Emerson MR98 Guia de Instalação descarregar pdf (Página 3)

MR98 Series

Figure 1.TypeMR98LAssembly

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GF04917

*Recommended Spare Part

1. Lubricants and sealants must be selected such that they meet the temperature requirements.

2. Apply L2 (anti-seize compound) on key 16 for Stainless Steel bolts.

3. Apply L4 (graphite sealant) instead of L1 (general purpose PTFE or lithium grease) on key 63 for graphite ring.

4. Only one metal diaphragm is needed for Types MR98L and MR98LD with 1/4 NPT body size and 0.14 to 0.48 bar / 2 to 7 psi spring range.

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Parts List

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1 Body

2 Spring Case

3* Orice

4* Valve Plug

5 Bottom Plug

7 Valve Plug Guide

8 Lower Spring Seat

9 Upper Spring Seat

10 Pusher Post

11 Control Spring

12* Diaphragm (2 required for metal, FKM and EPDM diaphragms)

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13 Nameplate

14 Diaphragm Protector (not shown)

15 Adjusting Screw

16 Cap Screws

Types MR98L and MR98LD

1/4 NPT; DN 15 / 1/2-inch bodies - 10 required

DN 20 and 25 / 3/4 and 1-inch bodies - 12 required

Types MR98H, MR98HD, MR98HH and MR98HHD

1/4 NPT body - 6 required

DN 15 to 50 / 1/2 to 2-inch bodies - 8 required

17 Jam Nut

18 Drive Screw (4 required)

19* Diaphragm Gasket (2 required for pressure loaded spring case)

21 Diaphragm Head

22 Adjusting Screw Assembly

23 Handwheel (not shown)

24 Machine Screw

25 O-ring Retainer

25 Seat Retainer

28 Lockwasher

29* Gasket

31 Locknut

32 Stufng Box

33 Adjusting Screw

34 Packing Follower

35 Stufng Box Nut

36 Packing V-Ring (3 required)

37* Stuff Box Gasket

38 Handwheel / Handle

39 Internal Adaptor

40 External Adaptor

41 Machine Screw

41 Jam Nut

42 Spring

43 Washer

44 Washer

45* O-ring

47 NACE Tag (not shown)

48 Tag Wire (not shown)

49 Lockwasher (not shown)

50* Sealing Washer

51 Vent (not shown)

52 Plug

53* Valve Plug O-ring

57 Jam Nut (not shown)

58 Washer

59* O-ring

59* L-ring

62 Adaptor (not shown)

63* Bottom Plug Seal

64 Flow Arrow

65 Pipe Plug (not shown)

66 Pressure Gauge (not shown)

68 Restriction (not shown)

69 ATEX Tag (not shown)

70 PED Tag (not shown)

5L2

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COMPOSITE SEAT OPTION

SEALED ADJUSTING

SCREW OPTION

TEE-HANDLE

OPTION

CONTROL LINE OPTION

METAL DIAPHRAGM OPTION

1 2 3 4

MR98 Series 1

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