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Product DescriptionCompany Info.<>
- Model:
- ZXP-16K
- Processing customization:
- Yes
- Material:
- Stainless steel
- Connection form:
- Flange
- Nominal diameter:
- DN15~350 mm
- Pressure environment:
- High pressure
- Operating temperature:
- High temperature
- Flow direction:
- One-way
- Driving mode:
- Pneumatic
- Parts and accessories:
- Locator
- Form:
- Plunger type
- Types:
- Two-way type
- Standard:
- National standard
- Sealing form:
- Hard sealed type
I. Product overview:
ZXP-16K straight stroke pneumatic diaphragm small flow single-seat control valveis compressed air as the power source, cylinder as the actuator, and with the help of electrical valve positioner, converter, solenoid valve, retaining valve and other accessories to drive the valve, to achieve switching or proportional adjustment, receive industrial automation control system control signals to complete the adjustment of pipeline media: flow, pressure, temperature and other process parameters. Pneumatic control valve is characterized by simple control, rapid response, and intrinsic safety, no need to take additional explosion-proof measures.
II. Uses and characteristics:
ZXP-16K straight stroke pneumatic diaphragm small flow single-seat control valveis a right-angle rotary structure, it is used with valve positioner, can achieve proportional adjustment; V valve core * suitable for various adjustment occasions, with rated flow coefficient, adjustable ratio, good sealing effect, sensitive adjustment performance, small size, vertical and horizontal installation. Suitable for controlling gas, steam, liquid and other media.
Pneumatic diaphragm control valve is a right-angle rotary structure, composed of V-type valve body, pneumatic actuator, positioner and other accessories; has an approximate equal percentage of the inherent flow characteristics; double bearing structure, starting torque is small, with excellent sensitivity and induction speed; super shear capacity.
III. Application of working conditions:
The regulating valve adopts top-oriented structure and is equipped with multi-spring actuator. Pneumatic diaphragm single-seat control valve has the advantages of compact structure, light weight, sensitive action, S streamlined fluid channel, small pressure drop loss, large valve capacity, accurate flow characteristics, convenient disassembly and so on. Pneumatic diaphragm single-seat control valve is widely used in precise control of gas, liquid, steam and other media, process parameters such as pressure, flow, temperature, liquid level to maintain a given value. It is especially suitable for working occasions where the pressure difference between the front and rear of the valve is small and the leakage is small.
Control valve This series of products are adjustable type, adjustable cut-off type, bellows seal type, jacket insulation type and other varieties. Product nominal pressure grades PN10, 16, 40, 64; valve body diameter range DN20~200. Applicable fluid temperature range from-200℃~560℃ in a variety of grades. Leakage standards are Class IV or VI. Flow characteristics are linear or equal percentages. A wide variety of specifications are available.
IV. Structural advantages:
Top-oriented single-seat regulating valve, compact structure, few parts, easy maintenance. Metal spool suitable for a variety of working occasions, up to IV leakage standards, ZXPQ soft seal structure spool up to VI leakage standards. The valve body is designed as a low flow resistance flow channel with equal cross section according to the principle of fluid mechanics, and the rated flow coefficient is increased by 30%. The adjustable range is large, and the inherent adjustable ratio is 50. The actuator adopts multi-spring structure, which reduces height by 30% and weight by 30%.
V. Pressure and explosion-proof structure of accessory positioner
1. Pressure-resistant packing formula:
(1) G1/2 interface at the electrical interface, one can be selected, and the unused interface is screwed down with blind plug.
(2) The actual connection thread of the pressure-resistant packing type should be greater than 5 pitches and locked with lock nuts.
(3) The wire is suitable for <$9 ~<$10 specifications and has suitable rubber seals.
(4) Rubber seals should use pressure sleeves to fully compress cables.
(5) Input signal +, -, do not make mistakes, wiring to be reliable, wiring screw M4, wiring cover inside and outside each has a grounding connector, you can choose one.
(6) After the input signal is connected, tighten the junction box and tighten the set screw M4.
(7) The positioner shell is equipped with terminal blocks, which should be reliably grounded during installation.
(8) The cable inlet of the positioner must be equipped with NEPSI approved AD105 DT-G1/2 cable inlet device.
2. Wiring:
(1) There are two G1/2 interfaces at the electrical interface, one can be selected, and the unused interface is screwed down with blind plug.
(2) Screw the sealing component into the interface with a threaded joint, and the actual connection thread should be greater than 5 pitches.
(3) When wiring, pay attention to avoid scratches on the wire skin and ensure that the wiring is correct.
(4) Input signal +, -pole do not make mistakes, wiring should be reliable, wiring screw M4, limit cover inside and outside each has a grounding connector, you can choose one.
(5) After the input signal is connected, tighten the junction box and tighten the firm screw M4.
3. Sealing barrier: Open the injection port of the sealing part and use asbestos sealing filler as a sealing barrier in the specified position. With the sealant injection port facing upward, screw the injection port firmly.
