1、UDC 536.51-033.5 DEUTSCHE NORM September 1991 DIN Industrial straight stem liquid-in-glass thermometers with round case, of nominal size 250 Dimensions and nominal ranges 16174 Maschinen-Glasthermometer mit rundem Gehuse; NenngrBe 250, Bauart gerade; MaBe und Anzeigebereiche This standard supersedes
2、 December 1968 editions of this standard and DIN 16177 and, together with September 1991 editions of DIN 16175, DIN 16176 and DIN 16195, also supersedes December 1968 edition of DIN 16178 Part 1. In keeping with current practice in standards published by the International Organization forStandardiza
3、tion (/SO), a comma has been used throughout as the decimal marker. Dimensions in mm 1 Scope and field of application This standard specifies dimensions and nominal ranges of industrial straight stem liquid-in-glass thermometers (thermometers, for short) with round case, of nominal size 250, as used
4、 for measuring temperature in machinery and other plant. 2 Dimensions and designation For general tolerances, accuracy grade m as specified in IS0 2768 shall apply. 2.1 Design Thermometers are not expected to conform to the design illustrated here; compliance is only required with respect to the dim
5、ensions specified. Type A, with push-in stud Case Immersion tube Thermometer insert Type B, with screwed stud end (with G 3/4A or M 27 x 2 thread) I Type C, with union nut (with G 314 or M27 x 2 thread) Other dimensions and details as for type A. *) Width across flats. 1) At present at the stage of
6、draft. Continued on pages 2 to 4 DIN 16 174 Eng/. Price group uth Verlag GmbH. Berlin. has the exclusive right of sale for German Standards (DIN-Normen). 04 92 Sales No. 0106 Page 2 DIN 16174 Thermometer DIN 16174 - B G - 100 x 160 - Ms Code letter for type of screw thread Designation DIN number Cod
7、e number for nominal range as per table 3 Built-in length, 11, as per table 1 Material number as per DIN 16195 for parts in contact with fluid Type Table 1. Dimensions of types A, B and C thermometer I immersion I Built-in length, II I Approx. immersed length, Z2 1 O0 130 1 O0 160 190 1 60 144 144 2
8、50 280 250 234 234 400 430 400 384 304 630 I - 630 1 61 4 - 1000 I - I 1000 I 984 - 2.2 Case Details of design not indicated here shall be selected as appropriate to the given application. M 25 Case DIN 16 174 - 250 - Ms Designation DIN number Nominal size Material symbol as per DIN 16195 DIN 16174
9、Page 3 d i03 8 10 Bottom section length, Approx. For thermometers with 1, 15 immersed length, (as per table 1) of, Limit deviations 16 for type A for type B for type C 105 89 1 O0 255 -5 239 250 405 389 400 - 635 61 9 630 1005 -10 989 1 O00 O O 8 10 8 68 105 165 255 635 608 630 978 1 O00 O 1005 -10
10、116 41 93 78 130 153 190 213 - - 138 303 228 280 453 -8 378 430 O -5 O O -5 1 38 228 250 378 400 Thermometer inserts are not expected to conform to the Insert DIN 16174 - 100 x 105 x t designs illustrated here; compliance is only required with respect to the dimensions specified. Designation DIN num
11、ber “1 Fusion sealed Code number for nominal range as per table 3 Bottom section length, Z5. as per table 2 Immersed length, l6, as per table 2 3 Nominal ranges Table 3. Nominal ranges I Nominal range, in “C I Code number -60 to +40 -30 to +50 oto 100 oto 120 Oto 160 o to 200 Oto 300 O to 400 O to 5
12、00 O to 600 40 50 1 O0 120 160 200 300 400 500 600 3 - 4 Technical delivery conditions Thermometers shall be provided either with pipe thread made to IS0 228 Part 1 (indicated by code letter G in their designation) or with IS0 metric screw thread made to DIN 13 Parts 4 and 7 (correspondingly indiact
13、ed by code letter M). See DIN 16195for requirements to be met bythermometers and thermometer inserts, and for the methods of testing compliance with them. Page 4 DIN 16174 Standards referred to DIN 13 Part 4 DIN 13 Part 7 DIN 3852 Part 1 DIN 3852 Part 2 DIN 16195 IS0 228-1 :1982 IS0 2768-1 : 1989 IS
14、0 metric sxew threads; 0,75 mm fine pitch threads with diameters from 5 mm to 110 mm; nomirial sizes IS0 metric screw threads; 2 mm fine pitch threads with diameters from i7 mm to 300 mm; nominal sizes Screwed stud ends and tapped holes with metric fine pitch thread for compression couplings, valvos
15、 and screwed plugs; dimensions (at present at the stage of draft) Screwed stud ends and tapped holes with pipe thread for compres- sion couplings, valves and screwed plugs; dimensions Industrial liquid-in-glass thermometers with round or V-shaped case; requirements and testing Pipe threads where pre
16、ssure-tight joints are not made on the threads; designation, dimensions and tolerances General tolerances; linear and angular tolerances without individual indication on drawings Other relevant standards DIN 16167 Industrial straight stem liquid-in-glass thermometers with round case, of nominal size
17、 160; dimensions and nominal ranges DIN 16168 Industrial 90angle stem liquid-in-glass thermometers with round case, of nominal size 160; dimensions and nominal ranges DIN 16175 Industrial 90angle stem liquid-in-glass thermometers with round case.of nominal size 250; dimensions and nominal ranges DIN
18、 16176 Industrial 135“ angle stem liquid-in-glass thermometers with round case, of nominal size 250; dimensions and nominal ranges Previous editions DIN 16174: 08.63.12.68; DIN 16177: 08.63, 12.68; DIN 16178 Part 1: 08.63.12.68. Amendments The following amendments have been made to the December 1968
19、 editions of this standard, DIN 16177 and DIN i6178 Part i. a) Code letter R (for pipe thread) has been changed to G, in line with IS0 228 Part 1. b) The case previously specified in DIN 16177 has been included here and the designation amended accordingly. c) The thermometer inserts previously speci
20、fied in DIN 16178 Part 1 have been included here. d) The diameter of thermometer inserts has been changed from (20,5 f 1) mm to (20 f 0,3) mm. e) The limit deviations for the scale length have been changed from 18mm to 115 mm. f) The nominal range O to 120C has been included. g) Types D and E thermometers have been dropped. International Patent Classification G O1 K 1/02 G O1 K 5/00
