HG 21589.1-1995 Translucent Glass Plate Liquid Level Gauge (PN2.5) HG21589.1-1995 Standard download decompression password: www.bzxz.net

Translucent glass plate liquid level gauge (PN2.5)
HG 21589. 1 --95
Subject content and scope of application
This standard specifies the structural type, dimensions, technical requirements and selection regulations of light-shielded glass plate liquid level gauges with a nominal pressure of 2.5MPa 1. 0.1
. This standard is applicable to glass plate liquid level gauges with a nominal pressure of 2.5MPa and an operating temperature of 0~250℃.
The corrosion allowance in this standard shall be as specified in Table 1.0.2. 1.0.2
Table 1. 0. 2
Material code
Carbon pot 1
Stainless steel!
Brain erosion degree
Reference standard
HG21588-95 Standard series and technical requirements for glass plate liquid level gauges c
Structural type, basic parameters and dimensions
The structural types of this standard are two types of liquid level gauges: "bottom equipped with valve" and "bottom equipped with screw plug", which are further divided into "ordinary type" and "insulation type". The basic parameters and dimensions are shown in Table 3.0.1 and Figure 3.0.1. The glass plate is in accordance with the standard QB776-80 "Glass plate and corrugated glass tube for liquid level gauges", and the specification number is T280.
Table 3.0.1 Light-proof plate liquid level gauge (PN2. 5) Basic parameters and dimensions Liquid level gauge nominal length Translucent size
Heating fumigation
(kg)
Light-proof total length
Bottom valve Bottom screw plug
Interface spacing
Number L (mm) Lt×14(mm)
Lg(mm)
260X14
260×14
260×14bZxz.net
260X14
260×14
La(mm)
Ordinary type heat preservation type Ordinary type heat preservation type
23.2625.2721.2623.27
35.6139.0233.6137.02
52.7745.96
60. 366. 558. 3
80.2470.7
Carbon yoke (Class I), stainless steel saw (1 The liquid level calculation is the same as that of the other types. Red
Insulation pipe
U-type
Pipe joint
Insulation pipe
Needle valve
Glass plate
Needle valve
Figure 3. 0. 1
~239 (open)
Heating steam pipe interface
Transparent glass plate liquid level gauge (PN2.5) Structural diagram A type
Uniform distribution in the middle of span
Insulation pipe
Printed pipe
239 (open)
Heating steam pipe
11 in the middle
4-0,14
Uniform distribution in the middle of span
4-Φ19
Uniform distribution in the middle of span
Figure 3. 0. 1(wisp)
Insulation type
Tidal explosion (hand
Tungsten inert gas argon arc
Smart goods
A(B, C) needle valve (item number 1) with valve type 85
1, Class I material-120
A(BC) needle valve (item number 1 or item number 9)
with screw plug type
Transparent glass plate liquid level gauge (PN2.5) structure diagram +
Technical requirements
Should comply with the relevant provisions of HG 21588-95 "Glass plate liquid level gauge standard series and technical requirements" standard.
Selection regulations
Flange size and type for external connection
The nominal diameter of the flange is DN20 or 3/4*.
The flange types are A, B and C, and their connection dimensions are as follows5. 1. 2
Type A: Raised face flange (RF), according to HGJ50-91, PN4.0Type B: Raised face flange (M), according to HGJ5]-91, PN4.0Type C: Raised face flange (RF), according to ANSIB16.5W.N.300#. 5.2
Users can select flexible graphite composite gaskets according to the operating conditions and medium
This standard uses the material with a pre-tightening specific pressure less than or equal to 48.5MPa and a gasket coefficient m less than or equal to 2 for replacement, but it needs to be indicated in the assembly drawing of the equipment. Marking, Specifications
Marking regulations and examples shall comply with the relevant provisions of HG 21588-95. 5.3.1
5.3.2 The various specifications of liquid level gauges in this standard shall be selected according to Table 5.3.2 and indicated in the detail column of the equipment assembly drawing.
Table 5.3, 2 Translucent glass plate liquid level gauge (PN, 5) Specifications and markings
Liquid level gauge
A(BC)T2.5-I —550V(P)
Liquid level gauge
T2.5-I -850V(P)
Liquid level gaugeA(B,C)
T2. 5-I -- 1150V (P)
Liquid level gaugeA(B,C) T2.5-I -1450V(P)Liquid level gaugeA(B,C)
T2. 5-1 -1750V(P)
T2. 5-1 - 550V(P)
Liquid poison meter
A(B,C)
Cross-surface meter
A(B,C)
T2.5- 1-850V(P)
Cross-surface meter
Olive-surface meter
T2.5- I -1150V(P)
T2. 5- 1 -1450V(P)
Cross-surface meter
T2. 5-- 1 -1750V(P)
A(B,C)
T2.5- I W-550V(P)
T2. 5-- I W-850V(P)
Quilt surface meter
Liquid level meter
T2. 5— I W-1150V(P)
Liquid level meter
T2. 5- 1 W-1450V(P)
Laser surface meter
T2. 5- 1 W-1750V(P)
T2. 5- I W-550V(P)
Reduced surface meter
Carboxylic surface meter
A(B,C)
T2. 5- I W-850V(P)
T2. 5- [W--1150V(P)
Liquid level gauge
Excitation level gauge
A(E,C)
Liquid level gauge
A(B,C)
T2. 5- I W---1450V(P)
T2. 3- W-1750V(P)
Filter standard drawing (i.e. construction drawing) drawing number
HG 21589. 1 -- 95-1
HG 21589. 1 -95-2
HG 21589. 1 - 95- 3
HG 21589. 1 95--4
HG 21589. 1-95-5
HG 21589.1—95-6
HG 21589. 1-95-7
HG 21589.1-95-8
HG 21589.1-95—9
HG 21589. 1-- 95-10
HG 215 89. 1-95-11
HG 21589.1-95-12
HC 21589. 1-95-13
HG 21589. 1-9514
HC 21589. 1-95-15
HG 21589.1-95-18
HG 21589. 1- 95 -- 18
HG 21589. 195- 19
HG 21589. 1- 9520
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