Affiliate classification:
Butterfly ValvesSummary information:
DOCN Valve High performance butterfly valve adopt offset stem, eccentric disc, valve seat with lip seal, which may compensate for the temperature and pressure change and have two types of soft-seal and hard-seal, which seal structure is of bidirectional s
Technical Data
Model | DC5811 |
Nominal Size | 3" 24" 80A 600A, i.e., DN80 DN600 |
Disc form | Eccentric type segmental ball disc |
Trim materials Trim treatment | See Table1 Operating pressure-temperature for Standard Material Combination . |
Pressure Ratings | ANSI Class 150, 300; PN1.6, 4.0 |
Connection | Clamped Style(RF、MFM)、 Flange(RF、MFM) |
Dimension | See pages 9. |
Body & Bonnet Material | WCB, CF8, CF8M, and other alloy steels. See Tables 1and 2 for their operating pressure-temperature range. |
Bonnet type | Standard type : 3" 6"(80A 150A) -45~+500℃ 8" 24"(200A-600A) -45~+450℃ lengthened type : 3" 24"(80A 600A) -45℃ Please notice the operating pressure-temperature limitation for each material |
Packing | See Fig. 3 for selection. |
Gasket | See Fig. 4 for selection. |
Painting color | Silver grey epoxy resin (Munsell N-6 Epoxy resin) group is standard. In the case of stainless steel body, no painting. |
Actuator
Type Specification | Cylinder type | |
Spring return type | Double acting type | |
Function | Modulation、On-off | |
Air supply pressure | 0.4~0.7MPa | |
Angle rotation | 60 or 90 ℃ | |
Direct action | Air to Close | Valve opens or closes along with input positioner signal increase |
Reverse action | Air to open | |
Lag | 1.5% of full stroke with positioner | |
Linearity | 2% of full stroke with positioner | |
Allowable Ambient Temp. | -20~+60℃ | |
Painting | Silver epoxy resin | |
