Wafer type Double Disc/Piston lift Check Valve-Installation, Operation and Maintenance Manual

Valve type
Wafer type check valve: double disc check valve, piston lift check valve

Usage and Feature
1. Usages
Series check valves are used in oilfield, chemical-industrial, power-station for checking the flow-backward of the material in the pipe.
2. Features

Type

Nominal

pressure

Strength testing  pressure

High-pressure

Sealing testing

Pressure

Low-pressure

Sealing testing

Pressure

Temperature

Range

Applicable medium

H2a3AR

1.6MPa

2.4Mpa

1.76MPa

Non

CC10

≤425°C

Water, oil

H3a3AR

2.5MPa

3.75MPa

2.75MPa

CA23

≤540°C

steam

H4a3AR

4.0MPa

6.0MPa

4.4MPa

H5a3AR

6.4MPa

9.6MPa

7.04MPa

CS34

≤316°C

150Lb

3.03 MPa

2.2MPa

300Lb

7.78MPa

5.78Mpa

≤425°C

Working theory and configuration direction
1. Series check valve are designed and made under standard API594 and JB/T7746, tested under standard API598,JB/T9092.
2. The disc opens under the pressure of the liquid, the liquid flow from the inlet to the outlet. Continue reading “Wafer type Double Disc/Piston lift Check Valve-Installation, Operation and Maintenance Manual”

Globe Valve Installation,Operation and Maintenance Manual

Globe Valve Installation, Operation and Maintenance Manual

Valve type
Hand operated rising stem straight style globe valve

Usage and feature
Usage
Series flanged ends cast steel are used in oilfield, chemical-industrial, power-station for cutting and connecting the pipe.

Features

Nominal

pressure

Strength testing  pressure

High-pressure

Sealing testing

Pressure

Low-pressure

Sealing testing

Pressure

Temperature

Range

Applicable medium

1.6Mpa

2.4Mpa

1.76Mpa

Water, oil

150Lb

3.0Mpa

2.2Mpa

0.6Mpa

≤425°C

gas

300Lb

7.5Mpa

5.5Mpa

600Lb

15 Mpa

11 Mpa

Working theory and configuration direction
1. Series globe valve are designed and made under standard ASME16.34,JB/T7746, tested under standard API598,JB/T9092.
2. Hand wheel moving clockwise will close the disc and cut the pipe. As anti-clock will open the disc. Continue reading “Globe Valve Installation,Operation and Maintenance Manual”

Ball Valves Installation, Operation And Maintenance Manual

Classification

The ball valves is divided into floating ball valve and trunnion ball valve according to the ball support in the bottom trunnion or seat.

The ball valves is divided into metal seal ball valve and soft seal ball valve according to the surface of sealing material.
The ball valves is divided into top entry, side entry and full welded body type according to the body structure.
The ball valves is divided into 1 pc, 2pcs, 3pcs body in side entry ball valve

Usage and feature
Usage
Series floating ball valve and trunnion type ball valve are used in oilfield, chemical-industrial, power-station for cutting and connecting the pipe.

Nominal

pressure

Strength testing  pressure

High-pressure

Sealing testing

Pressure

Low-pressure

Sealing testing

Pressure

Temperature

Range

Applicable medium

150Lb

3.0Mpa

2.2MPa

0.6MPa

≤180°C

Water ,oil, Gas

300Lb

7.5Mpa

5.5Mpa

600Lb

15.0Mpa

11.0Mpa

900Lb

22Mpa

17.6Mpa

1500Lb

37.5Mpa

27.5 Mpa

Working theory and configuration direction
1. Series gate valve are designed and made under standard API 6D tested under standard API598.
2. Handle moving clockwise by 90 will close the pore of ball is vertical of the pipe and cut it. As anti-clock will connect the pipe. Continue reading “Ball Valves Installation, Operation And Maintenance Manual”