API - Leser

Accessories and OptionsHeating jacketApplication and designSafety valves in systems which need to be protected frommedia that are viscous, sticky, or have the tendency tocrystallize out of solution can be fitted with a heating jacket.The heating jacket is constructed with a welded designand covers the body, allowing heating medias (steam, heattransfer oil, etc.) to pass through the space created.To protect the spindle and the moving parts againststicking LESER recommends the use of a heating jacketin combination with the balanced bellows design.For safety valves with balanced bellows, the bonnet spacerrequired to house the bellows is fitted with an additionalheating jacket. Both heating jackets are joined by a tubing.If there is no risk of solidification of the media at the outlet asafety valve without balanced bellows can be used as well.The position of the heating connections is shown in figure 1 to 3.Specifications of the Heating JacketThe operating data for the heating jacket are shownon a separate name plate.Slip on flangesFlanged heating connections are suppliedas slip on flanges for better alignment ofthe flange connection.DNGDNDGADNADNBBCCEE1. Heating jacket for balanced bellowsdesign2. Heating jacket with couplings3. Heating jacket with slip on flangesMaterialsHeating jacketValve size 1 D 2 1 1 / 2 F 2 2 H 3 3 J 4 4 N 6 6 Q 8 8 T 101 E 2 1 1 / 2 G 3 2 J 3 3 K 4 4 P 6 6 R 83 K 63 L 4Body Series 526 CF8M1.4408CF8M1.4408CF8M1.4408WCB 1.0619, WCB 1.0619, WCB 1.0619, WCB 1.0619,CF8M 1.4408 CF8M 1.4408 CF8M 1.4408 CF8M 1.4408OptionsHeating jacket 1.4541ConnectionsSlip on flangeDINSlip on flangeANSI B16.5CouplingsDIN 2986DN 15, PN 25 1.4571, 1.4404316Ti, 316LDN 25, PN 25 1.4571, 1.4404316Ti, 316L1 / 2 ", class 1501", class 1501.4404316L1.4404316LG 3 / 81.4571316TiG 3 / 41.4571316TiBonnet spacer 1.4404316L321Option CodeH31 H31 H31 – – – –– – – H32 H32 H32 H32K31 K31 K31 – – – –– – – K32 K32 K32 K32H29 H29 H29 – – – –– – – H30 H30 H30 H30H33 H33 H33 H33 H33 H33 –99/16 LWN 480.01-E