Type. Facts. Flanged Safety Relief Valves spring loaded PMetric + US Units. The-Safety-Valve.com
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1 Type 26 Flanged Safety Relief Valves spring loaded Metric + US Units Facts The-Safety-Valve.com
2 Type 26 Orifice Selection charts 1 x 1 3L x 1 3 x 1 6 x 1 9 x 1 1 x 1 2 x 3 WCB X X X X X WC X X X WCB WC6 T [ F] p [bar] T [ C] p [psig] CF8M 1 x 1 3L x 1 3 x 1 6 x 1 9 x 1 1 x 1 2 x X X 264.6X X p [bar] CF8M T [ F] T [ C] p [psig]
3 Type 26 Orifice Article numbers, dimensions and weights Article numbers Valve size Flange rating class Inlet x Outlet 1 x 1 3L x 1 3 x 1 6 x 1 9 x 1 Actual Orifice diameter d [mm] Actual Orifice area A [mm 2 ] Body material WCB Art. No CF8M Art. No WC Art. No LCB Art. No ) lease add code for the required cap or lifting device. See below. Dimensions and weights Metric units Weight [kg] Center to face Inlet a [mm] Outlet b s Height (H4) Standard H max [mm] Bellows H max Support brackets A [mm] B C Ø 18 Ø 18 Ø 18 Ø 18 Ø 18 D E US units Weight [lbs] Center to face Inlet a [inch] Outlet b s / / / 16 Height (H4) Standard H max / / / 2 [inch] Bellows H max / / / 16 Support brackets A 1 1 / / / / / 16 [inch] B 6 / 16 6 / C Ø 23 Ø 23 Ø 23 Ø 23 Ø 23 D 1 / 16 1 / / / / 16 E Code for lifting device Lifting device H2 H3 H4 H3 Bonnet closed closed closed open WCB 1.619, WC , LCB CF8M Support brackets Balanced design 63
4 Type 26 Orifice ressure temperature ratings Metric units Valve size Flange rating class Inlet x Outlet 1 x 1 3L x 1 3 x 1 6 x 1 9 x 1 Actual Orifice diameter d [mm] Actual Orifice area A [mm 2 ] Minimum set pressure [bar] S/G/L Minimum set pressure [bar] S/G Balanced Inconel [bar] L Body material: WCB ressure range p [bar] S/G/L Article numbers Maximum -29 to 38 C set pressure 232 C C Balanced design Body material: CF8M ressure range p [bar] S/G/L Article numbers Maximum -268 to -6 C set pressure -9 to -29 C to 38 C C C C Balanced design Body material: WC ressure range p [bar] S/G/L Article numbers Maximum 427 C set pressure 38 C Balanced design Body material: LCB ressure range p [bar] S/G/L Article numbers Maximum -46 to 38 C set pressure 2 C C Balanced design ) lease add code for the required cap or lifting device. See page 13. Remark: SA 32 Gr. LCB is not listed in the AI 26. ressure-temperature Rating acc. to ASME B16.34 Table The stated ressure-temperature Rating are taken from ASME B16.34 Table if the maximum pressure is not limited by AI 26. Due to the extended material test certificate the LESER LCB can be applied as LCC, WCB, WCC and the respective pressure-temperature range as well. 64
