Pneumatic High Temperature Regulating Valve
Keywords: metering pump accessories
Classification:
Pneumatic control valve
- DESCRIPTION
-
Technical parameters of pneumatic high temperature regulating valve
Nominal diameter (DN) 20253240506580
Valve seat diameter (dn) 20253240506580
Rated flow coefficient (KV) single seat 6.91117.627.54469110
Sleeve 6.31016254063100
Allowable pressure difference (MPa) single seat 3.83.23.02.01.81.51.4
Socket 6.46.45.25.24.64.63.7
Nominal pressure (MPa) 1.6, 2.5, 4.0, 6.4,
Rated stroke (mm) 16 25 40
Actuator model ZHA/B-22ZHA/B-23 ZHA/B-34
Bonnet type: high temperature type (+250～+450℃)
Gland type Bolt pressing type
Sealing packing V-type polytetrafluoroethylene packing, V-type flexible graphite packing
Valve core form: single seat type, sleeve type
Flow characteristics equal percentage, linear type
Pneumatic high temperature regulating valve actuator
Configuration Actuator Category Multi-Spring Diaphragm Actuator
Actuator model ZHA/B-22ZHA/B-23ZHA/B-34ZHA/B-45
Effective area (cm2)350 350 560 900
Stroke (mm) 10, 16 24 40 40, 60 100
Spring range (KPa) 20～100 (standard), 20-60, 60-100, 40-200, 80-240
Diaphragm material: nitrile rubber sandwiched with nylon cloth, ethylene propylene rubber sandwiched with nylon cloth
Air supply pressure 140~400KPa
Air source interface RC1/4"
Ambient temperature -30～+70℃
Can be equipped with accessories positioner, air filter pressure reducer, position retaining valve, travel switch, valve position transmitter, handwheel mechanism, etc.
Functional form: air-closed type (B)—the valve position is open (FO) when the air is lost; air-opening type (K)—the valve position is closed (FC) when the air is lost.
Pneumatic high temperature regulating valve parts materials
Serial number Part name Part material
1 Valve body WCB(ZG25)CF8(304)CF8M(316)
2 gasket 304 304 316
3 valve seat/sleeve 304 304 316
4 valve core 304 304 316
5 guide sleeve/cap 304 304 316
6. Sealing middle gasket: PTFE, flexible graphite, para-polystyrene
7 Valve cover 304 304 316
8 valve stem 304 304 316
9Sealing packing PTFE, flexible graphite
10 Packing gland 304 304 316
Welcome to negotiate consultation
Address: Floor 1, Building 1, No.21, Performance Road, Baoshan District, Shanghai
Telephone:021-56467898
Mobile:17302165706Ms. Gu
18501628796Manager Li
Fax: 021-66125728
Sweep the attention to us