Fisher MR95L User manual
D103587X014
Installation Guide
English – July 2014 MR95 Series
www.fisherregulators.com
Introduction
This Installation Guide provides instructions for installation, startup
and adjustment. To receive a copy of the Instruction Manual, contact
your local Sales Ofce or view a copy at www.fisherregulators.com.
For further information refer to MR95 Series Industrial Pressure
Regulators Instruction Manual, D103587X012.
P.E.D. Category
This product may be used as a safety accessory with pressure
equipment in the following Pressure Equipment Directive 97/23/EC
categories. It may also be used outside of the Pressure Equipment
Directive using Sound Engineering Practice (SEP) per table below.
Monel® is a mark owned by Special Metals Corporation.
Hastelloy® C is a mark owned by Haynes International, Inc.
1. The pressure/temperature limits in this Installation Guide and any applicable standard or code limitation should not be exceeded.
2. The pressure limits given are based on the body size and body materials only. Actual pressure limits of the assembled regulator may decrease and vary depending on the
temperature, body end connection, diaphragm, seat and/or trim material of the regulator.
3. Fluorocarbon (FKM) is limited to 93°C / 200°F hot water.
Temperature Capabilities(1)
Diaphragm and Seat Materials:
Nitrile (NBR) and Neoprene (CR): -40 to 82°C / -40 to 180°F
Fluorocarbon (FKM)(3):-18 to 149°C / 0 to 300°F
Ethylenepropylene (EPDM): -7 to 135°C / 20 to 275°F
Peruoroelastomer(FFKM): -18 to 218°C / 0 to 425°F
Polytetrauoroethylene(PTFE): -40 to 204°C / -40 to 400°F
StainlessSteel(SST): -40 to 343°C / -40 to 650°F
Body Materials:
GrayCastIron: -29 to 208°C / -20 to 406°F
WCC Steel: -29 to 343°C / -20 to 650°F
LCC Steel: -40 to 343°C / -40 to 650°F
StainlessSteel,Monel®andHastelloy®C:
-40 to 288°C / -40 to 550°F
Aluminum-Bronze: -40 to 260°C / -40 to 500°F
Pressure Registration
Internal or External
Metal Seats: Class IV
Class IV
Elastomer Seats: Class VI or better
Installation
!
a regulator. Regulators should be installed,
operated and maintained in accordance
with international and applicable codes and
regulations and Emerson Process Management
Regulator Technologies, Inc. instructions.
immediately may create a hazardous condition.
containing parts may result if this regulator
exceed any ratings of the adjacent piping or
piping connections.
(as required by the appropriate code, regulation
exceeding limits.
could result in personal injury and property
injury and damage, install the regulator in a
safe location.
Clean out all pipelines before installation of the regulator and
check to be sure the regulator has not been damaged or has
collected foreign material during shipping. For NPT bodies,
apply pipe compound to the external pipe threads. For anged
bodies, use suitable line gaskets and approved piping and bolting
practices. Install the regulator in any position desired, unless
otherwise specied, but be sure ow through the body is in the
direction indicated by the arrow on the body.