VI. Accessories Electrical valve positioner HEP-15 Fixed parameters:
HEP serieselectro-pneumaticvalve positioner is used with regulating valve, converting the output signal of regulating valve into the gas signal driving regulating valve, overcoming the friction force between packing box and valve stem, overcoming the unbalanced force of medium pressure difference on regulating valve core, improving the action speed of regulating valve, thus ensuring that regulating valve is correctly positioned according to the output signal of regulator.
Technical parameters:
Basic error:±1%(single action);±5%(double action)
Backlash:±1%(single action);±5%(double action)
Dead zone:±0.4%(single acting);±0.8%(double acting)
Rated stroke:0-(10-100)mm
0-(50-75-90)Angular stroke
Gas source pressure:0.14-0.55MPa
Input signal:4-20mA.DC;0-10mA.DC(separable)
Output pressure:0.02-0.5MPa
Air consumption: single action:450L/h(air supply0.14MPa)
Double action:360L/h(air supply0.55MPa)
Output characteristics: linear, equal percentage
Ambient temperature:-35~+60℃
-20~+60℃ (intrinsically safe)
Relative temperature: 10-90%
Input Yin: 4-20mA.DC300± 100(at 20℃)
0-10mA.DC1000± 300(at 20℃)
Air supply connector:M10 1. 5
Shell material: aluminum alloy
Appearance size: 203× 160× 105
Weight: 2.8kg
VII.Technical parameters:
VIII.Maintenance and adjustment methods:Nominal diameter DN(mm) 20 25 32 40 50 65 80 100 125 150 200 (10) (12) (15) (20) Rated flow coefficient KV straight line 1.8 2.8 4.4 6.9 11 17.6 27.5 44 69 110 176 275 440 690 equal percentage 1.6 2.5 4.0 6.3 10 16 25 40 63 100 160 250 400 630 Rated stroke L(mm) 16 25 40 60 Effective area of diaphragm Ae(cm2) 280 400 600 1000 Signal Range Pr(KPa) 20~100、40~200 Gas source pressure Ps(MPa) 0.14~0.4 inherent flow characteristic straight line, equal percentage inherent adjustable ratio 50 leakage allowed Hard seat: Class IV (10-4 valve rating) Soft seat: Class VI Nominal pressure PN(MPa) 1.0、1.6、4.0、6.4 Operating temperature t(℃) normal temperature type -20~200、-40~240、-60~250 heat dissipation type -40~450、-60~450 high temperature modification 450~560 low form -60~-100、-100~-200、-200~-250 The performance index of this product complies with GB/T4213-92 standard Pneumatic valve daily maintenance precautions:Hangzhou Lianggong Valve Co., Ltd.(Sino-German cooperation) is located in the beautiful Fuchun River, adjacent to Hangzhou. The company was founded in 1996, registered capital of 41.8 million yuan, is a collection of scientific research and development, production, sales and service in one of the large control valve manufacturing enterprises, with strong technical force, advanced manufacturing equipment, perfect product testing facilities, and through the ISO9 OO1:2000 quality system certification, People's Republic of China special equipment manufacturing license (pressure pipe) number: TS2710D66-2011, British MOODY pressure parts CE certification, EU 3.1 material certification, EU industrial process control valve CE certification, CNNC qualified supplier, Sinopec first-class network supplier
1, the valve should be stored in a dry and ventilated room, and both ends of the passage must be blocked.
2, long-term storage of the valve should be regularly checked, remove dirt, and in the processing surface coated with rust oil.
3, after installation, should be regularly inspected, the main inspection items: (1) sealing surface wear. (2)Wear of trapezoidal threads on stem and stem nut. (3)Whether the packing is outdated and invalid, if damaged, it should be replaced in time. (4)After valve repair and assembly, sealing performance test shall be conducted.
Debugging method:
Pneumatic valve positioner is one of the important pneumatic accessories of pneumatic control valve, which realizes the function of receiving control signal to accurately position valve stroke position.
2, pneumatic valve positioner function: pneumatic valve positioner and pneumatic actuator together constitute an automatic control unit and a variety of control valve connection after debugging installation, combined into a pneumatic control valve. Pneumatic valve positioners are used in a variety of industrial automation process control fields.
3, pneumatic control valve factory, the positioner and control valve have been calibrated, but the valve installed on the pipeline often need to be calibrated again, the conventional calibration method is: calibration 5 points, namely 4mA,8mA,12mA,16mA,20mA, in 12mA when the positioner feedback rod is in the horizontal position, other groups of signals when the valve position should be 0, 25%, 75%, 100% of the stroke, and the feedback rod rotation angle is less than plus or minus 45 degrees. The deviation between zero and full can be corrected by adjusting the corresponding screws separately. Under normal circumstances, if the valve stroke corresponds to the given signal one by one, it means that the calibration is completed.
4, the valve closed when a major problem is how to achieve the valve seat tightly closed full load. The usual method is to calibrate the valve so that the closing member (e.g., plug, diaphragm, plate, etc.) is properly positioned on the valve seat, rather than confirming that the closing member is fully seated on the valve seat. In order to maintain the design leakage and avoid corrosion of the sealing surface, the appropriate sealing load must be designed.
