Product Handbook 2026 - Volume 1

Control systems Safety valves

4

Materials (continued)

27 29

28

24

25

20

21

19

20 22 23

4.7 3

No.

Part

Material

19

Stem

304 St. St.

20

Spring Washer

Carbon Steel

up to 232ºC / 450°F Carbon Steel 233°C to 343ºC / 451°F to 650°F High Temperature Alloy Steel

21

Spring

22

Bonnet

SA 395 Gr. 60-40-18

23

Hex Nut (Body)

SA 194 Gr. 2H

24 25 27 28 29

Spring Adjusting Screw

304 St. St.

Adjusting Screw Locknut

304 St. St.

Stem Test Nut

Carbon Steel

Cotter Pin

Carbon Steel

Cap

Cast Iron

Materials continued on next page

**Other materials under request**

TI-P709-01 CTLS Issue 1

Page 3 of 13

SV47H SG Iron Safety Valve

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