5 Type 26 Orifice ressure temperature ratings US units Valve size Flange rating class Inlet x Outlet 1 x 1 3L x 1 3 x 1 6 x 1 9 x 1 Actual Orifice diameter d [inch] Actual Orifice area A [inch 2 ] Minimum set pressure [psig] S/G/L Minimum set pressure [psig] S/G Balanced Inconel [psig] L Body material: WCB ressure range p [psig] S/G/L Article numbers Maximum -2 to 1 F set pressure 4 F F Balanced design Body material: CF8M ressure range p [psig] S/G/L Article numbers Maximum -4 to -76 F set pressure -7 to -21 F to 1 F F F F Balanced design Body material: WC ressure range p [psig] S/G/L Article numbers Maximum 8 F set pressure 1 F Balanced design Body material: LCB ressure range p [psig] S/G/L Article numbers Maximum - to 1 F set pressure 4 F F Balanced design ) lease add code for the required cap or lifting device. See page 13. Remark: SA 32 Gr. LCB is not listed in the AI 26. ressure-temperature Rating acc. to ASME B16.34 Table The stated ressure-temperature Rating are taken from ASME B16.34 Table if the maximum pressure is not limited by AI 26. Due to the extended material test certificate the LESER LCB can be applied as LCC, WCB, WCC and the respective pressure-temperature range as well. 6
6 Type 26 Type 26 Dimensions Metric units Safety valve dimensions [mm] Support brackets [mm] A B C D E A B C D E A B C D E Flange rating class 1 x 1 3L x 1 3 x 1 Valve size 1 D 2 1 D 2 1 D 2 D d [mm] lease see 1 D A [mm 2 ] Ø x 1 13 Ø E 2 1 E 2 1 E 2 E d [mm] lease see 1 E A [mm 2 ] Ø x 1 13 Ø / 2 F / 2 F / 2 F 2 F d [mm] A [mm 2 ] Ø Ø Ø / 2 G / 2 G / 2 G 3 G d [mm] A [mm 2 ] Ø Ø Ø Flange rating class 1 x 1 3L x 1 3 x 1 Valve size 1 1 / 2 H / 2 H 3 2 H 3 H d [mm] A [mm 2 ] Ø Ø Ø J 3 2 J 3 3 J 4 J d [mm] A [mm 2 ] Ø Ø Ø K 4 3 K 4 3 K 4 WCB, LCB, d [mm] lease see 3 K CF8M (WC6) A [mm 2 ] Ø x Ø K WC6 Flange rating class 1 x 1 3L x 1 3 x 1 Valve size 3 L 4 3 L 4 4 L 6 L M N Q R T d [mm] A [mm 2 ] Ø Ø Ø M 6 4 M 6 4 M 6 d [mm] lease see 4 M A [mm 2 ] Ø x Ø N 6 4 N 6 4 N 6 d [mm] lease see 4 N A [mm 2 ] Ø x Ø d [mm] A [mm 2 ] Ø Ø Ø Q 8 6 Q 8 6 Q 8 d [mm] lease see 6 Q A [mm 2 ] Ø x Ø R 8 6 R 8 6 R 1 d [mm] A [mm 2 ] Ø Ø Ø T 1 8 T 1 8 T 1 d [mm] lease see 8 T A [mm 2 ] Ø x Ø
