DSJ4lH(Y) Water seal shut-off valveDetailed product description：

Application of DSJ4lH (Y) water seal globe valve

The water seal globe valve is suitable for the return water condensation system of thermal power plants with a nominal pressure of PN2.5-6.4MPa and a working temperature of 0-450 ℃, as well as system pipelines that require isolation from the atmosphere in petroleum and chemical industries. It can cut off or connect the medium in the pipeline

Product Features
1. The product is designed and manufactured according to the national standard GB12235, with a novel structure, reasonable material selection, and beautiful appearance. The connection end has flanges and welding, which can be matched according to different user requirements
2. The stuffing box is designed as a water sealed structure, connected with 0.6~1.6Mpa water packing. It has low friction, good sealing, and can isolate the entire system from the atmosphere, ensuring good air tightness
3. The valve stem has undergone quenching and surface nitriding treatment, exhibiting good corrosion resistance and abrasion resistance
4. Compact structure, flexible operation, easy maintenance, long service life
5. The reverse seal is made by connecting the sealing seat with stainless steel threads or welding austenitic stainless steel on the body, ensuring reliable reverse sealing. Packing replacement and maintenance can be carried out without stopping the machine, which is convenient, fast and does not affect the operation of the system

Execution Standard
Design and Manufacturing: JB/T3595
Structural length: GB/T15188.1
Pressure and temperature rating: GB/T3595
Testing and Inspection: GB13927 JB/T9092

Performance parameters of DSJ4lH (Y) water seal globe valve

Model		DS/J61H-25	DS/J61H-40	DS/J61H-64
Work pressure (MPa)		two point five	four	six point four
Applicable temperature (℃)		≤425
Applicable Medium		Water, steam, oil products, non corrosive gases
Material	valve stem	1Cr13 or 2Cr13
	Valve body, valve cover, bracket	WCB25
	Gate plate, valve disc, sealing surface	Cr13 stainless steel or hard alloy
	Valve seat sealing surface	stainless steel
	stem nut	aluminum bronze
	filler	flexible graphite

Main component materials and main uses

valve body	valve cover	valve disc	valve seat	valve stem	filler	Applicable Medium	Applicable temperature (≤℃)
WCB		25+D507MO	25+D577	2Crl3	flexible graphite	Water, oil, steam	four hundred and twenty-five
A105		2Crl3+ Stellite12	2Crl3+ Stellite6	2Crl3	flexible graphite	Water, oil, steam	four hundred and fifty

Main external dimensions, connection dimensions, and quality

Nominal Pressure PN(MPa)

Nominal Diameter DN(mm)

standard value

Reference value

L

D

D1

D2

D6

b

f

n

Z-φd

DO

H

Mass (kg)

