Some standard content:
Table of special valves and pipeline accessories
HG 20519.21-92
1.0.1 Content and filling requirements
Table of special valves and pipeline accessories
HG 20519.21-92
1 List of special valves and pipeline accessories
(See Table 1)
This table is filled in item by item according to the different types of special valves and special pipeline accessories. The special features of special valves and special pipeline accessories are that the state and characteristics of the logistics will change after passing through them, such as changes in pressure, changes in logistics state and composition, changes in sound frequency and combustion state; or they have some special functions in normal production operation and safe production. Therefore, they are different from valves and pipeline accessories that are generally only used for opening and connecting. Special valves and pipeline accessories are generally selected or designed after calculation. Special valves include: safety valves, steam traps, pressure reducing valves, breathing valves and other special valves. Special pipeline accessories include: pipeline filters, bursting discs, silencers, flow limiting orifice plates, metal bellows or hoses for special processes, flame arresters, pipeline mixers, eye washers, emergency showers, sight glasses and other special pipeline accessories. Filling in the list: including serial number, number, name, drawing number, pipeline number (equipment position number), main specifications and data sheet drawing number, quantity, remarks and other contents. 1.0.2. Serial number
Arrange in order according to the actual filling order, and generally fill in special valves first. 1.0.3 Number
Fill in the classification code and corresponding serial number of special valves and pipeline accessories. The general filling form is "classification code-serial number".
Generally, SV is used as the special valve code, SP is used as the special pipeline accessory code, and RO is used as the flow limiting orifice code. The serial number of special valves and pipeline accessories is generally expressed in four digits. The first two digits represent the main item number, and the last two digits represent its arrangement sequence number. The two-digit number starts from 01 and the highest is 99. In the pipeline instrument flow chart, the numbers are filled in a circle or square with a diameter of 10mm, with the code on the top and the serial number on the bottom. Example:
Q10) or
1.0.4 Name
Fill in the Chinese name of the special valve and pipeline accessories. 1.0.5 Drawing number
Fill in the pipeline and instrument flow chart number where the special valve and special pipeline accessories are located. 99
1.0.6 Pipeline number (equipment position number)
Fill in the pipeline number or equipment position number of the pipeline number where the special valve and pipeline accessories are located. 1.0.7 Data sheet drawing number
Fill in the drawing number of the special valve and special pipeline accessory data sheet. 1.0.8 Quantity
Fill in the actual quantity selected for design.
1.0.9 Remarks
Fill in some special requirements for special valves or special pipeline accessories and some matters that need to be explained. For example, the manufacturer selected for design (if necessary), precautions in construction and installation, and on-site manufacturers should also note them. 2 Special valve and pipeline accessories data sheet
(see example table 2 to 8)
2.0.1 Preparation content
According to the list of special valves and pipeline accessories, the valves and pipeline accessories listed in the table are introduced one by one. Due to different categories, the content and format of the data sheet are not exactly the same. For special valves and pipeline accessories that are not specified, they can be prepared according to the requirements of ordering, installation, construction and production. Various data sheets generally include drawing number, name, quantity, number, drawing number, installation location, use conditions, technical specifications, model or drawing number, material, remarks and drawings (if any) and other contents. 2.0.2 Drawing number and name
Prepare the data sheet drawing number according to the different categories of special valves and pipeline accessories. Only one drawing number is compiled for the same category. The name of the data sheet should be filled in with the Chinese name of the special valve or special pipeline accessory. 2.0.3 Serial number, quantity
Serial numbers in the data sheet are arranged according to the different models and specifications of valves or pipeline accessories. For quantity, fill in the quantity required by the design.