5, single-acting pneumatic actuators are usually used membrane design. In this design, springs are used to reduce seat loads and to withstand full closing pressures. A typical double-acting pneumatic actuator uses a piston design. With this design, unlike the diaphragm design, the supply pressure does not need to be limited, and in order to achieve higher closing pressures, full load supply pressure can be applied. For piston designs, the higher the pressure, the better the valve stability and control sensitivity.
IX. Introduction to manufacturing technology:
- Name（chinese）
- 杭州良盛电气有限公司
- Name（English）
- Hangzhou Liangsheng Electric Co., Ltd.
- China credit code
- 91330183MA2B17L5X7 Identity Verification
- Registered Capital
- 52,800,000 CNY
- Operating term
- 2018-03-14 ~ 2048-03-13
- Address
-
Fuyang City, Hangzhou, Zhejiang, China
- Nearby port
- Ningbo
Hangzhou Liangsheng Electric Co., Ltd.(formerly Hangzhou Lianggong Valve Co., Ltd.) was established in 1996. It is located on the bank of the Fuchun River with beautiful scenery, only 15 kilometers away from the "Paradise" Hangzhou and 20 kilometers away from the international airport. The transportation is very convenient. Our company is a professional manufacturer of automatic control valves. The company has strong technical force, excellent machining equipment, advanced production technology, and complete testing facilities and after-sales services. It has passed ISO9001: 2008 International Quality System Certification and People's Republic of China Special Equipment Manufacturing License-Pressure Pipeline-Control Valve Class A and is produced in accordance with the system, manufacturing license and EU CE certification. The product quality is reliable. The main products include: self-operated pressure regulating valves, nitrogen supply valves for nitrogen sealing devices, nitrogen relief valves, self-operated electrically controlled temperature regulating valves, self-operated steam pressure reducing and stabilizing valves, pneumatic membrane regulating valves, cylinder-type shut-off valves, pneumatic electric regulating ball valves, pneumatic membrane three-way dividing (closing) flow regulating valves, self-operated micro (differential) pressure regulating valves, GIQ-1.0W pneumatic high vacuum butterfly valves and many other series products. The company focuses on product development and research, constantly taps internal potential, and focuses on digesting and absorbing foreign advanced technology. Products are widely used in automatic control systems in petroleum, chemical industry, metallurgy, electric power, papermaking, light textile, food, refrigeration, pharmaceuticals, water supply and drainage and other industries. "Produce high-quality products, create high-quality management levels, and meet customer requirements", this is the commitment of Liangtai people. We are committed to advanced technology and high-quality products to help you reduce energy consumption and labor intensity; enhance safety performance; and provide a comfortable environment.- Name（chinese）
- 杭州良盛电气有限公司
- Name（English）
- Hangzhou Liangsheng Electric Co., Ltd.
- China credit code
- 91330183MA2B17L5X7 Identity Verification
- Registered Capital
- 52,800,000 CNY
- Operating term
- 2018-03-14 ~ 2048-03-13
- Address
-
Fuyang City, Hangzhou, Zhejiang, China
- Nearby port
- Ningbo
Hangzhou Liangsheng Electric Co., Ltd.(formerly Hangzhou Lianggong Valve Co., Ltd.) was established in 1996. It is located on the bank of the Fuchun River with beautiful scenery, only 15 kilometers away from the "Paradise" Hangzhou and 20 kilometers away from the international airport. The transportation is very convenient. Our company is a professional manufacturer of automatic control valves. The company has strong technical force, excellent machining equipment, advanced production technology, and complete testing facilities and after-sales services. It has passed ISO9001: 2008 International Quality System Certification and People's Republic of China Special Equipment Manufacturing License-Pressure Pipeline-Control Valve Class A and is produced in accordance with the system, manufacturing license and EU CE certification. The product quality is reliable. The main products include: self-operated pressure regulating valves, nitrogen supply valves for nitrogen sealing devices, nitrogen relief valves, self-operated electrically controlled temperature regulating valves, self-operated steam pressure reducing and stabilizing valves, pneumatic membrane regulating valves, cylinder-type shut-off valves, pneumatic electric regulating ball valves, pneumatic membrane three-way dividing (closing) flow regulating valves, self-operated micro (differential) pressure regulating valves, GIQ-1.0W pneumatic high vacuum butterfly valves and many other series products. The company focuses on product development and research, constantly taps internal potential, and focuses on digesting and absorbing foreign advanced technology. Products are widely used in automatic control systems in petroleum, chemical industry, metallurgy, electric power, papermaking, light textile, food, refrigeration, pharmaceuticals, water supply and drainage and other industries. "Produce high-quality products, create high-quality management levels, and meet customer requirements", this is the commitment of Liangtai people. We are committed to advanced technology and high-quality products to help you reduce energy consumption and labor intensity; enhance safety performance; and provide a comfortable environment. -
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