美國阿姆斯壯GP2000蒸汽先導(dǎo)式減壓閥現(xiàn)貨優(yōu)勢(shì),廠家直銷 上海阿姆斯壯Armstrong閥門，美國Armstrong減壓閥，阿姆斯壯GP2000減壓閥，阿姆斯壯GP2000蒸汽減壓閥 GP-2000 系列先導(dǎo)薄膜式蒸汽減壓閥 以前，先導(dǎo)式減壓閥在其主閥操作部主要是使用活塞， 但隨著時(shí)代的要求，蒸汽系統(tǒng)的質(zhì)量不斷提高，也要求減壓閥具有更高的控制性能。GP-2000蒸汽減壓閥在其主閥操作部取代活塞， 使用膜片，先導(dǎo)薄膜式提高Cv值，對(duì)一次側(cè)壓力變化和二次負(fù)荷的變動(dòng)也具有更高的控制性能。 阿姆斯壯GP2000減壓閥特點(diǎn) · 較大減壓比高這20: 1 ， 過去的兩段減壓現(xiàn)在用一段即可實(shí)現(xiàn)。 · 由于膜片大，又采用外部檢測(cè)構(gòu)造，可以控制穩(wěn)定的二次側(cè)壓力。 · 由于Cv值大，流量及控制能力的飛躍提高， 比通常的公稱通徑小 1~2個(gè)號(hào)碼的產(chǎn)品也可使用。 · 由于閥門為單球形，其密封性提高，滲漏量極少。 . 可管理0.02MPa以下的低壓。 GP-2000 Externally Piloted Pressure-Reducing Valves For steam service The GP-2000 is a high-performance, externally piloted reducing valve for large-capacity requirements. Typical use is on intermittent service, including applications such as heat exchangers, steam coils, rotating dryers, process equipment and heating systems. With a 20:1 rangeability and high Cv, the GP-2000 is reliable and accurate ( /-1% of pressure set point from 5% to of flow) over a long, trouble-free service life. Hardened stainless steel working parts are renewable in-line. The GP-2000 is single-seated for dead-end service, and it is available with both NPT (1/2"–2") (15–50 mm) and flanged connections in 2"–6" sizes (50–150 mm). GP2000蒸汽減壓閥