Bettis Manual: 2"" ANSI 600 Multiport Flow Selector Valve Service Manual | Bettis Manuals & Guides

Bettis Canada Ltd.
4112 91A Street
Edmonton, Alberta, Canada T6E 5V2
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SERVICE MANUAL No. I-0051

MULTIPORT SELECTOR VALVE

CUSTOMER:

P.O.#:

W.O.#:

TAG:

DATE:

Edmonton

2" ANSI 600

APPLIES TO OPERATOR MODEL:

DESCRIPTION DWG.NO PAGE

I INTRODUCTION ......................................................... 2

II VALVE SPECIFICATIONS ................................................. 2

III VALVE ASSEMBLY ....................................................... 3

IV VALVE DISASSEMBLY .................................................... 5

TYPICAL VALVE ASSEMBLY DRAWING ....................... AB0272 ....... 6

VALVE DETAIL DRAWING .................................. C-0114 ........ 7

V ACTUATOR ASSEMBLY................................................... 8

VI CAM ADJUSTING ........................................................ 9

SWITCHPAK ASSEMBLY DRAWING .......................... IB0048-08 ..... 12

ELECTRICAL ASSEMBLY DRAWING ......................... IB0163 ........ 13

VII VALVE INSTALLATION.................................................... 14

VIII VALVE MAINTENANCE ................................................... 14

IX TROUBLESHOOTING..................................................... 15

TYPICAL WIRING DIAGRAM ................................ SB0704-X01 .... 16

X NOTES ............................................................. 17

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REV2:JUL-31-97

I INTRODUCTION

As many as eight flow lines can be manifolded through one Bettis Multiport Selector Valve.
The valve allows diversion of an individual flow-line to a test outlet for testing or sampling, while
combining the flow of the other seven into a separate group outlet.

II VALVE SPECIFICATIONS

RATING CONNECTION WEIGH

T

BODY

MATERIAL

DUCTILE

IRON

CAST

STEEL

TRIM MAXIMUM

WORKING

PRESSUR

E

PSIG

STD. 1000 200

HIGH TEMP 1440 260

STD. 1000 200

HIGH TEMP 1440 260

WORKING

TEMP

bC

EIGHT

FLOWLIN

E

INLET

PORTS

2 NPT 2 NPT 4 NPT 140

Cv = 67 FOR TEST OUTLET FLOW

Cv = 164 FOR GROUP OUTLET FLOW

SHELL HYDROSTATIC TEST PRESSURE = 2000 PSIG (13780 kPa)

STANDARD TRIM
MAXIMUM DIFFERENTIAL: TEST - GROUP = 120 PSIG (825 kPa)

MAXIMUM DIFFERENTIAL: GROUP - TEST = 80 PSIG (550 kPa)

ONE

TEST

OUTLET

PORT

ONE

GROUP

OUTLE

T

PORT

VALVE

lbs.

HIGH TEMPERATURE TRIM
MAXIMUM DIFFERENTIAL: TEST - GROUP = 200 PSIG (1375 kPa)

MAXIMUM DIFFERENTIAL: GROUP- TEST = 120 PSIG (825 kPa)

INTERMITTENT SEAL EXPOSURE AT 285bC FOR 15 MINUTES WITH A MAXIMUM BODY
PRESSURE OF 1100 PSIG AND MAXIMUM DIFFERENTIAL.

ACTUATOR SPECIFICATIONS

PLUG POSITION TOLERANCE: ±2b

TORQUE @ MAXIMUM DIFFERENTIAL SHOULD BE BETWEEN 35 AND 50 ft.lbs.

ACTUATOR SPEED: 1.4 RPM

ACTUATOR WEIGHT: 50 lbs.

POSITION ACCURACY: ±1b

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III VALVE ASSEMBLY

Refer to typical valve assembly drawing on page 6, and valve detail drawing on page 7.

