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Plunger discharge valve


Plunger discharge valve
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Sales: 021-31007323
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  Product name : Plunger discharge valve Product model : HGU45H  
   Driving method : Manual Connection form : Flange
   Structure form : Plunger    Sealing material : stainless steel
   Pressure range : 0.6MPa    Nominal diameter : DN25-DN250
   Common materials : Carbon steel, stainless steel    Technical consultation : 021-31007323

是国内著名〖 柱塞式放料阀 〗制造商,也是国内大型【 放料阀 】生产商之一,公司自成立以来始终围绕客户的需求并持续创新,为广大的代理商和企业客户提供〖柱塞式放料阀 〗解决方案,质量可靠,价格实惠,故畅销全国各地,欢迎新老客户来电,来函,我们将为您提供最优质的服务。 Hushan Valve Manufacturing (Shanghai) Co., Ltd. is a well-known domestic [ plunger discharge valve ] manufacturer and one of the large domestic [ discharge valve ] manufacturers. The majority of agents and corporate customers provide the "Plunger Discharge Valve" solution, which is reliable in quality and affordable, so it sells all over the country. Welcome new and old customers to call us or write us a letter.

I. Overview of plunger discharge valve

用于对反应器,各种容器以及管线实放放料和无死区关断操作。 The plunger discharge valve is used for the actual discharge and non-dead-zone shutdown of the reactor, various containers and pipelines. 电动柱塞阀 比之放料阀更适用。 For systems requiring full-displacement valves, electric plunger valves are more suitable than discharge valves. Because the process of moving the plunger in the valve cavity is also the process of cleaning the valve cavity, the plunger valve can be applied to the slurry process medium. Diversified design, can be docked with various container outlets. Pipeline sampling and discharge. Low temperature applications are equipped with radial seals made of polyvinyl fluoride and graphite, and high temperature applications are metal sealed. Various operating modes are available, such as manual, pneumatic (spring return, double acting, with and without handwheel), electric, hydraulic, etc. As long as the plunger completely leaves the flow channel, the plunger valve can provide full displacement operation. 手动放料阀 的类型,技术要求及标记。 This standard specifies the types, technical requirements and markings of manual plunger-type manual discharge valves . This standard applies to the discharge and sampling of reactors with agitators in chemical and petrochemical installations.

Performance of main equipment of plunger discharge valve

I. Corrosion resistance
1. PTFE has excellent adhesion to metal, average tensile resistance, resistance to enoic acid, agricultural acid, etc.
2. Use medium such as granules, oil, pulp, carbon dioxide gas (The minimum temperature for stainless steel is -100 C, and the maximum temperature is 232 C.)
3. It is strictly forbidden to use fluorine-containing ionic liquids (such as HF, etc.) and strong alkali and phosphoric acid (temperature> 150 ℃, concentration> 30 浓度)
Second, half the working temperature (medium temperature) of stainless steel is -5 to 225 C
Third, the nominal pressure is 0.6MPa
Range of diameter: 25 ~ 250mm

3. Precautions for maintenance and installation of plunger discharge valve

1. The valve should be neatly stored in a ventilated and dry warehouse. It is strictly forbidden to stack or store in the open air. Keep the piston surface free of dirt, sand, etc., but pay attention to the piston surface not to collide with metal objects or strike with metal. Both ends of the valve diameter must be blocked with blind plates.
2. The valve must be inspected carefully before installation, and the damage caused by the valve during transportation and storage must be removed.
3. During installation, pay attention to whether the screws of each part are balanced and whether the lifting (moving) is flexible. Check whether the packing and the piston are well sealed. Do not disassemble or install them without permission, under the guidance of a technician.
4. The valve should be installed in a place without severe vibration and impact, and in a place where the valve is not damaged.
5. After the valve is installed, check whether all screws are tightened.
6. When the discharge is blocked, you can use metal rods or rigid tools to clear them. Do not use metal rods or rigid tools.
7. Try to avoid alternate use of acid-base media (except for neutralizing reaction media), so as not to shorten the life.
8. According to the performance of the medium and the period of use, the piston surface and packing wear should be checked frequently to prevent leakage. If it is found to be damaged, it should be replaced and used in time. Lubricate the piston face and the oil cup.
9. If the valve surface is found to be damaged, it should be stopped immediately. The affected area can be repaired with special materials or commissioned by the relevant production unit for production.
Possible failures, causes and solutions

Material of main parts of plunger discharge valve

1.Valve body
2. Bracket: ZG1Cr18N9Ti, CF8 (304), CF3 (304L), ZG1Cr18Ni2Mo2Ti, CF8 (316L), WC8
3.Valve stem
4.Piston barrel
5. Cylinder liner: 1Cr18Ni9Ti, 00Cr19Ni11 (00Cr19Ni11 (304L), 1Cr18Ni2Mo2Ti 2Cr13, Cr17Ni14M02 (316L), 00Cr17Ni14M02 (316L)
6. Filler: graphite
7. Spool cap: copper
8. Packing gland: WCB, 1Cr18Ni9Ti, 0Cr18Ni90Cr18Ni9 (304), 00Cr19Ni11 (304L), 1Cr18Ni12MoTi 2Cr132Cr13, 0Cr17Ni12Mo02 (316L)
9. Handwheel: malleable cast iron, ductile iron or steel
Main dimensions (flange size according to GB9113.3PN1.6MPa)

caliber  
DN (mm)

H

DO

D

D1

D2

D3

b

f

d

Connecting bolt  
Specification Quantity

PN MPa(1.6) Nominal pressure PN MPa (1.6)

25

286 286

160

115

85

65

25

16

3

14

M12 4

32

300 ~ 300

160

1401

100

76

32

18

3

18

M16 4

40

355 355

180

150

110

84

40

18

3

18

M16 4

50

374 374

180

165

125

100

50

18

3

18

M16 4

65

465 465

220

185

145

118

65

20

3

18

M16 4

80

480 480

250

200

160

132

76

20

3

18

M16 4

100

620 ~ 620

280

220

180

156

95

twenty two

3

18

M16 4

125

640 ~ 640

300

250

210

184

125

twenty two

3

18

M16 4

150

782 ~ 782

320

285

240

211

150

twenty four

3

twenty two

M20 8

200

960 ~ 960

360

340

295

266

200

twenty four

3

twenty two

M20 12

250

1027 1027

500

405

355

319

250

26

3

26

M24 12

 

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