TYPE PRODUCT SIZE
MR95L/
MR95LD
1/4 NPT, DN 15 to 25 /
1/2 to 1-inch All SEP
MR95H/
MR95HD
1/4 NPT, DN 15 to 25 /
1/2 to 1-inch All SEP
DN 40 and 50 /
1-1/2 and 2-inch
Cast Iron I
Steel and
Stainless Steel II
MR95HP/
MR95HT
1/4 NPT, DN 15 to 25 /
1/2 to 1-inch All SEP
DN 40 and 50 /
1-1/2 and 2-inch
Steel and
Stainless Steel II
Low pressure regulator for 0.14 to 2.1 bar /
2 to 30 psig outlet pressures
Type MR95H: High pressure regulator for 0.34 to 10.3 bar /
5 to 150 psig outlet pressures
Type MR95HP: High pressure regulator for 1.0 to 27.6 bar /
15 to 400 psig outlet pressures (soft-seated)
Type MR95HT: High pressure/high temperature regulator for
1.0 to 20.7 bar / 15 to 300 psig outlet pressures (metal seat)
and up to 343°C / 650°F
Low pressure differential regulator for
0.14 to 2.1 bar / 2 to 30 psi differential pressures with
handwheel and packing box
Type MR95HD: High pressure differential regulator for
0.34 to 10.3 bar / 5 to 150 psi differential pressures with
handwheel and packing box
7.22 mm / 0.284-inch orice
10.56 mm / 0.416-inch orice
16.02 mm / 0.631-inch orice
29 mm / 1.142-inch orice
End Connection Styles
NPT, SWE and Welded and Integral CL150 RF,
CL300 RF, CL600 RF and PN 16/25/40 RF; all sizes are
fabricated with slip-on anges (for welded end connections)
and are EN anged 356-mm face-to-face (14-inch face-to-face)
See Table 2
Outlet and Differential Pressure Ranges(1)
See Table 1
2
MR95 Series
Table 1. OutletandDifferentialPressureRanges
It is important that the regulator be installed
installations, the regulator should be located
so that water, ice and other foreign materials
The recommended pressure limitations are stamped on the
regulator nameplate. Some type of overpressure protection
is needed if the actual inlet pressure exceeds the maximum
operating outlet pressure rating. Overpressure protection should
also be provided if the regulator inlet pressure is greater than the
safe working pressure of the downstream equipment.
Regulator operation below the maximum pressure limitations does
not preclude the possibility of damage from external sources or
debris in the line. The regulator should be inspected for damage
after any overpressure condition.
Startup
The regulator is factory set at approximately the midpoint of the
spring range or the pressure requested, so an initial adjustment
may be required to give the desired results. With proper
installation completed and relief valves properly adjusted, slowly
open the upstream and downstream shutoff valves.
To change the outlet pressure, loosen the jam nut and turn
the adjusting screw clockwise to increase outlet pressure or
counterclockwise to decrease it. Monitor the outlet pressure
with a test gauge during the adjustment. Tighten the jam nut to
maintain the desired setting.
!
release of pressure, isolate the regulator from all
pressure before attempting disassembly.
TYPE BODY SIZE (1)
Inch bar
MR95L and MR95LD 15, 20 and 25 1/4 NPT, 1/2, 3/4 and 1
0.14 to 0.41 2 to 6
0.34 to 1.0 5 to 15
0.90 to 2.1 13 to 30
MR95H and MR95HD
15, 20 and 25 1/4 NPT, 1/2, 3/4 and 1
1.0 to 2.1 15 to 30
1.7 to 5.2 25 to 75
4.8 to 10.3 70 to 150
40 and 50 1-1/2 and 2
0.34 to 5.5 5 to 80
4.1 to 8.3 60 to 120
6.9 to 9.7 100 to 140
8.3 to 10.3 120 to 150
MR95HT
15, 20 and 25 1/4 NPT, 1/2, 3/4 and 1 1.0 to 6.9 15 to 100
5.5 to 20.7 80 to 300
40 and 50 1-1/2 and 2 1.0 to 6.9 15 to 100
4.1 to 17.9 60 to 260
MR95HP
15, 20 and 25 1/4 NPT, 1/2, 3/4 and 1 1.0 to 6.9 15 to 100
5.5 to 27.6 80 to 400
40 and 50 1-1/2 and 2 1.0 to 6.9 15 to 100
4.1 to 20.7 60 to 300
1. For Types MR95LD and MR95HD regulators, the pressure ranges indicate the differential pressure that can be obtained with the indicated spring. The differential pressure (spring
setting) is added to the spring case loading pressure to determine the actual outlet pressure.
