HG 21589.2-1995 Translucent Glass Plate Liquid Level Gauge (PN6.3) HG21589.2-1995 Standard download decompression password: www.bzxz.net

Additional Notes
Proposing Unit:
Editing Unit
Main Drafters
Proposing Unit, Chief Editing Unit
And Main Drafters
Equipment Design Technology Center Station of Ministry of Chemical Industry
China Huanqiu Chemical Engineering Corporation
Zou Zhiguang
Successor: Wang Xiaohua
Shi Huijuan
Xue Tijun
Kong Xianglin
Hao Wuchang
Xu Zhiyuan
Transparent Glass Plate Liquid Level Gauge (PN6.3)wwW.bzxz.Net
HG21589.2-95
Subject Content and Scope of Application
1. 0.1 This standard specifies the structural type, size, technical requirements and selection provisions of the transparent glass plate liquid level gauge with a nominal pressure of 6.3 MPa. The nominal pressure of this standard is 6.3MPa, and the operating temperature is 0~250℃; when the operating temperature exceeds 200℃, the maximum allowable (non-impact) operating pressure shall be determined according to Table 1.0.3 of HG21588-95 standard.
The corrosion margin in this standard shall be as specified in Table 1.0.2. 1. 0. 2
1. 0. 2Corrosion
Material code
Carbon steel1
Stainless steel1
Corrosion allowance (mm)
Reference standard
HG21588-95 "Standard series and technical requirements for glass plate liquid level gauges" Structural types, basic specifications and dimensions
The structural types recommended in this standard are two types of liquid level gauges: "bottom with valve" and "bottom with screw plug", which are respectively "ordinary type" and "insulation type". The parameters and dimensions are shown in Table 3.0.1 and Figure 3.0.1. 3.0.2 The glass plate is in accordance with the standard QB 776-80 Glass Plate and Glass Tube for Liquid Level Gauge, with specification number T280.
Light-proof Glass Plate Liquid Level Gauge (RN6.3) Parameters and dimensions of the screen 3.0.1
Heating steam pipe
Liquid level gauge nominal length light-transmitting dimension total light-transmitting length
L (mm) jLiX1mm)
260×14
260×14
260×14
260×14
1750260×14
*(k》
Bottom with valveBottom with screw plug
Interface spacing
Ordinary insulation typeOrdinary insulation type
28.128. 3826. 126. 38
44.98 44.9242.9842, 92
61. 88 61. 45 59. 88|59. 45
78.7677.9776.7675.97
93.6592.51
“Carbon steel (Class 1), stainless steel (Class) liquid level gauges have the same weight. 15
Insulation pipe
U-shaped pipe
Pipe joint
Insulation pipe
Needle valve
Glass plate
Needle valve
~253 (open)
Heating steam pipe interface||t t||Transparent glass plate liquid level gauge (PN6.3) Structural diagram 11
Uniform distribution in the middle of the span
Insulation
Type 0 pipe
Pipe joint
Insulation pipe
253 (open)
Heating steam pipe
Technical requirements
Should comply with the relevant provisions of HG21588-95 "Glass plate liquid level gauge standard series and technical requirements",
Selection regulations
5. 1 Flange size and type for external connection The nominal diameter of the flange is DN20 or 3/4″. 5. 1. 1
The flange types are A, B and C. The connection dimensions are as follows: 5. 1. 2
Type A, raised face flange (RF), according to HGJ 50-91, PN6.3 (10); Type B; raised face flange (M), according to HGJ 51-91, PN6. 3(10); C-type sinus flange (RF), according to ANSIB16.5W.N.600#. 5.2
This standard uses dyed graphite composite gaskets. Users can choose to replace materials with preload pressure less than or equal to 48.5MPa and gasket coefficient m less than or equal to 2 according to operating conditions and medium characteristics, but they must be noted in the equipment assembly drawing. 5.3 Marking, specifications
Marking regulations and examples should comply with the relevant regulations in HG21588-95 standard 3.3.1
5. 3. 2 Various specifications of liquid level gauges in this standard are selected according to Table 5. 3. 2 and indicated in the details column of the equipment assembly drawing.
Table 5.3.2 Specifications and markings for light-transmitting glass liquid level gauge (PN6.3)
Liquid level gauge
A(BC) T6.3-I -550V(P)
Liquid level gauge A(BC)
T6.3-[ -850V(P)
Liquid level gauge A(B,C)
T6.3-[-1150V(P)
Liquid level gauge A(B,C)
T6:3-I -1450V(P)
Liquid level gauge
T6, 3-I -1750V(P)
Liquid level gauge
T6.3-I -550V(P)
Face gauge
T6. 3- I -850V(P)
Liquid level gauge
A(B, C)
T6. 3 --- 1 -1150V(P)
Liquid level gaugeA(B,C)
T6. 3- I -1450V(P)
Face gauge
T6. 3- 1 -1750V(P)
Liquid level gauge
T6. 3- I W-550V(P)
A(B,C)
Liquid level gauge
Axillary gauge
Quilt gauge
Hidden gauge
T6. 3- I W-850V(P)
T6. 3-- I W--1150V(P)
T6. 3- 1 W-1450V(P)
T6. 3 -- 1 W-1750V(P)
Liquid level gauge A(BC)
T6. 3 - [W-550V(P)
Reduced surface gauge A(BC)
T6. 3-- IW-850V(P)
T6. 3- I W-1150V(P)
Starved surface gauge
T6. 3- I W-1450V(P)
Liquid level gauge
T6. 3- I W-1750V(P)
Standard enclosure (i.e. construction drawing) drawing number
HG 21589. 2-95-1
HG 21589. 2- 95-2
HG 21589. 2- 95-3
HG 21589. 2—95-4
HG 21589. 2—95-5
HG 21589. 2 - 95--6
HG 21589. 2-95-7
HG 21589. 2-- 95 --8
HG 21589. 2--959
HG 21589. 2—95-10
HC 21589. 2-95-11
HG 21589. 2-95-12
HG 21589. 2-- 95 - 13
HG 21589. 2--95-14
HG 21589.
HG 21589, -95-16
HG 21589. 2-95-- 17
HG 21589. 2-95- 18
HG 21589. 2-95-19
HG 21589.2—95—20
Additional Notes
The unit proposing this standard, the editor-in-chief
and the main drafters
Equipment Design Technology Center of the Ministry of Chemical Industry
Decay Ball Chemistry
Main drafters
Chief Sprayer
Kong Xianglin
Xu Zhiyuan
Zou Zhiguang
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