2.0.4 Number, drawing number
Fill in the number according to 1.0.3, and fill in the drawing number according to 1.0.5. 2.0.5 Installation location
Fill in the specific location on the pipeline or equipment (machine). If there is a limited size requirement, the specific location and number must also be stated, and the corresponding pipeline number and the position number and nozzle number of the equipment (machine) must be filled in. 2.0.6 Conditions of use
Fill in the operating conditions and design conditions of special valves and pipeline accessories, including the name, state and physical properties of the medium, flow, pressure (including pressure difference requirements), temperature (including temperature difference requirements) and other relevant conditions of use. The scope of filling includes the before and after conditions of special valves and pipeline accessories, as well as the necessary external environmental conditions. 2.0.7 Technical Specifications
Fill in the specifications and dimensions (nominal pressure, nominal diameter), connection methods (welding, threaded connection, flange connection, etc., corresponding model standards) of special valves and pipe accessories, technical specifications of internal parts (such as mesh specifications of filter screen, throat diameter of safety valve, pressure adjustment data of safety valve, etc.). 100
2.0.8 Model or drawing number
Fill in the selected model for standard products; fill in the manufacturing drawing number for non-standard products. 2.0.9 Materials
Fill in the name of the material selected for design (in Chinese, material code). 2.0.10 Design (or selection) instructions
Fill in the relevant matters of design or selection, such as the requirements of installation type, vertical or horizontal, the installation height and wind pressure value of the muffler, the noise control range of the muffler; the installation requirements of the safety valve outlet pipe, the requirements for the selected materials; and some other issues and matters that need to be explained. 2.0.11 Remarks
Fill in the requirements for suppliers and matters that need to be explained. If necessary, fill in the name of the manufacturer of the selected product. If it is difficult to express clearly in words during manufacturing and construction and installation, a simple diagram can be drawn to explain. See example table:
Table 1 List of special valves and pipeline accessories
Safety valve data table
Trap data table
Table 4 Filter data table
Flow limiting orifice data table
Burst disc data table
Muffler data table
Flame arrester data table
PI drawing number
Project name:
Design project:
Pipeline number
Or equipment position number
Special valves and pipeline accessories
List (Table 1)
Data table drawing number
Page of total pages.
Safety valve number
Safety valve model
Required quantity
Installation position
Fluid medium
Starting (setting or discharge) pressure, MPa
Initial back pressure, MPa
Operating temperature, ℃
Safety valve size
Valve seat throat diameter, mm
Inlet
Outlet
Valve material
Remarks:
Flange surface
Pressure level
Flange surface
Pressure level|| tt||Project name:
Design project:
Safety valve data sheet
(Table 2)
Page of pages
Trap number
Manufacturer model
Required quantity
Installation position
Condensate load, kg/h
Safety factor
Continuous flow
Condensate load × safety factor, kg/h
Daily pressure
Saturation temperature, ℃
Trap
Bright body material
Water valve connection
Pressure level
Pressure level
With filter or not
Remarks:
Project name:
Design project:
Trap data sheet
(Table 3)
Total pages
Filter number
PI diagram number
Pipeline number
Continuous operation or intermittent operation
Media name and status
Flow rate, kg/h
Viscosity under operating conditions, MPa*s
Heavyness under operating conditions, kg/ m2
Operating temperature, ℃
Operating pressure, MPa
Allowable pressure drop, MPa
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When the net is dirty
Design temperature, ℃
Design pressure, MPa
Shell material
Filter material and specifications
Connection dimensions and specifications (pipe orifice table)
Other instructions and drawings
Project name:
Design project:
Filter data sheet
(Table 4)
Page of pages
Limiting orifice plate number
Pipeline number
Process data
Material name
Material state
Material flow rate, m*/h (kg/h)
Temperature before limiting, ℃
