DN250 PN16 WCB Steam Flow Control Regulating Valve

ZDLM ELECTRIC SLEEVE CONTROL VALVE

 

OVERVIEW

ZDLM series electric sleeve control valve receives DC signal from the regulating instrument, changes the flow of the regulated medium, and keeps the controlled process parameters at a given value. It is widely used in production automation control in industrial sectors such as power, metallurgy, chemical industry, petroleum, textile, pharmaceutical, and papermaking.

The nominal diameter of this series of products ranges from 20 to 200mm, the nominal pressure is 1.0, 1.6, 4.0, and 6.4MPa, the operating temperature range is from -40C to 450C, and the receiving signal is 0~10mA.DC or 4~20mA.DC. Among them, the electric single-seat control valve is suitable for occasions with small pressure difference, large medium viscosity or slight particle impurities. The electric sleeve control valve is suitable for occasions with large pressure difference. According to the material of the valve trim sealing part, there are two types of metal-metal and non-metal-metal seals. The latter can reach the VI level (zero leakage) standard when the valve is closed. According to the different packings, it can be divided into general packing seals and bellows seals. The former is used in general occasions, while the latter is used in important occasions where leakage is not allowed. The flow characteristics are linear or equal percentage. Equipped with different actuators, it can be divided into two types: ordinary type and electronic type. A variety of varieties and sizes are available.

 

FEATURES

1. The valve body is designed according to the principle of fluid mechanics with a low-resistance flow channel with equal cross-section, and the rated flow coefficient is increased by 30%.

2. The adjustable range is large, the inherent adjustable ratio is 50, and the flow characteristics are linear and equal percentage.

3. The valve plug of the electric sleeve control valve is equipped with upper and lower pressure equalization holes, the unbalanced force is small, the valve stability is good, the sleeve is highly interchangeable, and the pressure difference is large.

4. The regulating cut-off type adopts a soft sealing structure valve core, which reaches the V-level leakage standard (zero leakage)

5. The servo amplifier adopts deep dynamic negative feedback to improve the automatic adjustment accuracy

6. The electric operator has various forms and can be applied to 4~20mA. DC or 0~10mA.DC.

7. The electronic electric control valve can directly control the valve opening by the current signal without the need for a servo amplifier.

8. The bellows-sealed control valve forms a complete seal on the moving valve stem to prevent fluid leakage.

 

PARTS MATERIAL

Body, bonnet	HT200,ZG230-450,ZG1Cr18Ni9Ti
Core	ZG1Cr18Ni9Ti, Stellite alloy surfacing welding reinforced PTFE
Packing	PTFE, flexible graphite
Push rod, bushing	2Cr13
Gasket	Rubber asbestos sheet, 10, 1Crl8Ni9Tiasbestos spiral wound gasket
Bellows	1Cr18Ni9Ti

 

 

TECHNICAL PARAMETERS

DN mm	20	25	32	40	50	65	80	100	125	150	200
Electric actuator	FRY-10		FRY-11			FRY-12			FRY-13
Thrust N	2500N		4000N			6400N			1000ON
Stroke time S
Consumption power N	6		15			25			40
Max.stroke mm	30		30			60			60

 

 

DN mm		20				25	32	40	50	65	80	100	125	150	200
		10	12	15	20
Rated flow coefficient	Linear type	1.8	2.8	4.4	6.9	11	18	28	44	69	110	176	275	440	690
	Equal percentage	1.6	2.5	4	6.3	10	16	25	40	63	100	160	250	400	630
Rated stroke mm		16					25			40			60
PN MPa		1.01.64.06.4
Inherent flow characteristics		Linear type,equal percentage
Inherent adjustable ratio		50
Allowable leakage	Single seat	Metal seal:IV level Soft seal:VI level
	Sleeve	Metal seal:IIlevel Soft seal:VI level
Operating temperature(℃)		-20~200-40~250-40~450-60~450
Signal range(MA.DC)		0~104~20
Action mode		Electric closing type Electric opening type
Ambient temperature(℃)		Electric control valve:-20~70℃ Servo amplifier:0-50℃
Ambient humidity		Electric control valve:≤95%Servo amplifier:≤85%
Power supply voltage		220V 50Hz 380V 50Hz 24AZ/DZ

 

ALLOWABLE PRESSURE DIFFERENCE

 

DN mm Thrust N	20	25	32	40	50	65	80	100	125	150	200
400	1.94	1.62	1.31	1.08	0.88
2000	6.4	6.4
4000	6.4	6.4	6.4	6.4	6.4
6000						6.4	6.4	6.4
6400						6.4	6.4	6.4	6.4	6.4	6.4
8000									6.4	6.4	6.4
16000									6.4	6.4	6.4

 

 

FAULTS AND SOLUTIONS

No action, power light off	Connect the power supply
The motor does not start, the power light is on, and the input signal light is on.	Check the voltage to make sure it is normal. Set the input signal selection switch to the correct position, lower the ambient temperature, reduce the frequency and sensitivity of use, or replace the capacitor, replace the wire, or connect the wire and the corresponding plug.
Motor oscillation, heat	Check the input signal to eliminate interference, adjust the sensitivity, use the potentiometer to reduce the sensitivity, and check to make it normal.
The valve position feedback signal is too large or too small	Check the potentiometer installation and adjust the zero position and travel potentiometer

 

 

PRODUCTS ADVANTAGES

 

 

VALVE INTERNAL COMPONENT MATERIALS

Main methods of hardening treatment

Commonly used valve internal component materials are SUS304, SUS316, SUS316L, SUS410, SUS420, etc., and are processed accordingly according to different fluid conditions. For controlling cavitation fluids, fluids containing solid particles, and high-temperature and high-pressure situations, they must be hardened. treatment to extend the service life of the valve.

