Hydraulic test isolation valve for secondary heating steam pipe system
Description
Adopt straight flow body. There are two kind of body, free forging and casting body
Pressurized seal design, more reliable the seal.
When boiler hydrostatic test, we put the isolating gate into the valve body to isolate water.
During the normal operation, we put the diversion sleeve into the valve body. The valve is used as parts of pipe.
The sealing surface is welded with SS. Wear resistant and corrosion resistant, reliable sealing, long service life.
Provide special tools for assembly and dismounting.
Product structure drawing
Type: DSD61H, SD61H
DSD61H (Forging body, BW) SD61H (Casting body, BW)
Design standard
Design & manufacture | End to end dimension | End dimension | Inspection and test | Press-temp ratings |
NB/T47044 | NB/T47044 | NB/T47044 | NB/T47044 | NB/T47044 |
ASME B16.34 | ASME B16.10 | ASME B16.25 | API 598 | ASME B16.34 |
Main parts material
Body | Bonnet | Four piece ring | Isolating gate | Diversion sleeve |
A105/WCB | A105/WCB | 38CrMoAlA | A105/WCB | A105/WCB |
12Cr1MoV/F22/WC9 | 12Cr1MoV/F22/WC9 | 38CrMoAlA | A105/WCB | 15CrMo/WC6 |
F91/C12A | F91/C12A | F91/38CrMoAlA | A105/WCB | F22/WC9 |