Table 2. MaximumColdWorkingPressuresofBodySizeandMaterial(1)(2)
TYPE BODY SIZE
PRESSURE
PRESSURE
PRESSURE
bar psig bar psig bar psig
MR95L/
MR95LD All available sizes
Gray Cast Iron 17.2 250 3.4 50 3.4 50
WCC/LCC Steel; CF8M/CF3M Stainless Steel;
Monel®(3);Hastelloy® C(3) 20.7 300 8.6 125 8.6 125
MR95H/
MR95HD All available sizes
Gray Cast Iron 17.2 250 17.2 250 17.2 250
WCC/LCC Steel; CF8M/CF3M Stainless Steel;
Monel®(3); Hastelloy® C(3); Aluminum-Bronze(3) 20.7 300 20.7 300 20.7 300
MR95HP All available sizes
WCC/LCC Steel 68.9 1000 41.4 600 20.7 300
CF8M/CF3M Stainless Steel; Monel®(3);
Hastelloy® C(3); Aluminum-Bronze(3) 68.9 1000 37.9 550 20.7 300
MR95HT
1/4 NPT and
DN 15 to 25 /
1/2 to 1-inch
WCC/LCC Steel 41.4 600 41.4 600 20.7 300
CF8M/CF3M Stainless Steel; Monel®(3);
Hastelloy® C(3); Aluminum-Bronze(3) 41.4 600 37.9 550 20.7 300
DN 40 and 50 /
1-1/2 and 2-inch
WCC/LCC Steel; CF8M/CF3M Stainless Steel;
Monel®; Hastelloy® C; Aluminum-Bronze 41.4 600 31.0 450 20.7 300
1. The pressure/temperature limits in this Installation Guide and any applicable standard or code limitation should not be exceeded.
2. The pressure limits given are based on the body size and body materials only. Actual pressure limits of the assembled regulator may decrease and vary depending on the
temperature, body end connection, diaphragm, seat and/or trim material of the regulator.
3. Not available for 1/4 NPT body size.
Monel® is a mark owned by Special Metals Corporation.
Hastelloy® C is a mark owned by Haynes International, Inc.
3
MR95 Series
Figure 1.TypeMR95L,1/4NPTandDN15to25/
1/2to1-inchBodySizesAssembly
(1):
GF04915
*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 MR95L and MR95LD with 1/4 NPT body size and 0.14 to 0.41 bar / 2 to 6 psi spring range.
1 Body
2 Spring Case
3* Orice
4* Valve Plug, Metal seat
4* Disk Holder Assembly, Composition seat
4a Disk Holder
4b Disk
4c O-ring (not shown)
5 Valve Plug Guide
6 Stem/Stem Assembly
6a Stem
6b Pusher Plate
6b O-ring
6c O-ring
7 Stem Guide Bushing
8 Lower Spring Seat
9 Upper Spring Seat
10 Pusher Post, (not shown)
11 Control Spring
12* Diaphragm (2 required for metal, FKM and EPDM diaphragms)(4)
13 Nameplate
14* Diaphragm Protector (not shown)
15 Adjusting Screw
16 Cap Screw
Types MR95L and MR95LD
DN 15 / 1/4 NPT and 1/2-inch bodies - 10 required
DN 20 and 25 / 3/4 and 1-inch bodies - 12 required
Types MR95H and MR95HD
1/4 NPT Body - 6 required
DN 15 to 50 / 1/2 to 2-inch bodies - 8 required
Types MR95HP and MR95HT
1/4 NPT Body - 6 required
DN 15 to 50 / 1/2 to 2-inch bodies - 8 required
17 Jam Nut
18 Nameplate Drive Screw (4 required)
19* Diaphragm Gasket (2 required for pressure loaded spring case)
20 Pitot Tube (for constructions without control line)
21 Diaphragm Head Assembly (not shown)
21a Diaphragm Head
21b Lower Spring Seat
21c Screw
21 Diaphragm Head (2 required) (not shown)
(1):
GF04918
Figure 2.TypeMR95HD,1/4NPTandDN15to50/
1/2to2-inchBodySizesAssembly
CONTROL LINE OPTION
METAL DIAPHRAGM OPTION
6B
52
6C
6A
12
18
18
13
64
19
L1
SEALED ADJUSTING
SCREW OPTION
TEE-HANDLE OPTION
COMPOSITE SEAT OPTION
50
22
4B
4A
L2
17
12
1
20
6
9 L2
15
2
11
16
7
4
26
63
L2
L2(2)
L1
L4
21C
21A
21B
T
3L2
5L2
OR(3)
L2
L2
L1
19
41
33
L3 36
L1 37
11
2
16
7
4
26
63
L2
L1
L4
3
L2
5
43
32
38
44
35
34
39
40
42
9
8
12
1
20
6
12
52
6C
6A
6B
4B
4A
OR(3)
L2(2)
METAL DIAPHRAGM OPTION
CONTROL LINE OPTIONCOMPOSITION SEAT OPTION
MR95 Series
©Emerson Process Management Regulator Technologies, Inc., 2014; All Rights Reserved
The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher is a mark owned by Fisher Controls International LLC,
a business of Emerson Process Management.
