Temperature Control Self Operated Valve,Temperature Industrial Control Valve

Temperature control self-operated valve,temperature industrial control valve
c. Zzw/ zzwld series control valve
zzw/zzwld series self-temperature control valve is designed and manufactured under the market demand and present condition. This series valve are not in need of any outside energy supply or temperature control system, owing to the inside warm bag filled with a fluid which itself physical and chemical nature or pt100 platinum rtd sensing could automatically close or start the valve and achieve the purpose of auto-control the temperature. This series is widely applied in heating﹑ water﹑cryogen equipment.
　
this series products has zzwp-16b(heating), zzwp-16k(cooling), zzwp-16k3(three-way), zdlwd(electric control type). Pn(mpa): 1.6﹑4.0﹑6.4；dn(mm): 15~150; leakage standards: ⅵ ⅲ； maximum temperature of the valve body: 200celsius.
materials of main parts body: zg230-450, zg1cr18ni9tvi, zg0cr18ni12mo2tvi, ht200 plug: metal parts: 1cr18ni9ti, 0cr18ni12mo2ti soft sealing part: ptfe, graphite + ptfe seat: 1cr18ni9ti, 0cr18ni12mo2ti stem: 1cr18ni9ti, 0cr18ni12mo2ti spring: 60si2mn, 1cr18ni9ti, 50crva shell: aluminum alloy to suppress packing: ptfe, flexible graphite
types
zzwp self-temperature control valve, the temperature setting range: 80-150 degrees celsius. Temperature setting allowable error: + -2celsius(heating), + -40celsius (cooling)
zdlwd electronic single-seat temperature control valve, the temperature setting range of 15-80celsius, allowable error of +/-2celsius (heating), +/-4celsius (cooling).