ANSI/NFPA T 3.21.4 R2-2000氣動(dòng)閥.NFPA/T 2.6.1 R2-2000補(bǔ)充件:液動(dòng)元件壓力額定值.檢驗(yàn)疲勞和確定含金屬外殼的液動(dòng)氣動(dòng)閥的壓力的碎Pneumatic valve-Pressure rating supplement to NFPA/T2.6.1 R2-2000,Fluid power components-Method for verifying the fatigueestablishing the burst pressure ratings of the pressure containing envelope of a metal fluid power pneumatic valve
BS 4151-1967輸入信號為3至151b/in壓力計(jì)的氣動(dòng)閥定位器的評定方法Method of evaluating pneumatic valve positioners with input signal of 3 to 15 lbf/in