Thecontentsofthispublicationarepresentedforinformationalpurposesonly,andwhileeveryefforthasbeenmadetoensuretheiraccuracy,theyarenottobeconstruedaswarranties
orguarantees,expressorimplied,regardingtheproductsorservicesdescribedhereinortheiruseorapplicability.Wereservetherighttomodifyorimprovethedesignsorspecifications
ofsuchproductsatanytimewithoutnotice.
Emerson Process Management Regulator Technologies, Inc. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use
and maintenance of any Emerson Process Management Regulator Technologies, Inc. product remains solely with the purchaser.
Industrial Regulators
Emerson Process Management
Regulator Technologies, Inc.
USA - Headquarters
McKinney, Texas 75070 USA
Tel: +1 800 558 5853
Outside U.S. +1 972 548 3574
Asia-Paci c
Shanghai 201206, China
Tel: +86 21 2892 9000
Europe
Bologna 40013, Italy
Tel: +39 051 419 0611
Middle East and Africa
Dubai, United Arab Emirates
Tel: +971 4811 8100
Emerson Process Management
Regulator Technologies, Inc.
USA - Headquarters
McKinney, Texas 75070 USA
Tel: +1 800 558 5853
Outside U.S. +1 972 548 3574
Asia-Paci c
Singapore 128461, Singapore
Tel: +65 6770 8337
Europe
Bologna 40013, Italy
Tel: +39 051 419 0611
Chartres 28008, France
Tel: +33 2 37 33 47 00
Middle East and Africa
Dubai, United Arab Emirates
Tel: +971 4811 8100
TESCOM
Emerson Process Management
Tescom Corporation
USA - Headquarters
Elk River, Minnesota 55330-2445, USA
Tels: +1 763 241 3238
+1 800 447 1250
Europe
Selmsdorf 23923, Germany
Tel: +49 38823 31 287
Asia-Paci c
Shanghai 201206, China
Tel: +86 21 2892 9499
For further information visit www.fisherregulators.com
The distinctive diamond shape cast into every spring
case uniquely identifies the regulator as part of the
Fisher® brand and assures you of the highest-quality
engineering, durability, performance, and support.
22 Adjusting Screw Assembly (Tee Handle Adjustment)
23 Handwheel (not shown)
26 Inner Valve Spring
27 Inner Valve Base (not shown)
27 Inner Valve Base Assembly (not shown)
29* Gasket (2 required) (not shown)
31 Locknut (not shown)
32 Stuf ng Box
33 Adjusting Screw
34 Packing Follower
35 Stuf ng Box Nut
36 Packing (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 (2 required for Type MR95HD only) (not shown)
47 NACE Tag (not shown)
48 Tag Wire (not shown)
49 Lockwasher (not shown)
50* Sealing Washer
51 Vent, Type Y602-12 (not shown)
62 Adaptor (Types MR95L and MR95LD:
2 gauges - 2 required; 1 gauge - 1 required) (not shown)
63* Bottom Plug Seal
64 Flow Arrow
65 Pipe Plug (not shown)
66 Inlet Pressure Gauge (not shown)
67 Outlet Pressure Gauge (not shown)
69 ATEX Tag (not shown)
70 PED Tag (not shown)
*Recommended Spare Part
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