jordan Mark 630 Installation and operating instructions

3170 Wasson Road • Cincinnati, OH 45209 USA
Phone [phone] • Fax [phone]
[email protected] • www.jordanvalve.com
I & M Mark 630
Installation & Maintenance Instructions for
Mark 630 High Pressure Regulator
Warning: Jordan Valve Pressure Regulators must only be used, installed and repaired in accordance with these In-
stallation & Maintenance Instructions. Observe all applicable public and company codes and regulations. In the event
of leakage or other malfunction, call a qualied service person; continued operation may cause system failure or a
general hazard. Before servicing any valve, disconnect, shut off, or bypass all pressurized uid. Before disassembling
a valve, be sure to release all spring tension.
Note: This document is to be used in conjunction with
Mark 630 Series Cut Sheet.
WARNING! Over-pressure of this regulator or
installation of the regulator in applications which
may see pressure levels beyond those for which
the regulator is designed may result in leakage
and/or catastrophic failure. This failure could
result in leaking gas, damage to surrounding
equipment, personal injury or death. To prevent
such damage/injury the regulator should be in-
stalled in a safe location and should be chosen
based upon the user’s specic application.
It is highly recommended that suitable pressure relieving
devices, as recommended by appropriate codes or stan-
dards, be installed in your system to assure that maxi-
mum rated pressures are not exceeded.
Installation
The Mark 630 should be chosen based upon the 1.
maximum inlet pressures, pressure drops and out-
let pressures as described in Table 1 and 2. Flow
capacities are listed in Table 4. The operating tem-
perature range is -20°F to 150°F. When choosing
and installing a regulator one must ensure that the
conditions do not exceed these parameters. Fur-
thermore, large differentials in pressure across the
regulator may result in the formation of ice in the
orice area. The resulting decrease in orice area
may affect the regulators ability to ow in sufcient
volume for downstream demand. Therefore, large
pressure drop applications may require the use of
more than one regulator.
Make sure that line pressure has been eliminated 2.
prior to the installation of any regulator. Prior to
installation the line should be inspected to ensure
that there is no debris that might damage the regu-
lator. Install regulator with properly sized threaded
connections and utilizing thread sealant.
The regulator should be installed with the ow ar-3.
row on the side of the body in the correct orienta-
tion to ow - i.e. higher pressure upstream, lower
regulated pressure downstream. As is true with
most regulators, the Mark 630 has an outlet pres-
sure rating that is less than the inlet pressure rating.
Overpressure protection must be provided to avoid
over-pressure condition if the actual inlet pressure
can exceed the outlet pressure rating. Refer to Ta-
bles 1 and 2 for maximum inlet pressures, pressure
drops and outlet pressure ranges.
The regulator may be installed in any orientation 4.
as long as the ow is in proper agreement with
the ow arrow on the side of the body. However,
the regulator should be positioned such that the
screened breather (24) will not collect debris or
moisture.
Vent Line Option
The Mark 630 includes a vent or Breather (24) in the
Spring Housing (3). If there is concern about build-up
of gas in a conned location, the Breather may be re-
moved to allow installation of a remote vent line. With the
Breather removed, a vent line may be installed into the
¼” NPT port. This vent line should be as large a diameter
as possible and should utilize minimal bends and el-
bows. Furthermore, the vent line opening should be pro-
tected from weather or debris and should be checked
regularly for blockage.

(14) to hold the valve in an open condition. As the outlet
pressure exceeds the set pressure, the diaphragm, act-
ing upon the lower spring guide compresses the spring
allowing the lever assembly to close the valve until the
outlet pressure equalizes with the set pressure.
Maintenance
Routine maintenance should be expected due to normal
wear and tear, damage from external sources or debris.
The regulator components, especially the moving and
sealing parts, should be inspected periodically and re-
placed as necessary. Frequency of inspection/replace-
ment depends upon severity of conditions, but may also
be required by local/state/federal law or industry stan-
dards.
Large pressure drops or large amounts of particulate in
the ow will result in accelerated wear on the valve disc
assembly (21) and orice (20).
Replacing the Orice, Lever Assembly and Disk
Assembly
Disconnect piping form inlet adapter (18), removing 1.
adapter and four cap screws (17).
Remove orice (20) and inlet body gasket (19).2.
Remove vent piping if it is installed.3.
Remove two cap screws (8), which secure the dia-4.
phragm adapter (13) to the body (23). Remove the
diaphragm adapter and spring case (3) as a unit.