Ensure all the parts are clean and in good condition before assembling the Multiport Selector
Valve. Use Esso Valve Grease No. 1, or a suitable equivalent, to lubricate the components.

A. BODY: (10)

1. Visually inspect internal and external surfaces and threads.

2. Install the teflon / 25% carbon bushing (20).

B. PLUG: (30)

1. Lubricate and install the lower plug o-ring (32) with the teflon backup ring (36) "above" the
o-ring.

2. Lubricate and install the seal adjusting nut (38) with five wave springs (40) followed by the
wave spring backup (43). Make sure these springs are placed properly on the step of the
adjusting nut behind the plug seal. If these springs are not in the proper place, it is
impossible to get the plug seal (42) to hold pressure.

3. Lubricate and place the o-ring (48) and two teflon backup rings (52) in the plug seal groove,
then install the plug seal (42).

NOTE: Push seal in by hand only.

4. Install the circular scraper (54) with two wave springs (58).

NOTE: Apply a small amount of grease to the springs so they can stay in place during

assembly. Make sure the scraper fits freely in the plug bore. To check, push in
at both sides by hand, then let go and see if the scraper returns to its original
position.

5. Place the plug (30) in the body making sure that the plug seal and scraper are flush with the
plug bore (or has enough clearance between the scraper and the body bore to prevent
contact).

6. Install and grease the bearing cone (60).

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C. BONNET: (62)

1. Lubricate and install the bearing cup (60) inside the bonnet.

2. Lubricate and install the o-ring (66) with the teflon backup ring (70) "above" the o-ring in the
inner groove.

3. Lubricate and install the o-ring (74) in the outer groove.

4. Install the wiper (72) and the grease nipple (78)

NOTE: Grease to flush and fill passage at this time.

5. Set the bonnet in place with the actuator mounting holes straddling centreline of the "group
outlet" port, ensuring that the bonnet is placed flat on top of the valve body to prevent
damage to the
o-ring (66). Place bonnet such that the 1/2 NPT vent plug (68) is located over the group
outlet.

NOTE: Push bonnet down only by hand or rubber mallet.

6. Install studs (80) with anti-seize lubricant C5-A high-temp copper compound, or a suitable
equivalent.

7. Tighten two of eight bonnet nuts (82) at 180b interval, then ensure that the plug (30) rotates
freely through a complete revolution.

8. Tighten the remaining nuts after confirming that the bonnet (62) and plug (30) have been
centered. Torque the nuts to 100 ft.lbs.

9. Adjust the plug seal (42), by first aligning the plug (30) with an open (ie. home test) port,
then turn the adjusting nut (38) counter clockwise, viewing towards the valve centerline, with
adjusting tool until the scraper (54) just touches the inside wall surface.

10. Rotate plug (30) at least one revolution and check for binding or excessive turning torque
(ie. it should be 3 to 4 ft. lbs), then tighten the adjusting nut (30) with the supplied adjusting
tool counter clockwise, viewing towards the valve centerline, to 35 ft.lbs. of torque.

NOTE: Do not overtighten the adjusting nut (38).

11. Turn the plug (30) at least one revolution and check for smooth movement. If plug seal (42)
is binding at each port (30) when plug (30) is rotating, that means either the plug seal or the
wave springs (40) are not in the proper position. See disassembly procedure below if
required.

12. Install vent plug (68) in the bonnet port.

13. Perform any required leakage test(s).

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IV VALVE DISASSEMBLY

Refer to typical valve assembly drawing on page 6.

1. Release the pressure to zero before proceeding.

2. Remove plug or fitting from port for access and turn the seal adjusting nut (38) clockwise to
release load on plug seal (42) and scraper (54) to clear body bore.

3. Remove the eight bonnet nuts (82) and studs (80). Remove the bonnet (62) with a straight
lift along the axis.

NOTE: Bonnet has two 1/2NC tapped holes that can be used for lifting.

4. Remove the plug (30) from the valve body (10).

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