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    Butterfly Valve Series

    Butterfly valve is a kind of valve to open, close or regulate the flow of medium by reciprocating the disc type opening and closing parts about 90°.

    Ball Valve Series

    Ball valve, the opening and closing parts (ball) driven by the valve stem, and around the ball valve axis for rotary motion of the valve. 

    Gate Valve Series

    Gate valve is an opening and closing member of the gate, the movement direction of the gate is perpendicular to the direction of the fluid, the gate valve can only be fully open and fully closed, can not be used for regulation and throttling. 

    Globe Valve Series

    Globe valves, also known as cut-off valves, are forced-sealed valves, so when the valve is closed, pressure must be applied to the valve flap to force the sealing surface not to leak. 

    Check Valve Series

    Check valve refers to the opening and closing parts for the round valve and rely on their own weight and media pressure to produce action to block the medium backflow of a valve. 

    Regulating Valve Series

    Regulating valve refers to the adjustment of medium flow, pressure, temperature, liquid level and other process parameters in the field of industrial automation process control, according to the control signal in the automation system, automatically adjust the opening of the valve, so as to realize the adjustment of medium flow, pressure, temperature and liquid level. ​

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    About Us

    Dianjian Valve Group Co.LTD. (referred to as "Dianjian Valve") was founded in 2002, is a collection of research and development, design, manufacturing, sales and service in one of the specialized valve industry enterprises, the registered capital of 108 million yuan, the group's headquarters is located in Longwan District, Wenzhou City, Zhejiang Province, Yongxing Street, Hongkong New Area, the production base is concentrated in the Lianshe City, Lishui City, Zhejiang Province, Liandu District.

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    It is a great honor to meet with all of you in DECC to work and start a business together! Ltd. ("DECC" for short) is a dream enterprise, welcome to come to DECC to share the joy of work and entrepreneurship with all of you who have a dream.

    Corporate Culture

    "Sincerity is eternal, innovation is infinite", be the person who puts people's mind at ease, do the thing that puts people's mind at ease.

    Development History

    Dianjian Valve Group Co.LTD. (referred to as "Dianjian Valve") was founded in 2002, is a collection of research and development, design, manufacturing, sales and service in one of the specialized valve industry enterprises, the registered capital of 108 million yuan, the group's headquarters is located in Longwan District, Wenzhou City, Zhejiang Province, Yongxing Street, Hongkong New Area, the production base is concentrated in the Lianshe City, Lishui City, Zhejiang Province, Liandu District.

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    Dianjian Valve Group has 17 existing utility model patents (including 7 in Lishui), is a member of Sinopec's first-class supply network, and Dianjian Lishui was awarded the Small and Medium-sized Science and Technology Enterprise of Zhejiang Province in 2021.

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    "High-quality consciousness, sincere service", DEC Valve Group is looking forward to your feedback and suggestions.

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ZJHM

Sleeve type regulating valve

ZJHM sleeve type regulating valve small shape, light body, high performance, large capacity, is in line with IEC standards of the new generation of general regulating valve products. It uses a general fluid medium
Production process control system for quality and process conditions.

This product is composed of a new pneumatic multi-spring film actuator and a low flow resistance sleeve valve. The characteristics are as follows:
1, the use of balanced spool, unbalanced force is small, allowing large pressure difference, stable operation.
2, the valve seat guide surface is large, can improve the shock caused by eddy current and impact, and reduce damage.
3, compared with the ordinary single and double seat regulating valve noise reduction of about 10dB.
4, simple structure, convenient installation and disassembly maintenance.

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Product parameters

1. Main technical parameters of the regulating mechanism

Nominal diameter (mm)

25

40

50

65

80

100

150

200

Seat diameter (mm)

25

32

40

50

65

80

100

125

150

200

Rated flow coefficient (Kv)

Straight line

11

17.6

27.6

44

69

110

176

275

440

690

Equal percentage

10

16

25

40

63

100

1620

250

400

630

Nominal pressure (MPa)

0.6,1.6,4.0,6.4

Stroke length (mm)

16

25

40

60

Characteristic of flow

Straight line, equal percentage

Medium temperature (℃)

-20℃-200℃, -40-250℃ (normal temperature type), -40-425℃ (medium temperature type)

Size of flange

Cast iron flange size according to JB/T78, cast steel flange size according to JB/T79

Valve body material

PN
(MPa)

0.6,1.6

Ht200

4.0,6.4

ZG230-450、ZG1Cr18Ni9、ZG0Cr18Ni12Mo2

Valve core material

1Cr18Ni9、0Cr18Ni12Mo2

Upper valve cover type

Ordinary type (normal temperature type) Hot plate type (medium temperature type)

Adjustable ratio

50:1

Note: ANSI, JPI and JIS flange products can be provided to users, and the legal pitch shall be determined according to the needs of users.

2. Main parameters of the actuator​

Model number

ZHA（B）-22

ZHA（B）-23

ZHA（B）-34

ZHA（B）-45

Effective area

350

350

560

900

Stroke length (mm)

16

25

40

60

Spring range (KPa)

20-100 (standard); 40-200; 80-240; 20-60; 60 to 100



3. Tolerances are allowed

On/off switch
The way

Actuating machine
Number of configuration

Range of spring
(KPa)

Air source pressure
(KPa)

Need for
Accessories

Nominal diameter (mm)

25

40

50

65

80

100

150

200

Gas closure

ZHA-22

20-100
20-100
40-200

0.14
0.25
0.4

-
p
PorR

3.00
6.4
6.4

ZHA-23

20-100
20-100
40-200

0.14
0.25
0.4

-
p
PorR

2.25
6.4
6.4


1.95
6.4
6.4

ZHA-34

20-100
20-100
40-200

0.14
0.25
0.4

-
p
PorR

2.36
6.4
6.4

2.04
6.4
6.4

1.67
6.4
6.4

ZHA-45

20-100
20-100
40-200

0.14
0.25
0.4

-
p
PorR

1.41
6.4
6.4

1.41
6.4
6.4

Open of air

ZHB-22

20-100
40-200
80-240

0.14
0.25
0.4

-
p
PorR

1.5
4.5
6.4

ZHB-23

20-100
40-200
80-240

0.14
0.25
0.4

-
p
PorR

1.13
3.387
6.4

0.98
2.93
6.4

ZHB-34

20-100
40-200
80-240

0.14
0.25
0.4

-
p
PorR

.18
3.54
6.4

11.02
3.06
6.4

0.84
2.51
5.85

ZHB-45

20-100
40-200
80-240

0.14
0.25
0.4

-
p
P or R

0.71
2.12
4.94

0.57
1. 71
400



Note: 1, P - valve positioner; 2. The allowable pressure difference is the maximum value of △P under the condition of P2=0 when the valve is closed.
3, the maximum pressure difference is more than 1.0MPa, valve plug, sleeve surface surfacing carbide.

Accessories available

Locator, handwheel mechanism, air filter pressure, etc. ​