If the lever assembly is to be replaced, drive out 5.
the pin (15) and slide the lever assembly out of the
diaphragm adapter. When replacing the lever as-
sembly, make sure that the slot engages the con-
nector head assembly (12). Replace the pin.
Remove the valve carrier (22) from the body.6.
Use a ¾” socket to remove and reinstall the valve 7.
disc and holder.
Discard old inlet body gaskets and replace with 8.
new. Reinstall the valve carrier into the body.
Reinstall the diaphragm adapter/spring housing 9.
unit, making sure that the lever assembly properly
engages the valve carrier. Finally, tighten the two
cap screws that secure the diaphragm adapter/
spring housing unit to the body. IMPORTANT:
Spring case (3) must be oriented such that it points
away from the inlet adapter (18).
Reinstall the inlet adapter to the body, installing and 10.
tightening four cap screws.
Replacing the Diaphragm
Remove spring tension by loosening the jam nut (2) 1.
and turning the adjusting screw (1) counterclock-
wise until all spring compression is relieved.
Start-Up Operation
WARNING! Release downstream pressure to
prevent a potential over-pressure of the dia-
phragm. Failure to do so may result in property
damage and/or personal injury. Always employ
upstream and downstream pressure gauges to
monitor startup pressures.
With the regulator isolated with shutoff valves on both
the upstream and downstream sides, slowly open up-
stream valve followed by slowly opening the downstream
valve. Check all connections for leaks and make neces-
sary output adjustments by manipulating the adjusting
screw (1) per the adjustment procedures below.
Adjustment
The range of adjustment for a particular regulator is 1.
indicated on the nameplate. Different ranges can
be achieved by substituting a different spring (5).
IMPORTANT: If a new spring is installed the
nameplate must be remarked to indicate the
new pressure range.
Refer to Tables 1 & 2 prior to adjustment for pres-2.
sure and ow information, assuring that the chosen
spring will facilitate the desired pressure regulation
and that the maximum pressure output does not
exceed the downstream system pressure limits.
Loosen the jam nut (2).3.
To INCREASE pressure:4. Turn adjustment screw
clockwise.
To DECREASE pressure:5. Turn adjustment screw
counterclockwise.
Once the desired pressure is achieved, hold adjust-6.
ment screw while securing the jam nut.
Shutdown
WARNING! Downstream pressure must be re-
leased to prevent an over-pressurization of the
diaphragm. Failure to do so may result in prop-
erty damage and/or personal injury.
Close the upstream block valve followed by closing 1.
the downstream block valve.
Open the nearest vent valve between the regulator 2.
and the downstream block valve.
Operation
When the outlet pressure is lower than the set pres-
sure, force generated by the spring (5) upon the spring
guide (7) and diaphragm (11) causes the lever assembly
-2-

-3-
Disconnect vent line if installed.2.
Unscrew two cap screws (9) and four cap screws 3.
(10) with hex nuts (25).
Remove the spring housing (3).4.
Remove from the lever assembly, as a unit, the dia-5.
phragm (11), connector head assembly (12), lower
spring guide (7) and cap screw (6).
Unscrew the cap screw (6) from the connector 6.
head (12) and disassemble the diaphragm (11).
Install a new diaphragm, making sure that it is 7.
properly centered. Reassemble connector head
assembly and lower spring guide, securely tight-
ened with the cap screw.
Engage connector head in lever assembly.8.
Reinstall the spring housing with cap screws and 9.
nuts nger-tight only. Assure proper diaphragm
slack by slightly compressing the spring with the
adjusting screw (tighten by turning clockwise). Fi-
nally, complete the tightening of all cap screws and
nuts.
Table 1: Maximum Pressure and Pressure Drops
Port Diameter 1/8” 1/4” 3/8” 1/2”
Max. Allowable Inlet
Pressure, psig11500 1500 1000 750
Max. Allowable Pressure
Drop, psid 1500 1000 500 250
† The sum of the outlet pressure setting and the maximum allowable pressure
drop determines the maximum allowable inlet pressure for a given installation.
For example, with a 3/8” seat ring orice (maximum pressure drop of 500 psi)
and a 275 psig outlet pressure setting, the maximum inlet pressure is 775 psig
(500 psi + 275 psi + 775 psi).
