Plunger discharge valve

Plunger discharge valve
  • sell：021-32051999
  • sell：021-32050777
  • fax：021-66099555

Details

  • Product Introduction
  • Service Promise
  • Ordering Process

Plunger type discharge valve is used for feeding reactor, various containers and pipelines and no dead zone shutdown operation. For systems requiring full displacement of valves, piston valves are more suitable than discharge valves. Because the movement of the plunger in the valve chamber is also a process of cleaning the valve chamber, the plunger valve can be used in slurry process media. The design is diversified and can be connected to the outlet of various containers. Pipeline sampling and discharging. Low temperature applications are equipped with polyvinylidene fluoride and graphite radial seals. Metal seals are applied in high temperature applications. Various operating modes are available, such as manual, pneumatic (spring reset, double acting, with and without handwheels), electric, hydraulic, etc. As long as the plunger can provide full displacement state work. This standard specifies the type, technical requirements and marking of the manual plunger type stainless steel discharge valve. This standard is applicable to all chemical reactors and petrochemical equipment with all kinds of discharging and sampling of agitators.


Equipment performance


(1) corrosion resistance


1. PTFE has good adhesion to metals, and is generally resistant to dilute acid and concentrated acid.


2. Easy to use medium particles, oils, pulp, carbon dioxide (stainless steel material, the minimum use temperature is - 100, the maximum use temperature is 232)


3. It is forbidden to use ionic liquids containing fluorine (such as HF etc.) nor to use strong alkali or phosphoric acid (temperature > 150 C > 30%).


(two) the general working temperature of stainless steel (medium temperature) is -5~225 C.


(three) the nominal pressure is 0.6Mpa


(four), HG5-89 plunger discharge valve diameter range: 25~250mm


Matters needing attention in maintenance and installation


1. The valves should be stored in a ventilated and dry warehouse as a whole. No stacking or open storage is allowed. The valves should be blocked at both ends of the diameter.


2. Carefully check the valve before installation and remove the damage caused by the internal transportation and storage of the valve.


3, before installation, attention should be paid to whether the screws of each part are balanced, and whether the movements are flexible.


4, valves should be installed in areas where there is no severe vibration and impact, and the site where the valve is not damaged.


5. When the discharge is blocked, you can use metal rods or hard tools to dredge, pay attention to the use of metal rods or hard tools do not damage the disc and seal ring contact surface.


6, try to avoid alternate use of acid-base medium (except neutralizing reaction medium), so as not to shorten the life span.


7. According to the medium performance and service life, the top of the valve body should be checked regularly for the Teflon sealing ring and the Teflon sheet at the orifice plate. If damage is found, it should be replaced in time.


8. If the valve face is found to be damaged, it should be stopped immediately. It can be repaired with special materials or commissioned by the relevant production unit.


Possible failures, causes and elimination methods

可能發(fā)生的故障
發(fā)生故障的原因
清理方法
1.法蘭連接部分泄漏
1．法蘭連接螺栓沒有擰緊或松緊不均勻。
1.將螺栓送開重新均勻擰緊。
2.墊片失效。
2.更換墊片。
3.法蘭密封面間有污物。
3.卸下清洗法蘭。
2.填料函泄漏
1.填料松動(dòng)或填料壓蓋壓偏。
1應(yīng)將填料壓蓋均勻地壓緊。
2.填料失效
2.更換新填料。
3.密封面泄漏
1.密封面間附有污物。
1.清洗密封面。
2.密封面有損傷。
2.重新修磨。
4.閥桿轉(zhuǎn)動(dòng)不靈活
1.閥芯蓋接角太緊或軸承磨損。
1.調(diào)整填料松緊度或更換軸度。
2.閥桿與閥桿螺母間有雜物可阻，螺紋部分損壞。
2.拆開清洗或修理螺紋損壞部分。
3.電動(dòng)裝置出現(xiàn)故障。
3.按說明書檢查并修理。


Material of main parts


1. Valve body


2, bracket: ZG1Cr18Ni9Ti, CF8 (304), CF3 (304L), ZG1Cr18Ni12Mo2Ti, CF8M (316), WCB


