Aqua Environment Inc 873-1500 Instructions d'utilisation et d'entretien

Parcourez en ligne ou téléchargez le pdf Instructions d'utilisation et d'entretien pour {nom_de_la_catégorie} Aqua Environment Inc 873-1500. Aqua Environment Inc 873-1500 2 pages.

Imprimer la page

rev1/89, 2/94, 980123, 980902,001217,080816; 090519; 090805PS; 090910PS; 090917PS

OPERATION AND MAINTENANCE

MODEL 873-1500 & -5000 REGULATORS

The model 873 is a piston type hand loading

regulator. It utilizes a balanced poppet design for high

flow and minimum effect of inlet pressure on outlet

pressure. The poppet assembly is contained in a

cartridge with internal filtration for easy in-field

changing. The regulator is self venting but is

optionally available without the vent.

SPECIFICATIONS

• Maximum inlet pressure

• Maximum Outlet pressure

873-1500

873-5000

• Flow coefficient (C v )

(equivalent to 0.23" orifice)

• Rise of outlet pressure with

drop of inlet pressure

873-1500

873-5000

• Materials - body and cap -

internals -

seals, -

• Fittings

• Size

INSTALLATION

Use a suitable pipe thread sealant such as Teflon tape

on inlet and outlet threads. Avoid over torquing pipe

thread. Normal torque applied with a 6 or 8 inch long

wrench is ample. Use ample Teflon tape - 3 or 4 turns,

not 1 or 2 turns. The inlet is on the left when facing

the adjusting knob with the two gage ports upward.

An optional panel mounting nut is available (part no.

952). This nut permits mounting the regulator using a

1.25" hole in a panel or plate.

shipped oxygen clean and should NOT be used for

oxygen service as provided. Consult the factory for

details on oxygen service. The 1/2" port is the outlet.

The 1/4" port adjacent to the 1/2" port is the outlet

gauge port. The other two 1/4" ports are the inlet and

inlet gauge ports. Either of these ports can be used

as the inlet. Connect the inlet to the source gas such

as a high pressure storage tank. The outlet is capable

of being adjusted from 0 up. AN OUTLET GAUGE

AND RELIEF VALVE SET NO HIGHER THAN

MAXIMUM

OUTLET

CONNECTED TO THE OUTLET. A 1/2" NPT SIZE

RELIEF VALVE SHOULD BE USED FOR FULL

PROTECTION.

IF THE INLET PRESSURE CAN

EXCEED 6000 PSI A RELIEF

Aqua Environment Inc.

3100 Kerner Blvd, Ste N, San Rafael, CA 94901, (415) 453 8157

6000PSI (40 MPa)

1500 PSI

5000 PSI

0.8

35 PSI/1000 PSI

110 PSI/1000 PSI

aluminum

brass,stainless,

KEL-F, Viton

1/4" FNPT inlet

1/2" FNPT outlet

3" dia x 6" lg

The regulator is NOT

PRESSURE

SHOULD

VALVE SHOULD ALSO BE INSTALLED AT THE

INLET TO PREVENT EXCEEDING 6000 PSI.

OPERATION

Outlet pressure is adjusted by knob 10 (refer to

drawing) to the desired value as read on the outlet

gauge. When reducing the pressure the regulator will

self vent via the vent hole near the cap. This is normal.

When reducing set pressure reduce pressure to below

the new setting then increase pressure to the new

setting. If in-field adjustment is to be avoided, the knob

10 can be replaced by a bolt and lock nut. A 3/8" by 24

thread per inch bolt with a minimum thread length if one

inch is required.

MAINTENANCE & REPAIR

CAUTION

particulates or moisture can plug or freeze the internal

filter or valve seat. This can occur when up-stream

dryers are not changed or remain unused for long

periods allowing corrosion materials to accumulate. In

critical applications where it is important not to lose flow,

a larger particulate filter should be used upstream. Also

an orifice such as the Aqua model 796 should be used

downstream. This reduces the tendency to freeze

when moisture is present. Consult factory for details.

The user should establish time intervals for changing

the valve cartridge, filter and upstream dryers based on

experience and service conditions. No representation

is made herein as to time intervals as each use is

unique.

Back-up systems should be used in very

critical applications since field maintenance is hard to

insure.

The poppet cartridge 895 is a factory

assembled item and should be replaced if required and

not disassembled unless absolutely necessary. Spare

cartridges are available at a nominal cost and should be

kept on hand if rapid repairs are required.

CASES THE UNIT CAN BE RETURNED TO THE

FACTORY IF APPLICABLE OR DEALER FOR REPAIR

UNDER WARRANTY OR AT A NOMINAL CHARGE.

Maintenance or repairs should only be done by

qualified personnel in a clean environment by following

the drawings and parts lists herein.

If leakage occurs through the regulator or out the

regulator vent, allow the inlet and outlet pressure to

equalize by shutting off the inlet. If leakage continues

after the inlet and outlet equalize the vent seat 5 or

piston seal 14 are leaking. Replace these. If leakage

stops when the inlet and outlet pressure equalize the

poppet cartridge item 1 is leaking. Replace this.

drw 875-1500 & 5000

with

any

regulator

valve,

IN ALL