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Industrial Product Guide - Nabic

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BUTTERFLY VALVES<br />

PN16<br />

Fig. 970<br />

Fully-lugged Wafer Pattern<br />

970, 970G<br />

FEATURES & BENEFITS<br />

• Available up to DN600<br />

• Valve body fully-lugged<br />

• Long neck for insulation<br />

• Maintenance free<br />

• Good control characteristics<br />

MATERIAL SPECIFICATION<br />

Component Material Specification<br />

BS EN<br />

ASTM<br />

Body Ductile Iron 1563 EN-JS1040 A536 65-45-12<br />

Shaft Stainless Steel 10088-1 X5GNi18-10 A276 TYPE 410<br />

Disc Aluminium Bronze 1982 CC333G B148-C95300<br />

Bushes PTFE - -<br />

(up to 100mm)<br />

125mm Bronze - -<br />

and above (lubricated)<br />

O-Ring Buna N - -<br />

Liner EPDM - -<br />

PRESSURE/<br />

TEMPERATURE RATING<br />

PN16 from -10 up to 130ºC<br />

TEST PRESSURES<br />

Hydrostatic<br />

Body: 24 bar<br />

Seat: 17.6 bar<br />

SPECIFICATION<br />

Conforms to BS EN 593:2009.<br />

Fully-lugged.<br />

Lever or gearbox.<br />

Valves DN250 and larger supplied as standard<br />

with fully enclosed gear operator.<br />

Valves may be used for flow regulation.<br />

Fig 970 and 970G are suitable for Group 1 and<br />

2 gases and Group 1 and 2 liquids as defined<br />

by the Pressure Equipment Directive 97/23/EC.<br />

DIMENSIONAL DRAWINGS<br />

J<br />

G<br />

F<br />

K<br />

A<br />

H<br />

D<br />

DIMENSIONS & WEIGHTS<br />

Nom<br />

Size mm 50 65 80 100 125 150 200 250 300 350 400 450 500 600<br />

A mm 43 46 46 52 56 56 60 68 78 78 102 114 127 154<br />

D mm 165 185 200 220 250 285 340 405 460 520 580 640 715 840<br />

F mm 264 272 279 301 314 345 369 - - - - - - -<br />

G mm 250 250 250 250 250 315 315 - - - - - - -<br />

H mm 182 190 197 219 232 254 278 281 306 354 408 433 458 557<br />

J mm 123 123 123 123 123 123 123 228 228 228 305 305 305 305<br />

K mm 125 125 125 125 125 125 125 300 300 300 400 400 400 400<br />

Shaft size A/F mm 10 10 10 12 12 16 16 24 24 24 30 30 30 30<br />

Weight lever kg 4.6 5.4 7.2 8.8 12 14 20 - - - - - - -<br />

Weight geared kg 5.4 6.2 8.0 9.6 12 15 21 33 45 55 91 111 136 225<br />

Pressure bar<br />

18<br />

16<br />

14<br />

12<br />

10<br />

8<br />

6<br />

4<br />

2<br />

0<br />

0 20 40 60 80 100 120 140<br />

T emperature ˚ C<br />

Every effort has been made to ensure that the information contained in this publication is accurate at the time of publishing. Hattersley Ltd assumes no responsibility<br />

or liability for typographical errors or omissions or for any misinterpretation of the information within the publication and reserves the right to change without notice.<br />

10<br />

Technical Helpline: 0845 604 1790<br />

E: tech-enquiries@hattersley.com W: www.hattersley.com

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