Pipeline ball valve maintenance and management techniques
1. Maintenance and management of the construction period
During the construction period of the ball scientific management and maintenance is very important in the construction of the equipment management in place, maintain science, not only can ensure safety, and can greatly reduce the construction and operational management of costs. Major should note the following aspects: ① to the correct method of handling the valve, the valve to avoid mechanical damage. When the valve lifting, lifting belt can not be tied to the stem or actuators lifting, otherwise it will cause the stem bending diameter valve seal failure and gearbox destruction; Continue reading “Maintenance and Troubleshooting for natural gas pipeline ball valves”
Quality Cheap Industrial Valves Supplier in China Wenzhou
As quality valve supplier in china, Songgong able to offer cheap steel industrial valves base on Quality and Reliable.
Steel industrial valves include: ANSI forged steel gate valve/globe/check valve, size smaller than2 ” have huge stock and standard production. API602 ASME B16.34 BS5352 are the applied standard which require reduce port.
API6D API600 Gate/ globe/check valve, stock /semi-finished products are available.
API609 EN558 butterfly valve steel material for industrial application.
Continue reading “Quality Cheap Industrial Valves Supplier in China Wenzhou”
Supply Scope :Valves for Project: Yibal Khuff Cogeneration Power Plant
Supply Scope :Valves for Project: Yibal Khuff Cogeneration Power Plant
Continue reading “Supply Scope :Valves for Project: Yibal Khuff Cogeneration Power Plant”
Petroleum Development Oman LLC – Contract Number C311606 EPC Contract for Yibal Khuff Cogeneration Power Plant C6-01 – PROJECT INFORMATION & REQUIREMENTS
Petroleum Development Oman LLC
Contract Number C311606
EPC Contract for Yibal Khuff Cogeneration Power Plant
C6-01 – PROJECT INFORMATION & REQUIREMENTS
Table of Contents
3.0 Environmental and Meteorological Data. 3
3.4 Soil Thermal Resistivity, Seismic and Solar Radiation. 4
5.0 Air Conditioned Rooms (Redundant Systems) 5
7.1 AC System Voltages, Frequency and Neutral Earthing. 5
11.0 Surface Protection and Coating Systems. 7
13.0 Instrument Air Parameters. 8
14.0 Fuel Gas Specification. 8
1.0 Site Conditions
The Yibal Khuff Cogeneration Power Station will be located in Yibal field area, approximately 50 km south west of the Fahud field and 350 km south west of Muscat, in the PDO concession area.
Forged steel Valve are ready for Deliver in time by Stock and Semi-finished Plan/arrangement
Nowadays there is an trend require for quicker and quicker deliver with small and customized order in Valve industry, especially for small sized forged steel valve. Due to limit valve kinds and low unit value compare with large size valves, stock is workable and semi-finished products able for most normal material like A105, 20steel, F304, F316. LF2 and F11, F22, Monel, Duplex steel, Hastelloy alloy are possible when required. Connection: double flanged, socket weld, Threaded, butt weld valves and main four stock type valves.
Semi-finished products makes us to complete most 90% order winthin 2 weeks and shipment in 3 weeks. Like API602 A105 gate valves 800lb Socket weld connection, Stock or part semi-finished products are available. Semi-finished products reduce stock level and able to cover most production line. Usually just fine machining and assemble/test needed.
Classification of Valve
Valve Classsification
When design valve, selcect valve type, purchase valve, we need to know valve classfication first.
The first category
Automatic valve: to rely on the media (liquid, gas) own abilities and self-action of the valve. Such as check valves, safety valves, control valves, steam traps, valves, etc.
The second category
Actuated valves: With manual, electric, hydraulic, pneumatic valves to manipulate the action. Such as gate valves, globe valves, throttle valves, butterfly valves, ball valves, plug valves, etc. Continue reading “Classification of Valve”
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”
IP code – Ingress Protection Ratings(valve actuator)
IP – Ingress Protection Ratings, also named as International Protection Rating, is used to specify the environmental protection – electrical enclosure – of electrical equipment. like valve electric actuator.
Ingress Protection (IP) ratings are developed by the European Committee for Electro Technical Standardization (CENELEC) (NEMA IEC 60529 Degrees of Protection Provided by Enclosures – IP Code), specifying the environmental protection the enclosure provides.
The IP rating normally has two (or three) numbers:
1. Protection from solid objects or materials
2. Protection from liquids (water)
3. Protection against mechanical impacts (commonly omitted, the third number is not a part of IEC 60529) Continue reading “IP code – Ingress Protection Ratings(valve actuator)”
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”