2．5

ten

one hundred and thirty

ninety

sixty

forty

sixteen

two

4-φ14

one hundred and twenty

two hundred and seventy-two

six

fifteen

one hundred and thirty

ninety-five

sixty-five

forty-five

sixteen

two

4-φ14

one hundred and twenty

two hundred and seventy-two

six

twenty

one hundred and fifty

one hundred and five

seventy-five

fifty-five

sixteen

two

4-φ14

one hundred and twenty

two hundred and eighty

six

twenty-five

one hundred and sixty

one hundred and fifteen

eighty-five

sixty-five

sixteen

two

4-φ14

one hundred and sixty

three hundred and thirty-two

ten

thirty-two

one hundred and eighty

one hundred and thirty-five

one hundred

seventy-eight

eighteen

two

4-φ18

one hundred and sixty

three hundred and forty-two

l1

forty

two hundred

one hundred and forty-five

one hundred and ten

eighty-five

eighteen

three

4-φ18

two hundred

three hundred and ninety-five

seventeen

fifty

two hundred and thirty

one hundred and sixty

one hundred and twenty-five

one hundred

twenty

three

4-φ18

two hundred and forty

43l

twenty-four

sixty-five

two hundred and ninety

one hundred and eighty

one hundred and forty-five

one hundred and twenty

twenty-two

three

4-φ18

two hundred and eighty

four hundred and fifty-seven

thirty-three

eighty

three hundred and ten

one hundred and ninety-five

one hundred and sixty

one hundred and thirty-five

twenty-two

three

8-φ18

three hundred and twenty

five hundred and five

forty-seven

one hundred

three hundred and fifty

two hundred and thirty

one hundred and ninety

one hundred and sixty

twenty-four

three

8-φ23

three hundred and sixty

five hundred and forty-nine

sixty-two

one hundred and twenty-five

four hundred

two hundred and seventy

two hundred and twenty

one hundred and eighty-eight

twenty-eight

three

8-φ25

four hundred

62l

ninety-six

one hundred and fifty

four hundred and eighty

three hundred

two hundred and fifty

two hundred and eighteen

thirty

three

8-φ25

five hundred

seven hundred and three

one hundred and twenty-eight

two hundred

six hundred

three hundred and sixty

three hundred and ten

two hundred and seventy-eight

thirty-four

three

12-φ25

six hundred and fifty

eight hundred and twenty-eight

one hundred and sixty-eight

4．0

ten

one hundred and thirty

ninety

sixty

forty

thirty-five

sixteen

two

four

4-φ14

one hundred and twenty

two hundred and seventy-two

six

fifteen

one hundred and thirty

ninety-five

sixty-five

forty-five

forty

sixteen

two

four

4-φ14

one hundred and twenty

two hundred and seventy-two

six

twenty

one hundred and fifty

one hundred and five

seventy-five

fifty-five

5l

sixteen

two

four

4-φ14

one hundred and twenty

two hundred and eighty

six

twenty-five

one hundred and sixty

one hundred and fifteen

eighty-five

sixty-five

fifty-eight

sixteen

two

four

4-φ14

one hundred and sixty

three hundred and thirty-two

ten

thirty-two

one hundred and eighty

one hundred and thirty-five

one hundred

seventy-eight

sixty-six

eighteen

two

four

4-φ18

one hundred and sixty

three hundred and forty-two

eleven

forty

two hundred

one hundred and forty-five

one hundred and ten

eighty-five

seventy-six

eighteen

three

four

4-φ18

two hundred

three hundred and ninety-five

seventeen

fifty

two hundred and thirty

one hundred and sixty

one hundred and twenty-five

one hundred

eighty-eight

twenty

three

four

4-φ18

two hundred and forty

43l

twenty-four

sixty-five

two hundred and ninety

one hundred and eighty

one hundred and forty-five

one hundred and twenty

one hundred and ten

twenty-two

three

four

4-φ18

two hundred and eighty

four hundred and fifty-seven

thirty-three

eighty

three hundred and ten

one hundred and ninety-five

one hundred and sixty

one hundred and thirty-five

one hundred and twenty-one

twenty-two

three

four

8-φ18

three hundred and twenty

five hundred and five

forty-seven

one hundred

three hundred and fifty

two hundred and thirty

one hundred and ninety

one hundred and sixty

one hundred and fifty

twenty-four

three

4．5

8-φ23

three hundred and sixty

five hundred and forty-nine

sixty-two

one hundred and twenty-five

four hundred

two hundred and seventy

two hundred and twenty

one hundred and eighty-eight

one hundred and seventy-six

twenty-eight

three

4．5

8-φ25

four hundred

six hundred and twenty-one

ninety-six

one hundred and fifty

four hundred and eighty

three hundred

two hundred and fifty

two hundred and eighteen

two hundred and four

thirty

three

4．5

8-φ25

five hundred

seven hundred and three

one hundred and twenty-eight

two hundred

six hundred

three hundred and sixty

three hundred and ten

two hundred and seventy-eight

two hundred and sixty

thirty-four

three

4．5

12-φ25

six hundred and fifty

eight hundred and twenty-eight

one hundred and sixty-eight

DSJ4lH, DSJ41Y flange type