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Release Date：2026-09-30
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Description
l Adopt straight flow body. There are two kind of body, free forging and casting body
l Pressurized seal design, more reliable the seal.
l When boiler hydraulic test, we put the isolating gate into the valve body to isolate water.
l During the normal operation, we put the diversion sleeve into the valve body. The valve is used as parts of pipe.
l The sealing surface is welded with SS. Wear resistant and corrosion resistant, reliable sealing, long service life.
l Provide special tools for assembly and dismounting.
Product structure drawing
Type: DSD61H, SD61H
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 |
12Cr1MoV/F22/WC9 | 12Cr1MoV/F22/WC9 | 38CrMoAlA | A105/WCB | 15CrMo/WC6 |
F91/C12A | F91/C12A | F91/38CrMoAlA | A105/WCB | F22/WC9 |
F92 | F92 | F92 | A105/WCB | F22/F91/WC9 |
Technical specification and end dimension and overall dimension
Nominal Pressure | P55140V/2000LbSPL | P55170V/2500LbSPL | P58270V/3000LbSPL | P62270V/4500LbSPL | ||||||||
Shell test MPa | 38.8 | 45.5 | 75.5 | 90 | ||||||||
Seal test MPa | 17.5 | 21.5 | 33.8 | 33.8 | ||||||||
Nominal diameter | d | D | L | d | D | L | d | D | L | d | D | L |
200 | 188 | 249 | 711 | 196 | 278 | 762 | 197 | 285 | 762 | 197 | 285 | 762 |
225 | 212 | 278 | 864 | 234 | 330 | 914 | 216 | 310 | 914 | 216 | 310 | 914 |
250 | 252 | 330 | 864 | 250 | 357 | 914 | 235 | 335 | 914 | 235 | 335 | 914 |
275 | 270 | 357 | 991 | 264 | 383 | 1041 | 273 | 385 | 1041 | 273 | 385 | 1041 |
300 | 325 | 433 | 991 | 305 | 433 | 1041 | 305 | 433 | 1041 | 305 | 433 | 1041 |
350 | 349 | 457 | 1067 | 329 | 457 | 1067 | 330 | 465 | 1067 | 330 | 465 | 1067 |
400 | 367 | 487 | 1130 | 359 | 508 | 1130 | 387 | 540 | 1130 | 387 | 540 | 1130 |
Remark: Above data only for reference, we can provide other different design according to the customer’s special requirements.
Hydraulic test isolation valve for secondary heating steam pipe system
再热器水压试验堵阀
Description
l Adopt straight flow body. There are two kind of body, free forging and casting body
l Pressurized seal design, more reliable the seal.
l When boiler hydrostatic test, we put the isolating gate into the valve body to isolate water.
l During the normal operation, we put the diversion sleeve into the valve body. The valve is used as parts of pipe.
l The sealing surface is welded with SS. Wear resistant and corrosion resistant, reliable sealing, long service life.
l 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 |
Technical specification and end dimension and overall dimension
Nominal Pressure | PN63/400Lb | PN100/600Lb | P5550V/900LbSPL | P5860V/1500LbSPL | P6170V/2500LbSPL | |||||||||||
Shell test MPa | 9.5 | 15 | 15.5 | 23.3 | 38.8 | |||||||||||
Seal test MPa | 7 | 11 | 6.3 | 7.5 | 8.8 | |||||||||||
Nominal diameter | d | D | L | d | D | L | d | D | L | d | D | L | d | D | L | |
400 | 385 | 415 | 900 | 380 | 415 | 900 | 380 | 415 | 900 | 370 | 415 | 900 | 360 | 415 | 900 | |
450 | 430 | 462 | 1000 | 425 | 462 | 1000 | 425 | 462 | 1000 | 420 | 462 | 1000 | 410 | 462 | 1000 | |
500 | 480 | 520 | 1100 | 476 | 520 | 1100 | 476 | 520 | 1100 | 470 | 520 | 1100 | 460 | 520 | 1100 | |
550 | 526 | 565 | 1100 | 520 | 565 | 1100 | 520 | 565 | 1100 | 510 | 565 | 1100 | 500 | 565 | 1100 | |
600 | 570 | 615 | 1200 | 560 | 615 | 1200 | 560 | 615 | 1200 | 540 | 615 | 1200 | 525 | 615 | 1200 | |
650 | 630 | 670 | 1300 | 620 | 670 | 1300 | 620 | 670 | 1300 | 600 | 670 | 1300 | 590 | 670 | 1300 | |
700 | 670 | 720 | 1350 | 660 | 720 | 1350 | 660 | 720 | 1350 | 630 | 720 | 1350 | 620 | 720 | 1350 | |
800 | 775 | 820 | 1400 | 770 | 820 | 1400 | 770 | 820 | 1400 | |||||||
1000 | 998 | 1080 | 1600 | 990 | 1080 | 1600 | 990 | 1080 | 1600 | |||||||
Remark: Above data only for reference, we can provide other different design according to the customer’s special requirements.