 

Heat treatment

a.304/316 solid solution treatment

This series of materials is austenitic stainless steel and is mainly used in working conditions where the medium is corrosive or in low-temperature situations. When the medium is highly corrosive, solution treatment must be carried out. The purpose of solution treatment is to improve the hardness and corrosion resistance of the material.

Temperature range -196~530°C

 

b.410/420 quenching and tempering treatment (quenching + tempering)

The material of this series is martensitic stainless steel, which is an excellent cavitation-resistant material. It must be quenched and tempered when used in high-temperature and high-pressure difference situations. The purpose of quenching and tempering treatment is to greatly improve the hardness of the material and extend its service life under harsh working conditions.

Temperature range -45~425°C

 

c.17-4PH precipitation hardening treatment

Different types and quantities of strengthening elements are added to the chemical composition of stainless steel, and different types and quantities of carbides, nitrides, carbides and intermetallic compounds are precipitated through the precipitation hardening process, which not only improves the strength of the steel but maintains sufficient toughness. A type of high-strength stainless steel, referred to as precipitation hardening.

Temperature range -45~425°C

 

Surface hardening treatment

Surface heat treatment is divided into two categories: surface quenching and surface chemical heat treatment.

a. Flame heating surface quenching, contact electric heating surface quenching, induction heating surface quenching, etc.

b. Carburizing, nitriding, carbonitriding, chromium boronizing, copper infiltrating, etc.

 

Surfacing treatment

Stellite cladding (main components Co, Cr, W) is a commonly used hardening treatment method with excellent corrosion resistance. There are two methods of Stellite surfacing: full surfacing and partial surfacing. There is no standard regulation for the specific surfacing method. It usually depends on the different pressures and temperatures of the fluid and whether the fluid contains particles.

 

 

DIMENSIONS

FRY-Y-30

 

FRY-Y-60

 

FRY-Y-100

 

 

PACKAGING PROTECTION MEASURES

Packaging structure and materials

The packaging should be designed to be both strong and lightweight to withstand various pressures and impacts during transportation. The materials used should have good weather resistance, chemical resistance and wear resistance to adapt to different transportation environments.

 

Sealing and leak-proof

The packaging adopts reliable sealing technology, such as heat sealing, glue sealing or the use of sealing rings, to ensure the air tightness and liquid tightness of the packaging.

 

Easy to handle and identify

The size and weight of the packaging conform to ergonomic principles, ensuring safe and convenient handling for handlers. At the same time, the packaging clearly indicates the cargo information, such as name, weight, and destination, for quick identification and classification.

 

Special cargo identification

For special goods, such as flammable, explosive, toxic, corrosive or radioactive substances, the corresponding dangerous goods label must be affixed to the packaging.

 

Dangerous goods packaging specifications

For special goods, such as flammable, explosive, toxic, corrosive or radioactive substances, the corresponding dangerous goods label must be affixed to the packaging.

 

 

Certification

 

COMPANY OVERVIEW

Our company is located in Zhongbei Industrial Park, Xiqing District, Tianjin. It is a professional company integrating mechatronics, including design and development, production and assembly, sales and service of electric actuators and valve products.

The production base covers an area of ​​2,000 square meters

 

ENTERPRISE QUALITY INSPECTION QC PROCESS

01. Internal Testing

Check the sight glass and pointer for alignment.

Check the wiring for proper alignment.

Check the open and close limit cams for full engagement.

Check the pointer for full engagement.

Check the pointer position for alignment with the electric actuator.

Check the internal screws for tightness.

 

02. Appearance Inspection

Check for paint peeling/stains

Manual wrench

Waterproof connector

Manual dust plug

 

03. Product Type

Is the voltage consistent with the product foam box marking?

Is the control type consistent with the product foam box marking?

 

04.Marking

Use laser marking machine to mark product number

 

INSPECTION ITEMS FOR COMPLETE VALVE SETS

01. According to the information on the production order, check whether the following contents are consistent with the production order

Valve quantity

Valve diameter

Valve material

Valve connection method

Valve pressure

Actuator voltage

Actuator control type

Is the actuator explosion-proof?

 

02. Check the fastening screws

Check whether the screws between the valve and the electric actuator are tightened or not.

 

STANDARDIZED SAFETY PRODUCTION PROCESS IN THE WORKSHOP

Arrange

Remove and organize unwanted items, free up space, utilize space flexibly, prevent misuse and misplacement, and shape the overall workplace.

 

Organize

Locate and mark the items you need, organize them, make the workplace clear at a glance, create a tidy work environment, and shorten the time it takes to find items.

 

Cleaning

Maintain a clean, tidy, pleasant working environment, stable quality, and reduce industrial accumulation.

 

Tidy

Maintain previous 3S results, clean, maintain 3S results, and leave a good impression on customers.

 

Quality

Develop good habits and qualities of abiding by regulations, cultivate good habits of employees who abide by the rules, and create a team spirit.

 

THE STATUS AND ROLE OF 5S

1. Improve corporate image

2. Improve productivity and work efficiency

3. Improve production turnover

4. Reduce failures and ensure quality

5. Strengthen safety and reduce potential safety hazards

 

FAQ

How about your price?

Although high quality but the price is vary favorable.

 

What's your MOQ?

One piece.

 

What is the delivery time?

It is about 2-4 weeks after we receive the payment.

 

Do you have products in stock?

Yes, some stock can be shipped out within 3 days.

 

Do you test all your goods before delivery?

Yes, all products are fully inspected before delivery.

 

What is the warranty?

Our warranty is one year. After you receive the goods, if you find defect products, just take pics or videos to send us. We will re-make it for re-fund them to customers once we confirm it is our responsibilities.

 

 

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