Table 2: Outlet Pressure Ranges
Outlet Pressure
Range psig 27-50 46-95 90-150 150-200 200-275 275-500
Max Outlet
Pressure over
Pressure
Setting †, psig
200 200 ‡
Max Emergency
Outlet (Casing)
Pressure, psig
550
† Internal parts of the regulator may be damaged if the outlet pressure
exceeds the pressure setting beyond the amounts shown.
‡ This applies to outlet pressure settings below 350 psig only. For pressure
settings above 350 psig, outlet pressure is limited to 550 psig, the maximum
emergency outlet (casing) pressure.
Table 3: Wide-Open Flow Coefcients
Orice Size CgCvC1
1/8” 13.9 0.49 28.4
3/16” 31.3 1.11 28.2
1/4” 55.1 2.03 27.2
3/8” 122.5 4.61 26.6
1/2” 216.0 8.18 26.4
Table 4: High Pressure Regulator Flow Capacities (scfh of
0.6 Specic Gravity Gas; based on 20% Droop)
Outlet
Pressure
Range
psig
Inlet
Pressure
psig
Outlet
Pressure
psig
Seat Ring Orice Diameter (inches)
1/8 3/16 1/4 3/8 1/2
27-50
60
50
900 2000 3100 5200 8100
75 1300 28500 3800 7200 10000
100 1700 3500 5700 10500 13000
150 2600 5700 8700 13000 17000
200 3500 7800 11000 16000 19000
300 5300 10500 14000 20000 23000
400 6900 13000 17000 23000 ―
550 9600 16000 20000 26000 ―
600 9800 17000 21000 ― ―
1050 17000 23000 27000 ― ―
1500 19000 25000 ― ― ―
46-95
60
50
800 1500 2400 4300 6400
75 1200 2100 3100 5500 8000
100 1500 3100 4200 7500 10000
150 2400 4500 6700 11000 14000
200 3400 6600 9400 14000 17000
300 5200 8900 11000 16000 20000
400 6800 11000 15000 20000 ―
550 9500 13000 17000 23000 ―
600 9800 14000 19000 ― ―
1050 14000 19000 22000 ― ―
1500 18000 24000 ― ― ―
46-95
100
75
1700 3200 5000 8000 13000
125 2200 4300 6700 10000 15000
200 3500 7300 10000 16000 22000
250 4400 9400 1300 19000 24000
325 5700 11000 16000 23000 27000
400 7100 14000 19000 27000 ―
575 9700 18000 23000 30000 ―
600 9900 19000 25000 ― ―
1075 18000 27000 32000 ― ―
1500 23000 32000 ― ― ―
90-150
125
100
2000 3600 5500 9200 13000
150 2500 4600 6800 11000 16000
200 3600 6600 9400 13000 22000
250 4400 8500 11000 18000 26000
300 5300 9800 14000 21000 30000
350 6100 10000 16000 25000 32000
400 7000 13000 18000 27000 ―
600 9500 18000 23000 35000 ―
1100 19500 28000 35000 ― ―
1500 25000 35000 ― ― ―

Table 4: High Pressure Regulator Flow Capacities (scfh of
0.6 Specic Gravity Gas; based on 20% Droop) (cont’d)
Outlet
Pressure
Range
psig
Inlet
Pressure
psig
Outlet
Pressure
psig
Seat Ring Orice Diameter (inches)
1/8 3/16 1/4 3/8 1/2
90-150
150
125
2400 4600 6700 11000 17000
200 3500 6800 10000 15000 23000
250 4300 8900 12000 19000 29000
300 5200 10000 15000 25000 34000
375 6600 13000 18500 28000 39000
400 7300 14500 19000 29000 ―
500 7900 15000 25000 36000 ―
625 10000 22000 29000 41000 ―
1125 18000 33000 42000 ― ―
1500 26000 43000 ― ― ―
90-150
200
150
2400 6800 10000 16000 26000
250 4400 8800 13000 20000 32000
300 5300 10000 15000 24000 35000
400 7100 14000 22000 34000 42000
450 7700 17000 24000 36000 ―
650 9000 24000 33000 49000 ―
800 13000 29000 38000 ― ―
115 0 20000 38000 49000 ― ―
1500 26000 47000 ― ― ―
150-200
200
150
3400 6200 9300 16000 24000
250 4300 8800 12000 20000 27000
