This standard specifies the type, basic parameters, dimensions, technical requirements and relevant use regulations of the quick-open stainless steel hand hole of the rotary cover. This standard is applicable to the quick-open stainless steel hand hole of the rotary cover with a non-impact working pressure less than or equal to PN0.6MPa and a working temperature greater than -20 to 200°C. The temperature rise and pressure drop can be applied to the quick-open stainless steel hand hole of the rotary cover with a working temperature of 300°C. HG 21603-1999 Quick-open stainless steel hand hole of the rotary cover HG21603-1999 Standard download decompression password: www.bzxz.net

Quick-opening stainless steel hand hole for rotary cover
HG 21603--- 1999
1 Subject content and scope of application
This standard specifies the type, basic parameters, dimensions, technical requirements and relevant use regulations of quick-opening stainless steel hand holes for rotary covers. This standard is applicable to stainless steel hand holes for rotary covers with a non-impact working pressure of less than or equal to PNO.6MPa and a working temperature of ≥--20～200℃. It can be applied to stainless steel hand holes for rotary covers with a working temperature of 300℃ for temperature increase and pressure reduction.
GB 880
HG21594
2 Reference standards
"Split pin"
"Pin with hole"
"Classification and technical conditions for stainless steel manholes and hand holes"13
Type, basic parameters and dimensions
Standard number
Gasket 8-3
Hexagonal nut
Joint bolt
Upper plate
Lower ear plate
Note: ①The material of the gasket is allowed to change, but it should be indicated in the container assembly drawing. Material
Stainless steel
20R lined stainless steel
Asbestos rubber sheet
20R lined stainless steel
Q235-A
Q235-A
Low carbon steel
Q235-AF
Maximum non-shock working pressure gauge nominal pressure at working temperature
(MPa）
>--20~100
(MPa)l(mm)
159×4
Working temperature
Maximum non-shock working pressure (MPa)
Joint screw Bolt
E diameter × length
2702302221125140210M20X110
Mass (kg)
13.73.217
3963502627145205320M24X130|430.25839
Note: The height H of the hand hole can be changed if there are special requirements, but the changed H size should be indicated and the stainless steel mass and total mass of the hand hole should be modified. 112
Technical requirements
Technical requirements shall be in accordance with the provisions of HG21594~1999 "Classification and Technical Conditions for Stainless Steel Handholes and Handholes".
Swing cover quick-open stainless steel hand hole drawing catalog name
Construction drawing number
Swing cover quick-open stainless steel hand hole RF150-0.61HG21603--1999--1Number of drawing sheets
Number of sheets 1# drawing
Swing cover quick-open stainless steel hand hole RF250-0.6HG21603-1999--22
Marking examplewwW.bzxz.Net
The swing cover quick-open stainless steel hand hole with a nominal diameter of DN150 and H1=125 has the specified marking symbol:
HG21603
The above example hand hole with H=180 (non-standard size) has the specified marking symbol: Hand hole
150--0.6H=180HG21603
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