Pressure before limiting, MPa
Pressure after limiting, MPa
Vapor pressure of medium at operating temperature, MPa
Limiting orifice plate data
Pipeline grade
Medium Re number before limiting
Limiting aperture, mm
Number of openings of limiting orifice plate
Limited R e number
Material of flow limiting orifice
Connection type of flow limiting orifice
Flange standard
Edge spacing of flow limiting orifice, mm
Height of welding weld, mm
Edge spacing of flow limiting orifice, mm
Minimum thickness of flow limiting orifice, mm
Plates spacing of flow limiting orifice, mm
Other instructions and drawings
Project name:
Design project:
PI drawing number
Flow limiting orifice data sheet
Table 5)
Operating viscosity of medium , MPa·s
Gas density, kg/m2
Gas molecular weight
Gas compressibility coefficient
Gas adiabatic index
Liquid gravity, kg/m
Whether there is vaporization and desorption after flow restriction
Inner diameter of pipeline, mm
Number of flow restriction orifice plates
Bursting disc number
Equipment name (pipeline number)
Normal operating conditions of equipment (pipeline):
Pressure on the front of the bursting disc, MPa
Pressure on the back of the bursting disc, MPa
Series Whether the system has vacuum or negative pressure process
Equipment (pipeline) design conditions
Design pressure, MPa
Working medium name and state (gas, liquid, multiphase) Medium properties under operating conditions
Viscosity, MPa\s
Number of bursting discs
Operating temperature of the front of the bursting disc, ℃
Operating temperature of the back of the bursting disc, ℃
Design temperature
Freezing point, ℃
Required bursting pressure and allowable error, MPa
Required bursting temperature, ℃
Diameter of discharge port, DN mm
Preliminary selection of rupture disc materials
Standards, models and specifications of flanges for mounting the holderMaterial used for the holder
Upper holder
Other requirements
Mounting holder (non-standard flange)Attached drawingsProject name:
Design project:
Lower holder
Bursting disc data sheet
(Table 6)
Corrosiveness
Name: Muffler||tt ||No.:
P-Drawing No.:
Installation Location:
Purpose:
Model, Specification:
Process Data: Material Name, Related Physical Properties, Operating Pressure, Operating Temperature, Allowable Pressure Drop, etc.Operation Cycle: Continuous or Intermittent
Simple Installation Diagram: Indicate the Related Connection Sizes and Whether to Exhaust the AtmosphereRelated Design Requirements:
1. Installation Form: Vertical or HorizontalIndoor or Outdoor, Installation Height. 2. Related Natural Conditions: Wind Pressure Value that Outdoor Muffler Bears. 3. Selection of Muffler Material (including Sound-absorbing Material), Shell Thickness Requirements. 4. Maximum Flow Rate Limit of Logistics.
5. Requirements for Connection and Support.
6. Other Requirements: Whether there is drainage, lightning protection grounding, etc.Noise Reduction Requirements:
1. Original Noise Condition: Frequency-Decibel Table (Muffler is supplied as a complete set of equipment or machine, which can be omitted). 2. After noise elimination, it should comply with the national noise control standards for relevant industrial enterprises, or comply with more appropriate industry and enterprise standards.
Project name:
Design project:
Silencer data sheet
(Table 7)
Name: Flame arrester
No.:
Category:
Model, specification:
PI drawing number:
Installation location:
Quantity:
Process data: Material name, relevant physical properties, design pressure, design temperature, allowable pressure drop, etc. Whether it is used in conjunction with the valve:
Installation diagram: indicate the relevant connection dimensions and whether it is exhausted. Fire barrier structure
Design requirements:
1. Installation form: vertical or horizontal, indoor or outdoor, installation height. 2. Shell material, fire barrier material.
3. Connection and support requirements.
4. Antifreeze measures.
Remarks: (Manufacturer name or drawing number, etc.) Project name:
Design project:
Flame arrester data sheet
(Table 8)
Page 1Antifreeze measures.
Remarks: (Manufacturer name or drawing number, etc.) Project name:
Design project:
Flame arrester data sheet
(Table 8)
Page ContributionAntifreeze measures.
Remarks: (Manufacturer name or drawing number, etc.) Project name:
Design project:
Flame arrester data sheet
(Table 8)
Page Contribution
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