DKJ61 vacuum isolation globe valve

 

♦Product overview

Th© valve is suitable for the working temperature less than 400 degrees C and less than 550 degrees C. working medium for water, steam and oil pipeline, as the opening and closing device, especially for thermal power plant, medicine, paper and olher steam turbine condensing and vacuum negaiive pressure sysiem, io play a vacuum isolation and sealing effect.

♦Product features

1. Structure form vacuum sealing gate valve a stuffing vacuum sealing device and parallel double gate plate structure, vacuum sealing cut-off valve a stuffing vacuum sealing device and straight through lifting structure.
2. Drive mode： manual, electric, gear transmission.
3. Connection mode： socket welding connection, flange connection, butt v/eldmg connection
4. A floating sealing mechanism is formed by combination of ram, gu：de frame and spring, and self compensation can be achieved after friciion.
5. Guide frame and valve body guide movement, ensure double gate simultaneous opening and closing.
6. Vacuum isolation stop valve: valve stem and disc adopt dynamic connection, valve and valve seat vertical seal, opening and closing stroke and valve height are small.
7. A vacuum sealing device is set up in the packing letter. The high strength flexible factory ink clip nickel wire expansion filler and alloy nickel wire mesh coated modified metal polytetrafluoroethylene filling and fat sealing ring were installed, and high vacuum sealed silicone grease was injected between the packing and the seal ring to improve the seal between the filler and the stem, so that lhe height of lhe system and the atmosphere were separated.

♦Performance specif cation

product type	Test of shell strength	(MPa) Upper seal test	(MPa) Seal test	(P) Applicable temperature
DKJ61H-40	6.0	4.4	Water, steam, air	W400
DKJ61H-64	9.6	7.0
DKJ61H-100	15.0	11.0
DKJ61H-401	6.0	4.4	Water, steam, air	W550
DKJ61H-641	9.6	7.0
DKJ61H-100I	15.0	11.0

 

♦Materials of main parts

Part name	body, cover	slem	clack	Sealing surface	Stem nut	filler	A fastening
DKJ61H-C	25 或 WCB	2Cr13	25	H: Stainless steel	Aluminum bronze	Expanded composite graphite	High quality carbon steel
DKJ61Y-I	Chromium molybdenum copper	25Cr2Mo1VA	12Cr1Mo1VA	Cemented carbide			AlCuCr

♦Main shape size and connection size

Nominal diameter DN(mm)	(mm)								(Kg) weight
	L	H	D	d	D1	I	a	DO
DKJ61-40
10	130	245	36	11	18.4	10	37° 30′	12C	6.5
15	130	245	36	16	22.5	10	37° 30*	12C	7
20	150	265	44	21	28.5	11	37° 30，	16C	7.8
25	160	270	48	26	34.5	12	37° 30′	20C	8.5
32	180	285	48	34			37° 30′	20C	12
40	200	320	55	40			37° 30′	24C	15
50	230	365	64	48			37° 30′	32C	25
65	290	410	82	66			37° 30′	30C	39
80	310	430	95	78			37° 30*	30C	50
100	350	470	117	100			37° 30′	35C	65
125	400	500	143	126			37° 30′	35C	72
150	480	533	167	150			37° 30,	40C	84
DKJ61-64
10	130	245	36	10	18.4	10	37° 30′	12C	6.5
15	130	245	36	15	22.5	10	37° 30′	12C	7
20	150	265	44	20	28.5	11	37° 30′	16C	7.8
25	160	270	48	25	34.5	12	37° 30*	20C	8.5
32	180	280	48	33			37° 30′	20C	13
40	260	320	55	39			37° 30*	24C	17
50	300	365	64	48			37° 30′	32C	28
65	340	410	82	65			37° 30″	32C	41
80	380	430	95	76			37° 30′	36C	52
100	430	470	117	98			37° 30’	40C	68
125	500	500	143	123			37° 30′	40C	77
150	550	533	167	148			37° 30′	50C	89
DKJ61-100
10	130	245	36	10	18.4	10	37° 30′	12C	7
15	130	245	36	14	22.5	10	37° 30′	12C	7.6
20	150	265	44	20	28.5	11	37° 3CT	16C	8.7
25	160	270	48	25	34.5	12	37° 30′	20C	10.5
32	180	285	48	32			37° 30′	20C	16
40	260	320	55	38			37° 30′	24C	22
50	300	355	64	48			37° 30′	32C	33
65	340	410	82	63			37° 30’	32C	47
80	380	430	95	74			37° 30*	36C	61
100	430	470	117	97			37° 30′	40C	73
125	500	500	143	123			37° 30*	40C	79
150	550	533	167	148			37° 30′	50C	94