ZJCLV Valve Operating Instructions

April 9th 2022

Gate Valve Operating Manual

 

1. General

The serials Check valve is used in the pipe system to close or open the pipeline to keep system running normally.

ZJCLV Valve Operating Instructions

2. Guarantee

Guarantee period of valve is 12 months after using, but not exceed 18 months after delivery.Manufacturer will repair or provide spare parts free of charge on the occurrence of damage due to material,manufacturing other damager under correct operation condition during the guarantee period.

Stem Hard sealing
Suitable temperature(℃) -29℃~ +425℃
Working pressure(bar) 20-250
Nominal size (mm) 15~600
Main material WCB CF3 CF8 CF3M CF8M
Medium water oil gas

3. Usual Faults and Solutions

Fault Description Cause Solution
Leakage of sealing face Damnification of sealing face Replace seat of valve
Exist dirty between seat and ball Clean the inside body
Switch does not go to position Screw the handle and handwheel
Leakage of stuffing box Stuffing loose or stuffing wear Add stuffing
Stuffing gland is not tight Screw the nuts of gland
Leakage of middle flange Bolt of middle flange is loose Screw the nuts of middle flange
Gasket failure Replace the middle gasket
Leakage of two end flange The compressed force of pipe flange is not adequate Screw the bolts of flange
Gasket failure Replace gasket

3.User Notice:

3.1.Not be suitable for significant corrosion and wear fluid and cannot exceed the scope in the table 1.

3.2. Not be suitable for fire environment.

3.3.The product design did not consider conditions of earthquake, traffic wind load and snow load.

3.4.The manufacture shall not be responsible for any damage resulted in above operating conditions.

3.5.The set pressure of safety valve have been set and tested before delivery..

3.6.It shall be adjusted by authorized personnel in accordance with local regulation requirements of setting and testing. The manufacture will not be responsible for any damage or failure due to be setting by no authorized personnel.

 

Check Valve Operating Manual

 

1. General

The serials Check valve is used in the pipe system to close or open the pipeline to keep system running normally.

2.Product Descriptions

2.1These serials valve are hand-driven, through handwheel. The valve closes when turning the hand wheel clockwise, and the valve opens when turning counter clockwise, these serials valves also can be driven using automatic machinery control devices.

2.2These serials valve are designed and manufacture in according with BS1873 and valve design manual specification etc.

2.3The brief drawing, the suitable working pressure and temperature and material of the main parts are indicated in attached drawing and tables.

ZJCLV Valve Operating Instructions
Stem Hard sealing
Suitable temperature(℃) 29℃~ +425℃
Working pressure(bar) 20-250
Nominal size (mm) 15~600
Main material WCB CF3 CF8 CF3M CF8M WC6 WC9 F304 F316 F304L F316L F11 A105

3. Usual Faults and Solutions

Fault description Cause Solution
Leakage of sealing face damage of sealing face Replace seat of valve
Exists hard solid on sealing face Clean the sealing face
Leakage of stuffing box Stuffing loose or stuffing wear Add stuffing
Stuffing gland is not tight Screw the nuts of gland
Leakage of two end
flange
The connection force of pipe flange is not symmetrical Screw the bolts of flange
Gasket failure Replace gasket

 

Ball Valve Operating Manual

 

1. General

The serials ball valve is used in the pipe system to close or open the pipeline to keep system running normally.

ZJCLV Valve Operating Instructions
Stem Soft sealing
Suitable temperature(℃) -29℃~ +120℃
Working pressure(bar) 20~250
Nominal size (mm) 32-600
Main material WCB A105
Medium water oil gas

 

Fully Welded Trunnion Mounted Ball Valve Operating Manual

 

ZJCLV Valve Operating Instructions
Stem Soft sealing
Suitable temperature(℃) -29℃~ +150℃
Working pressure(bar) 10~25
Nominal size (mm) 15-1400
Main material 20#, ST37.8
Medium water oil gas

 

Butterfly Valve Operating Manual

 

1. Multi-layer metal-to-metal and cast iron soft sealed butterfly valve is completed with stan-dard flanges, others with special flanges of butterfly valve. (See Fig 1 )

2.If applicable for pressure test by the users, place the valve with.flanges at both ends or on t he test bed to carry on pressure test. (See Fig 2)

3. Although with strict inspection and test before delivery, there is still some movement for individual products by vibration during transportation, which need adjust again according to Diagram 3. If the disc is not tight, turn Screw 2 a little counter-clock wisely, turn the disc at sealed position, lock the nut at proper position. If the disc is closed at post position (or the disc is not available to open), it should turn Screw 2 a little clockwise, and open the disc at closed position, and then lock the nut properly.(See Fig 3)

4. It is one-way usage for butterfly valve, and please mark arrow on the body to show the direction of closed sealing. (See Fig 4)

5. It is good to install the valve in closed position, cover the port as welded ( See Fig 5), pre-vent from damage of the grainual and sediment for the sealing faces.

ZJCLV Valve Operating Instructions

ZJCLV Valve Operating Instructions

6.Potential Problems and Solution

Potential Problems Reason Solution
Sealng Leakage 1、Disc and seal ring with sediment
2、Disc and seal ring are not in correct line
3、Outlet flange bolting with uneven force or not locked tightly
4、Test pressure in accordance with iagram 2 required direction
1、Elimate the sediment, clean the internal cavity
2、Correct the adjust screws of worm gear or electric actuat or till the porper closed position
3、Check and install the flange and bolting tight pressure averagely
4、Perform the pressure according to the arrow direction
Leakage of both valve ends 1、Gasket failure of both sides
2、Pipe flange without tight pressure
3、Gasket failure of upper and lower seal rings
1、Change seal gasket
2、Pressurize the flange bolts (average force)
3、Dismantle the gland ring and change the failure
23 / 24 gasket
7, Packing delivery and other attention:

1). The products should be packed in accordance with standard specification for output products. Check operation instruction, inspection qualified certificate and other accessory before packing.

2). The qualification certificate should indicate manufacture, output time, inspector, stamp, etc.

3). Abide by the related regulations and avoid the damages during transportation.

4). Perform the products required by standard specification for acceptance.

5). Inform us after the user find the abnormal phenomenon, and if there is any dispute each other, recheck the products according to standard specification and solve it by final results.

ZJCLV Valve Operating Instruction

ZJCLV Valve Operating Instructions