting the pre-set static pressure in the domestic water system to 80 psi, as required by plumbing codes.

• 最大工作温度：43^oC
  Maximum operating temperature: 110^oF (43^oC).
• 标准高度：250, 292, 318mm
  Standard heights: 10", 11¹/₂", 12¹/₂" (250, 292, 318mm).
• 美国食品及药物管理局(FDA)认证
  FDA Approved.
• 美国卫生工程师协会(ASSE) 1002标准认证
  ASSE 1002.

系列DET饮用水膨胀罐，适用于室内热水系统
Series DET Potable Water Expansion Tank For Domestic Hot Water Systems

　　当储存在热水器容器中的水加热时，这种膨胀罐用于吸收由此体积增加的水。通过这种功能，DET系列将系统压力保持在温度压力安全阀的排放设置下。
　　An expansion tank designed to absorb the increased volume of water created when water in a storage tank is heated. By doing so, the DET keeps the system pressure below the relief setting of the Temperature and Pressure relief valve.

• 预压钢罐，配置膨胀隔膜，防止接触到水和空气，确保系统的使用寿命长。
  Pre-pressurized steel tank with expansion membrane that prevents contact of water and air, ensuring long life for the system.
• 热熔融环氧树脂衬里。
  Thermally-fused epoxy liner.
• 可提供在线、无需站立型号
  In-line and free standing models available.
• IAPMO认证。
  Listed by IAPMO.
• 现场可调节预注水。
  Field-adjustable pre-charge.

系列530压力安全阀
Series 530 Pressure Relief Valve

　　有效的压力释放，仅适用于由于封闭系统中热膨胀产生的压力。无需配置一根杆。
　　Designed to effectively relieve pressure due only to thermal expansion in a closed system. Furnished without a lever.

• 调解压力范围：50-175 psi (3 - 12 bars).
  Adjustment Pressure Range: 50-175 psi (3 - 12 bars).