7 d = Actual orifice diameter A = Actual orifice area A B C D E A B C D E A B C D E A B C D E 6 x 1 9 x 3 1 x 3 2 x 3 1 D / 2 D / 2 D / 2 D lease see 1 1 / 2 D Ø x Ø Ø E / 2 E / 2 E / 2 E lease see 1 1 / 2 E Ø x Ø Ø / 2 F / 2 F / 2 F / 2 F lease see 1 1 / 2 F Ø x Ø Ø / 2 G / 2 G 3 2 G 3 2 G Ø Ø Ø Ø x 1 9 x 1 1 x 3 2 H 3 2 H 3 2 H Ø Ø Ø J 4 3 J 4 3 J Ø Ø Ø K 4 3 K 6 3 K Ø Ø Ø Ø x 1 9 x 1 1 x 1 4 L 6 4 L 6 4 L Ø Ø Ø M 6 4 M Ø Ø N 6 4 N Ø Ø Ø Ø Q ) 12 2) Ø R Ø ) Type 26 high pressure design: 122 2) Type 26 high pressure design: 1282 Support brackets Balanced design Type 26 17
8 Type 26 Type 26 Dimensions US units Safety valve dimensions [inch] Support brackets [inch] A B C D E A B C D E A B C D E Flange rating class 1 x 1 3L x 1 3 x 1 Valve size 1 D 2 1 D 2 1 D 2 d [inch].1 4 D 4 1 / / / / 16 lease see 1 D / / / / 16 A [inch 2 ] Ø 9 / 16 7 / 32 3 x 1 1 Ø 9 / 16 7 / 32 1 E 2 1 E 2 1 E 2 E d [inch] / / / / 16 lease see 1 E / / / / 16 A [inch 2 ] Ø 9 / x 1 1 Ø 9 / / 2 F / 2 F / 2 F 2 d [inch] / / / / F G A [inch 2 ] Ø 9 / Ø 9 / Ø / 2 G / 2 G / 2 G 3 d [inch] / / / / A [inch 2 ] Ø 9 / Ø 9 / Ø 9 / Flange rating class 1 x 1 3L x 1 3 x 1 Valve size 1 1 / 2 H / 2 H 3 2 H 3 d [inch] / / / / 4 H J K A [inch 2 ] Ø 9 / Ø 9 / / Ø 9 / J 3 2 J 3 3 J 4 d [inch] / / / / / / / / / / 16 A [inch 2 ] / Ø 9 / / / Ø 9 / / / 2 Ø K 4 3 K 4 3 K 4 WCB, LCB, d [inch] / lease see 3 K / CF8M (WC6) A [inch 2 ] / 2 Ø x / 2 Ø WC6 Flange rating class 1 x 1 3L x 1 3 x 1 Valve size 3 L 4 3 L 4 4 L 6 L M N Q R T d [inch] / / / / / / / / A [inch 2 ] / 2 Ø / 2 Ø / 16 6 / 16 Ø 23 1 / 16 4 M 6 4 M 6 4 M 6 d [inch] / lease see 4 M / A [inch 2 ] / 16 6 / 16 Ø / 4 3 x / 16 6 / 16 Ø / 4 4 N 6 4 N 6 4 N 6 d [inch] / / lease see 4 N / / A [inch 2 ] / 16 6 / 16 Ø x / 16 6 / 16 Ø d [inch] / / / 16 A [inch 2 ] / 16 6 / 16 Ø 23 1 / / 16 6 / 16 Ø 23 1 / / Ø / 16 6 Q 8 6 Q 8 6 Q 8 d [inch] / / / / 4 lease see 6 Q / / / / 4 A [inch 2 ] / Ø x / Ø R 8 6 R 8 6 R 1 d [inch] / / / / / / / / / / / A [inch 2 ] / Ø / Ø / 2 29 Ø T 1 8 T 1 8 T 1 d [inch] / / / 16 lease see 8 T / / / 16 A [inch 2 ] / 2 29 Ø / 16 3 x / 2 29 Ø / 16 18
9 d = Actual orifice diameter A = Actual orifice area A B C D E A B C D E A B C D E A B C D E 6 x 1 9 x 3 1 x 3 2 x 3 1 D / 2 D / 2 D / 2 D / / / / 16 lease see 1 1 / 2 D / / / / / / 16 1 Ø 9 / x Ø 9 / Ø 9 / E / 2 E / 2 E / 2 E / / / / 16 lease see 1 1 / 2 E / / / / / / 16 1 Ø 9 / x Ø 9 / Ø 9 / / 2 F / 2 F / 2 F / 2 F lease see 1 1 / 2 F / / / / 16 1 / / / / Ø 9 / x Ø 9 / Ø 9 / / 2 G / 2 G 3 2 G 3 2 G 3 Type / / / / / / / / / / Ø 9 / Ø / Ø 9 / / / Ø 9 / / 16 6 x 1 9 x 1 1 x 3 2 H 3 2 H 3 2 H / / / / / / / Ø 9 / / / Ø 9 / / / Ø 9 / / 16 3 J 4 3 J 4 3 J / / / / / / / / / / / / / 