Spirax Sarco（斯派莎克工程有限公司）已开始在美国推出其B系列新品——铜制控制阀。
B-Series主要是为带有蒸汽、水、气体及其他液体作业的特殊用途而设计的。它正常运行可承受的最高温度之为204C，最大压力值为27barg。其应用领域包括暖通制冷、食品、饮料、纺织、自动化及相关行业。
B-Series有2-way（二通）和3-way（三通）两种结构类型可供选择。二通结构可在不移动阀门和传动装置的情况下对其塞活阀进行替换。为控制温度而需合并两条水流或改变单流流向时三通结构则更为便宜。
这两种结构都可以通过改变塞或闸的装配和主体塞进行相互的转换。其可调换范围为50：1。
B-Series体积大小在0.5in和2in之间，带有长使用寿命的密封闸。为了确保有效关闭还配有阀或塞得连身设计以及无螺旋底座。其整体结构由铜制阀身、加强腈橡胶膜和300-series的不锈钢头、闸和底座组成。
二通阀结构有相同百分比，线性，和软底座可供选择。三通阀则带有线性特征装置。
Bronze control valve now in the USA
Spirax Sarco has released its new B-Series bronze control valve in the USA. The B-Series is designed for use with steam, water, gases and other liquids for services at a maximum temperature of 204C and a maximum pressure of 27barg. Applications include industrial HVAC, food and beverage, textiles, automotive and institutional industries. The B-Series is available in a 2-way and 3-way configuration. The 2-way valve plug/stem may be replaced without removing the valve or actuator, while the 3-way is suitable where it is necessary to combine two fluids or divert a single fluid for temperature control. Both configurations can be converted between the 2-way and 3-way by changing the plug/stem assembly and body plug. The rangeability is 50:1. The B-Series is available from 0.5in to 2in body sizes, with long-life stem seals, one-piece plug/stem design and non-threaded seat for reliable shut-off. Construction consists of a cast bronze body, a nitrile-reinforced rubber diaphragm and 300-series stainless steel head, stem and seat. The 2-way valve is available in equal percentage, linear and soft-seated valving options, while the 3-way is available with linear characteristic trim.