300 5300 10000 15000 24000 30000
400 7100 14000 21000 32000 38000
450 7600 15000 24000 36000 ―
650 9000 21000 33000 48000 ―
800 13000 27000 37000 ― ―
115 0 19500 34000 49000 ― ―
1500 26000 44000 ― ― ―
150-200
250
200
4200 8300 12000 20000 30000
300 5200 10000 16000 25000 35000
450 7800 16000 26000 43000 50000
600 9500 22000 34000 55000 ―
700 11000 25000 40000 61000 ―
800 13000 30000 43000 ― ―
1000 16000 37000 50000 ― ―
1200 20000 41000 59000 ― ―
1500 26000 53000 ― ― ―
200-275
250
200
4200 8200 11000 20000 29000
300 5200 10000 14500 25000 35000
450 7700 1600 24000 40000 50000
600 9500 22000 31000 51000 ―
700 11000 25000 35000 55000 ―
800 13000 29000 42000 ― ―
1000 16000 36000 50000 ― ―
1200 19000 41000 55000 ― ―
1500 26000 51000 ― ― ―
Table 4: High Pressure Regulator Flow Capacities (scfh of
0.6 Specic Gravity Gas; based on 20% Droop) (cont’d)
Outlet
Pressure
Range
psig
Inlet
Pressure
psig
Outlet
Pressure
psig
Seat Ring Orice Diameter (inches)
1/8 3/16 1/4 3/8 1/2
200-275
300
250
4900 9000 15000 28000 42000
400 7000 14000 23000 40000 56000
500 8500 18000 29000 51000 65000
600 9500 22000 34000 59000 ―
750 12500 28000 44000 69000 ―
1000 16000 39000 58000 ― ―
1250 21000 49000 69000 ― ―
1500 26000 59000 ― ― ―
200-275
300
275
4700 9000 15000 28000 39000
400 6900 14000 25000 40000 54000
525 8600 18000 35000 68000 94000
775 11000 28000 51000 95000 ―
1000 16000 39000 67000 ― ―
1275 21000 50000 87000 ― ―
1500 26000 60000 ― ― ―
275-500
300
275
4500 7500 10000 20000 31000
400 6600 12000 16600 31000 43000
525 8600 16000 21000 39000 56000
775 11000 24000 32000 55000 ―
1000 17000 32000 43000 ― ―
1275 21000 40000 53000 ― ―
1500 26000 46000 ― ― ―
275-500
400
300
6600 11000 16000 31000 42000
550 9700 18000 23000 44000 63000
600 9900 19000 26000 48000 ―
700 11000 23000 30000 54000 ―
800 13000 26000 35000 61000 ―
900 15000 29000 39000 ― ―
1300 22000 43000 58000 ― ―
1500 26000 49000 ― ― ―
275-500
500
400
8300 16000 24000 44000 62000
650 10000 24000 33000 61000 86000
800 13000 30000 41000 76000 ―
900 15000 34000 49000 85000 ―
1000 17000 38000 54000 ― ―
1200 20000 46000 63000 ― ―
1400 24000 55000 76000 ― ―
15000 26000 60000 ― ― ―
275-500
550
500
8700 16000 26000 50000 77000
750 12000 28000 40000 78000 100000
900 15000 34000 52000 92000 ―
1000 17000 39000 60000 100000 ―
1500 26000 59000 72000 ― ―
-4-

Illustration and Parts List
3170 Wasson Road • Cincinnati, OH 45209 USA
Phone [phone] • Fax [phone]
[email protected] • www.jordanvalve.com
Bulletin IM-MK630-0310
Item Description Qty. Item Description Qty.
1 Adjusting Screw 1 15 Pin 1
2 Jam Nut 1 16 Gasket 1
3 Spring Housing 1 17 Cap Screw 4
4 Upper Spring Guide 1 18 Inlet Adapter 1
5 Spring 1 19 Inlet Body Gasket 2
6 Cap Screw 1 20 Orice 1
7 Lower Spring Guide 1 21 Valve Disc Assembly 1
8 Cap Screw 2 22 Valve Carrier 1
9 Cap Screw 2 23 Body 1
10 Cap Screw 4 24 Breather 1
11 Diaphragm 1 25 Hex Nut 4
12 Connector Head Assembly 1 26 Name Plate 1
13 Diaphragm Adapter 1 27 Drive Screw 4
14 Lever Assembly 1 28 Plug 1
1
1
2
4
3
56
7
10
1125
12
13
14
15
16
17 18 19 20 21 22 23 24
8
9
26
27