Armstrong Check Valve Simple Selection Table
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Hydrostatic valve products from Beijing Kangsen Armstrong Machinery Co., Ltd.: Quick reference table for model selection – Inverted drum-type steam hydrostatic valves. Series, Maximum discharge rate in kg/h, Flow direction, Connection type, Maximum allowable pressure in MPa, Maximum allowable temperature in °C, Valve body material, Model, Maximum operating pressure difference in MPa, Diameter: 1/2, 3/4, 1, 1-1/4, 1-1/2, 2; 2-1/2. 800, 9072; Threaded flange. 1.7, 232; A48 CL30 cast material. 814, 1.7; ● ●; 815, ● ● ● ●; 816, ● ●; 880, 1996; 881F, ● ● ●; 881, ● ● ●; 882, ● ● ●; 883 ● ●
Series Maximum flow rate kg/h Connection type Maximum allowable pressure MPa Maximum allowable temperature °C Valve body material Model Maximum operating pressure difference MPa Diameter 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 800 9072 Threaded flange 1.7 232 A48 CL30 cast 814 1.7 ● ● 800 9072 Threaded flange 1.7 232 A48 CL31 cast 815 1.7 ● ● ● ● 800 9072 Threaded flange 1.7 232 A48 CL32 cast 816 1.7 ● ● 880 1996 Threaded flange 1.7 232 A48 CL33 cast 881F 1.7 ● ● ● 880 1996 Threaded flange 1.7 232 A48 CL34 cast 881 1.7 ● ● ● 880 1996 Threaded flange 1.7 232 A48 CL35 cast 882 1.7 ● ● ● 880 1996 Threaded flange 1.7 232 A48 CL36 cast 883 1.7 ● ●
Why is the format always wrong after I upload it? I hope someone experienced can give me some advice.
Model Maximum flow rate, kg/h Connection type Maximum allowable pressure, MPa Maximum allowable temperature, °C Valve body material 814 9072 Threaded flange 1.7 232 A48 CL30 cast 815 9072 Threaded flange 1.7 232 A48 CL30 cast 816 9072 Threaded flange 1.7 232 A48 CL30 cast 881F 1996 Threaded flange 1.7 232 A48 CL30 cast 881 1996 Threaded flange 1.7 232 A48 CL30 cast 882 1996 Threaded flange 1.7 232 A48 CL30 cast 883 1996 Threaded flange 1.7 232 A48 CL30 cast
Model Maximum operating pressure difference in MPa Diameter 1/2 3/4 1 814 1.7 ● 815 1.7 ● 816 1.7 881F 1.7 ● ● ● 881 1.7 ● ● ● 882 1.7 ● ● 883 1.7 ● ●
Model Caliber Caliber Caliber Caliber Caliber 1 1/4 1 1/2 2 2 1/2 814 ● 815 ● ● ● 816 ● ● 881F 881 882 ● 883
Excuse me, in our facility, the valve element of the drain valve located after the heat exchanger temperature control valve is often damaged due to water hammer. Is there any solution? Previously, float-type ones were used; now bellows-type ones are used – they’re pretty much the same, and low-pressure saturated steam is utilized.
Whether it is a diaphragm type or a float type, there is a sealed chamber, and water accumulation must be eliminated first. If the water accumulation problem cannot be resolved, you can consider the Armstrong inverted bucket trap recommended by the poster. The bucket in an inverted bucket trap is open; due to the absence of a sealed chamber, its resistance to water hammer is much greater than that of float valves and diaphragms (which are a type of thermostatic device). However, the selection is crucial. The table provided by the original poster can only be used for reference; it is not applicable when making a selection. Feel free to contact me if you have any questions.