JB/T 1118-2001 F1 type float valve

JB/T 1118—2001 This standard is a revision of JB/T 1118—1981 "F1 type float valve". During the revision, the provisions for the weight tolerance of each F1 type float valve were added; F1 type float valves made of 0Cr18Ni9 and 0Cr17Ni12Mo2 materials for 4mm stainless steel plates were added, and the materials were modified accordingly according to the changes in steel standards. This standard specifies the varieties, specifications, technical requirements, markings and packaging of F1 type float valves. This standard is applicable to float valve tower equipment in the chemical and petroleum industries. This standard was first issued in 1968, revised for the first time in 1981, and this is the second revision. JB/T 1118-2001 F1 type float valve JB/T1118-2001 Standard download decompression password: www.bzxz.net

ICS91-220
Standard of the Machinery Industry of the People's Republic of China
JB/T1118-2001
Published on 2001-12-29
Type Float Valve
F1-valve
Implemented on 2002-06-01
China Machinery Industry FederationbzxZ.net
JB/T1118-2001
This standard is a revision of B/T1118-1981 "F1-type float valve". Compared with JB/T1118-1981, the main technical content of this standard has been changed as follows: the provisions on the weight tolerance of each F1-type float valve have been added to the technical requirements 4.3; the F1-type float valve made of OCr18Ni9 and 0Cr17Ni12Mo2 materials suitable for 4mm stainless steel trays have been added to Table 1, and the material has been modified accordingly according to the changes in steel standards. This standard replaces JB/T1118-1981 from the date of implementation. This standard is proposed and managed by Lanzhou Petroleum Machinery Research Institute. The responsible drafting unit of this standard: Lanzhou Petroleum Machinery Research Institute. The participating drafting units of this standard: Beijing Design Institute of Sinopec Group, Luoyang Petrochemical Engineering Company of Sinopec Group. The drafters of this standard: Dong Yiliang, Xie Peijun, Yu Yongbin, Shang Liwei, Liu Wen, Yang Longxu. This standard was first issued in 1968, first revised in 1981, and this is the second revision. This standard is interpreted by Lanzhou Petroleum Machinery Research Institute. 1 Scope
Machinery Industry Standard of the People's Republic of China
F1 Float Valve
Fl-valve
This standard specifies the varieties, specifications, technical requirements, markings and packaging of F1 float valves. This standard applies to float valve tower equipment in the chemical and petroleum industries. 2 Cited standards
JB/T1118—2001
Replaces JB/T1118—1981
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision. Parties using this standard should explore the possibility of using the latest versions of the following standards: GB/T 708—1988
GB/T3280—1992
GB/T1804—2000
JB/T1205—2001
3 Varieties and specifications
Dimensions, shapes, weights and tolerances of cold-rolled steel sheets and strips Stainless steel cold-rolled steel sheets
General tolerances Tolerances of linear and angular dimensions without tolerances Technical conditions for tower trays
3.1 Type F1 float valves are divided into light valves and heavy valves: light valves are punched from thin steel sheets with a thickness of 1.5 mm; heavy valves are punched from thin steel sheets with a thickness of 2.Q mm. 3.2 The minimum opening of the type F1 float valve is 2.5 mm; the maximum opening (Hs) is 8.5 mm. 3.3F1 type float valve is made of the following three materials: ocr13;
OCr18Ni9;
0Cr17Ni12Mo2
If other materials are needed, they can be separately proposed when ordering and indicated in the drawing. 3.4The applicable plate thickness of the float valve manufactured according to this standard is 2, 3, 4mm; the size of the air riser hole is Φ39imm. 3.5The basic parameters and dimensions of F1 type float valve shall comply with the provisions of Figure 1~Figure 2 and Table 1. 4 Technical requirements
4.1The material selection of F1 type float valve shall comply with the provisions of GB3280, and shall be punched with steel plates of [A] grade accuracy specified in GB Jiang 708. For the same batch of orders, try to use the same batch of steel plates. 4.2The free size tolerance of the float valve shall comply with the m-grade requirements specified in GB1804. 4.3 The weight tolerance of F1 type float valve is: light valve shall not exceed ±0.000kg, heavy valve shall not exceed ±0.000&g. The weight of float valve shall be sampled in batches and the average value shall be taken to meet the requirements of this standard. China Machinery Industry Federation approved 2002-0601 implementation on December 29, 2001
JB/T1118—2001
4.4 The inner and outer edges and bent feet of the float valve shall not have burrs that affect installation and use. 5 Marking and packaging
5.1 The float valve mark consists of four parts:
-F1 means "type 1 float valve";
-Q means "light valve";
Z means "heavy valve";
2,3,4 means the thickness of the tower plate applicable to the float valve is 2,3,4mm respectively;A means the material of the float valve is OCr13;
-B means the material of the float valve is OCr1&Ni9;C means the material of the float valve is OCr17Ni12Mo2. Marking example:
For F1 type heavy valve with a tower plate thickness of 3mm and made of 0Cr18Ni9 steel, the mark is: float valve F1Z-3BJB/T1118-2001
If the user needs, the mark can be printed on the surface of the finished product. The printing method and marking content shall be agreed upon by the supply and demand parties. 5.3 The acceptance and packaging of the float valve shall comply with the provisions of B/T1205. r48
Figure 1F1 type float valve
A--A condensation rotation
BB rotation
Distance to center R19
FIQ-4A
FIZ-4A
F1Q-4B
F1Z-4B
F1Q-4C
FIZ-4C
F1Q-3A
FIZ-3A
F1Q -3B
F1Z-3B
F1Q-3C
FIZ-3C
F1Q-2B
F1Z-2B
F1Q-2C
FIZ-2C
Basic parameters
3—2001
Figure 2 Expanded diagram
OQ:18N9
OQ:17N12Mb2
O:18N9
OQ-17N12Mb2
O:18N9
0Q-17N12Mb2
Mechanical Industry Standard
F1 Float Valve
JB/T1118—2001
Published and issued by the Mechanical Science Research Institute
Printed by the Mechanical Science Research Institute
(No. 2, Shouti South Road, Beijing: Postal Code 100044)*||tt ||1/16 sheet 1/2
Format 880×1230
Word count 8,000
First edition January 2002
First printing January 2002
Print run 1-500
Price 10.00 yuan
No. 2001-172
Mechanical Industry Standard Service Network: http:/wwwJB.accn100z-81 /
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