2 Ø / 2 Ø / 2 Ø K 4 3 K 6 3 K / / / / / / / / / / / 2 Ø / 16 6 / 16 Ø / 16 6 / 16 Ø / / / 2 Ø x 1 9 x 1 1 x 1 4 L 6 4 L 6 4 L / / / / / / / 4 2 / / 16 6 / 16 Ø / / 16 6 / 16 Ø / 16 6 / 16 Ø M 6 4 M / / / / / 16 6 / 16 Ø / / 16 6 / 16 Ø N 6 4 N / / / / / / / 16 6 / 16 Ø / 16 6 / 16 Ø / / / / / / / Ø / / Ø / 16 6 Q / / / ) 47 1 / 4 2) 14 9 / Ø R / / / / 2 29 Ø Support brackets Balanced design 1) Type 26 high pressure design: 47 / 16 2) Type 26 high pressure design: 1 / 2 19
10 Type 26 Type 26 Weigths Metric units Bonnet Lifting device Flange class 1 x 1 3L x 1 3 x 1 6 x 1 9 x 3 1 x 3 2 x 3 Valve size 1 D 2 1 D 2 1 D 2 1 D / 2 D / 2 D / 2 D 3 D E F G Weight [kg] [kg] all all 1 E 2 1 E 2 1 E 2 1 E / 2 E / 2 E / 2 E 3 Weight [kg] [kg] / 2 F / 2 F / 2 F / 2 F / 2 F / 2 F / 2 F 3 Weight [kg] [kg] / 2 G / 2 G / 2 G / 2 G / 2 G 3 2 G 3 2 G 3 Weight [kg] [kg] Flange class 1 x 1 3L x 1 3 x 1 6 x 1 9 x 1 1 x 3 Valve size 1 1 / 2 H / 2 H 3 2 H 3 2 H 3 2 H 3 2 H 3 H J K Weight [kg] [kg] J 3 2 J 3 3 J 4 3 J 4 3 J 4 3 J 4 Weight [kg] [kg] K 4 3 K 4 3 K 4 3 K 4 3 K 6 3 K 6 Other WC6 Weight [kg] [kg] Flange class 1 x 1 3L x 1 3 x 1 6 x 1 9 x 1 1 x 1 Valve size 3 L 4 3 L 4 4 L 6 4 L 6 4 L 6 4 L 6 L M N Q R T Weight [kg] [kg] M 6 4 M 6 4 M 6 4 M 6 4 M 6 Weight [kg] [kg] N 6 4 N 6 4 N 6 4 N 6 4 N 6 Weight [kg] [kg] Weight [kg] [kg] Q 8 6 Q 8 6 Q 8 6 Q 8 Weight [kg] [kg] R 8 6 R 8 6 R 1 6 R 1 Weight [kg] [kg] T 1 8 T 1 8 T 1 Weight [kg] [kg]
11 Type 26 Weigths US units Bonnet Lifting device Flange class 1 x 1 3L x 1 3 x 1 6 x 1 9 x 3 1 x 3 2 x 3 Valve size 1 D 2 1 D 2 1 D 2 1 D / 2 D / 2 D / 2 D 3 D E F G Weight [lbs] [lbs] all all 1 E 2 1 E 2 1 E 2 1 E / 2 E / 2 E / 2 E 3 Weight [lbs] [lbs] / 2 F / 2 F / 2 F / 2 F / 2 F / 2 F / 2 F 3 Weight [lbs] [lbs] / 2 G / 2 G / 2 G / 2 G / 2 G 3 2 G 3 2 G 3 Weight [lbs] [lbs] Flange class 1 x 1 3L x 1 3 x 1 6 x 1 9 x 1 1 x 3 Valve size 1 1 / 2 H / 2 H 3 2 H 3 2 H 3 2 H 3 2 H 3 H J K Weight [lbs] [lbs] J 3 2 J 3 3 J 4 3 J 4 3 J 4 3 J 4 Weight [lbs] [lbs] K 4 3 K 4 3 K 4 3 K 4 3 K 6 3 K 6 Other WC6 Weight [lbs] [lbs] Flange class 1 x 1 3L x 1 3 x 1 6 x 1 9 x 1 1 x 1 Valve size 3 L 4 3 L 4 4 L 6 4 L 6 4 L 6 4 L 6 L M N Q R T Weight [lbs] [lbs] M 6 4 M 6 4 M 6 4 M 6 4 M 6 Weight [lbs] [lbs] N 6 4 N 6 4 N 6 4 N 6 4 N 6 Weight [lbs] [lbs] Weight [lbs] [lbs] Q 8 6 Q 8 6 Q 8 6 Q 8 Weight [lbs] [lbs] R 8 6 R 8 6 R 1 6 R 1 Weight [lbs] [lbs] T 1 8 T 1 8 T 1 Weight [lbs] [lbs] Type 26 21
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