Emerson ENARDO 860 Series Скачать руководство пользователя страница 6 | Manualshive

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Emerson ENARDO 860 Series Скачать руководство пользователя страница 6

6

860 and 960 Series

North America

Only

Installing Pressure/Vacuum Relief Valves

with Weight-loaded Pallets

Note

The following steps 1 to 7 apply only

to valves that have a weight-loaded

vacuum or pressure pallet. These

steps do not apply to pallets that are

spring-loaded on both the pressure and

vacuum sides.

1. If the valve has a weight-loaded vacuum, loosen

fasteners on top of the valve and remove the lid,

hood or guide.

2. Remove valve pallets from the unit.

3. Separate the protective cardboard coverings from

the pallets. Be careful not to damage the pallet

seal surface.

4. Reinsert uncovered valve pallets back into the

unit. Make sure the lower stem on the pallet is

centered into the valve seat. If the pallet appears

to be off center to the valve chamber, or if there

is difficulty positioning the lid or guide, carefully

inspect the pallet to ensure it is inserted properly.

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Содержание ENARDO 860 Series

Страница 1: ...tions and Emerson Process Management Regulator Technologies Tulsa LLC Emerson instructions Failure to correct trouble could result in a hazardous condition Call a qualified service person to service the unit Installation operation and maintenance procedures performed by unqualified person may result in improper adjustment and unsafe operation Either condition may result in equipment damage or pers...

Страница 2: ...eat Material 1 PPS Polyphenylene Sulfide max 5 psi 2 316 Stainless Steel max 14 99 psi Pallet Seal Material 1 FEP 2 Nitrile NBR 3 Fluorocarbon FKM Body Seat Lid Seal Material 1 PTFE Body and FEP Seat Lid 2 Nitrile NBR 3 Fluorocarbon FKM Pressure Units z oz sq in n in w c mm mm w c mb mbar p psi Pressure Setting Maximum 14 99 psig 1034 mbarg Vacuum Units z oz sq in n in w c mm mm w c mb mbar p psi ...

Страница 3: ...bilities that exceed the most stringent industry standards 1 SCFH at 90 set point per valve Spring loaded pressure vacuum relief valves have the option of weight loaded pallets in either the vacuum or pressure portion of the valve The following is the list of the available spring loaded pressure vacuum relief valve models See Figure 4 Model 860 Pressure Vacuum Relief Valve Pipe Away Model 861 Top ...

Страница 4: ...near the set pressure in a continuous manner may cause the pallet to flutter or oscillate inside the valve chamber This is common to products of this model Operating the valve with flutter or oscillation may cause premature valve damage or wear over time The flutter zone typically begins at the set point and ends at the flow rate associated with 10 overpressure The Enardo Valve Sizing Program disp...

Страница 5: ... with a spring loaded valve Installing Pressure Vacuum Relief Valves with Only Spring Loaded Pallets 1 Attach the valve to the appropriate mating flange using a proper gasket To ensure proper function install the valves to a level horizontal surface so the pallet will move vertically For Models 860 960 and 962 the valve shipped from factory has certain studs installed 2 Orient valve in desired dir...

Страница 6: ...t loaded vacuum loosen fasteners on top of the valve and remove the lid hood or guide 2 Remove valve pallets from the unit 3 Separate the protective cardboard coverings from the pallets Be careful not to damage the pallet seal surface 4 Reinsert uncovered valve pallets back into the unit Make sure the lower stem on the pallet is centered into the valve seat If the pallet appears to be off center t...

Страница 7: ...ake sure the O ring in the lid has full contact with the sealing surface 7 Attach the valve to the appropriate mating flange using proper gasket To ensure proper function install the valve to a level horizontal surface so the pallet will move vertically Units that are tilted during usage may suffer premature damage or wear For more details on using weights to adjust the pallet setting refer to the...

Страница 8: ... AWAY SPRING LOADED PRESSURE VACUUM RELIEF VALVE MODEL 860 MODEL 860 MODEL 861 MODEL 963 MODEL 960 MODEL 960 MODEL 961 MODEL 962 VENT TO ATMOSPHERE SPRING LOADED PRESSURE VACUUM RELIEF VALVE Figure 7 860 and 960 Series Common Valve Configurations ...

Страница 9: ...c pressure before opening or removing a valve Pressure build up inside the tank can cause a spray to be emitted from the valve if opened under pressure Springs are energy storage devices and are dangerous if handled improperly Never loosen any nuts or screws until all spring preload has been relieved Instructions for removing spring preload are provided in this section Always use appropriate safet...

Страница 10: ...rly inside the valve If necessary gently clean the pallet and seal with a suitable solvent and nonabrasive cloth 7 Clean the removed parts with a suitable solvent 8 Inspect the valve seats installed in the unit The sealing surfaces should be smooth and free of nicks or buildup Check the guides for anything that may keep the valve pallet from moving properly inside the valve If necessary gently cle...

Страница 11: ...the 1 2 oz sq in or 1 in w c basic pallet setting use weights to increase the pallet s set pressure Enardo weights also come in units of ounces per square inch oz sq in or inches of water column in w c The individual setting of each weight is either etched or imprinted into the weight Emerson offers several different sizes of pressure vacuum relief valves To ensure that the right weight is placed ...

Страница 12: ...er marks are the property of their prospective owners Enardo is a mark owned by Regulator Technologies Tulsa LLC a business of Emerson Automation Solutions The contents of this publication are presented for informational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or s...

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