3. Valve stem


4. Piston barrel


5. Cylinder liner: 1Cr18Ni9Ti, 00Cr19Ni11 (304L), 1Cr18Ni12Mo2Ti, 2Cr13, Cr17Ni14Mo2 (316L), 00Cr17Ni17Mo2 (316L)


6. Filler: Graphite


7. Spool cover: copper.


8. Packing Cover: WCB, 1, Cr18Ni9Ti, 0Cr18Ni9 (304), 00Cr19Ni11 (304L), 1Cr18Ni12Mo2Ti, 2Cr13, 0Cr17Ni12Mo2 (316L)


9. Handwheel: malleable iron, ductile iron or steel.




Main dimensions (flange size GB9113.3PN1.6Mpa)


口徑
DN
H
D0
D
D1
D2
D3
b
f
d
連接螺栓
規(guī)格數(shù)量
公稱壓力PN Mpa(1.6)
25
286
160
115
85
65
25
16
3
14
M12×4
32
300
160
140
100
76
32
18
3
18
M16×4
40
355
180
150
110
84
40
18
3
18
M16×4
50
374
180
165
125
100
50
18
3
18
M16×4
65
465
220
185
145
118
65
20
3
18
M16×4
82
480
250
200
160
132
76
20
3
18
M16×4
100
620
280
220
180
156
95
22
3
18
M16×4
125
640
300
250
210
184
125
22
3
18
M16×4
150
782
320
285
240
211
150
24
3
22
M20×8
200
960
360
340
295
266
200
24
3
22
M20×12
250
1027
500
405
355
319
250
26
3
26
M24×12


The best quality, first-class service Qigao creates more value for you!

"Qigao Valve" expects to continuously improve service quality and strive for excellence. "Sincere service" is the eternal theme of "Qigao". "Qigao" strictly followsIS09001-2000 Quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. Strengthen communication with users and provide quality products to our customers with perfection and perfect service. Hereby our factory makes the following commitments:

Product Standards：

Products in strict accordance with ChinaGB、HG Standard and USAPISuch as standard design, manufacturing, acceptance. The hardness of the sealing surface meets the requirements of the state and the width exceeds the national standard.

pre-sale service：

Product introduction, technical exchange, non-standard product design, troubleshooting。

Sale service：

A trustworthy contract guarantees timely delivery and keeps in touch with customers. For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

After sales service：

1、"Qigao" brand product quality period is from the factory12In the month, the implementation of the "three guarantees" service (return, replacement, warranty).

2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions, so as to further improve product quality.

3、Respond quickly to the quality of user complaints, after-sales service personnel rushed to the scene in 24-36 hours (48 hours outside the province).

4、For after-sales service, users are required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of Qigao.

1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.：

a、Structure length；

b、Connection Type；

c、Nominal diameter, full diameter, reduced diameter, pipe size;

d、Operating medium and temperature, pressure range；

e、Tests, inspection standards and other requirements

2、The factory can configure various types of driving devices according to customer's specific requirements.。

3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.

4、For futures and order customers, please call us in advance to tell the required valve model, specification, quantity, delivery time and location, and timely transfer to the factory account according to the total 30% deposit or full payment. The rest of the payment is pending. Import before shipment to arrange delivery in time.

 

Order Process：

1、Customer purchase list fax to021-33872143，Or call us 021-33872141

2、Receive customer purchase list, provide valve model selection and quotation (price list)。

3、Specific agreement: delivery date, special requirements, etc.。

download Google：

1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.：

a、Structure length；

b、Connection Type；

c、Nominal diameter, full diameter, reduced diameter, pipe size；

d、Operating medium and temperature, pressure range；

e、Tests, inspection standards and other requirements

2、The factory can configure various types of driving devices according to customer's specific requirements.。

3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.

4、For futures and order customers, please call us first to tell the required valve model, specifications, quantity, delivery time and location, and press the total30%The deposit or full payment will be remitted to our factory account in time.， The rest of the payment will be remitted before shipment to arrange delivery in time.。

Sale service：

Trustworthy contract, guarantee timely delivery, keep in touch with customers at any time。

For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

After sales service：

1、"Qigao" product quality period is from the factory12Month, practice“Three packs”Service (return, replacement, warranty)。

2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions.，
In order to further improve product quality。

3、Respond quickly to the quality of user complaints, after-sales service personnel24-36Hours (outside the province48Hour) rushed to the scene。

4、For after-sales service, the user is required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of “Qigao”.。

statement

  1. All text, data and pictures in this article are for reference only.Plunger discharge valvePlease contact us at 4000-700-665 for details of performance, size and price.
  2. If there is no explanation, this article is original, reprint, please indicate the address of this article, thank you for your cooperation!