cashco CLEAN STEAM Installation, Operation & Maintenance Manual

Pressure reducing regulator

Hide thumbs

page of 9

/ 9
Bookmarks

Quick Links

Download this manual

ISO Registered Company

I. DESCRIPTION AND SCOPE

Model C-CS is a pressure reducing regulator used to control down stream (outlet or P

sizes are 3/4" (DN20), 1" (DN25), 1-1/2" (DN40), 2" (DN50) and 3" (DN80) with Tri-Clamp

regulator is primarily designed for steam service at tem per a tures equal to or less than 366°F (185°C); this cor re sponds

to 150 psig (10.3 Barg) sat u rat ed steam; however, the unit may also be used for clean gaseous or liquid applications.

II. INSTALLATION

1. An inlet block valve should always be in stalled.

2. If service application is continuous such that

shutdown is not readily accomplished, it is

recommended that inlet and outlet block valves

and a manual bypass valve be in stalled.

3. An outlet pressure gauge should be lo cat ed

ap prox i mate ly ten pipe diameters down stream

and within sight.

4. All installations should include a down stream

re lief device if the inlet pressure could exceed

the pressure rating of any down stream

equip ment.

5. Flow Direction: Install so the flow enters

through the bottom connection and exits the

side connection.

6. Install in a well drained pipe, properly trapped,

with spring chamber (2) in the vertical position

to allow for proper drain ing.

III. PRINCIPLE OF OPERATION

1. Movement occurs as pressure variations

reg is ter on the diaphragm. The registering

pres sure is the outlet, P

pressure. The range spring opposes di a phragm

move ment. As the outlet pressure drops, the

range spring pushes the diaphragm down,

INSTALLATION, OPERATION, & MAINTENANCE MANUAL

MODEL C-CS

"CLEAN STEAM"

PRESSURE REDUCING REGULATOR

SECTION l

The Model C-CS should never be used as a shut-off device.

SECTION II

SECTION III

or down stream

CAUTION

Inlet

@ P

Model C-CS

Reducing Regulator

Blowdown Drain

(Recommended Piping Schematic for Pressure Reducing Station)

7. For insulated piping systems, the regulator

should not be insulated.

Installation of adequate overpressure protection

is recommended to protect the regulator from

overpressure and all downstream equipment from

damage in the event of regulator failure.

Do not apply spring load or operate regulator with

hitch pin (21) removed from top of guide post (27 ).

Pre ma ture di a phragm failure will re sult.

IOM-C-CS

12-16

) pressure. Inlet and outlet

fitting connections. This

Outlet

@ P

SRV

Bypass

Blowdown Drain

CAUTION

Need help?

Do you have a question about the CLEAN STEAM and is the answer not in the manual?

Questions and answers

Summary of Contents for cashco CLEAN STEAM

Page 1 INSTALLATION, OPERATION, & MAINTENANCE MANUAL IOM-C-CS 12-16 MODEL C-CS ISO Registered Company “CLEAN STEAM” PRESSURE REDUCING REGULATOR SECTION l I. DESCRIPTION AND SCOPE Model C-CS is a pressure reducing regulator used to control down stream (outlet or P ) pressure. Inlet and outlet sizes are 3/4"...
Page 2 2. A complete diaphragm failure will cause the opening the port; as outlet pressure in creas es, reg u la tor to fail open. the diaphragm pushes up and the port closes. SECTION IV IV. START-UP 7. Slowly open the inlet (upstream) block valve NOTE: The regulator set point must be set ob serv ing the outlet (downstream) pressure under normal flowing conditions.
Page 3 SECTION VI VI. MAINTENANCE 4. Pull hitch pin (21) and lift up on handle (6) to remove. WARNING 5. Loosen and remove clamp nuts (13B), wash ers (13D), bolts (13C) and clamps (13A). See SYSTEM UNDER PRES SURE. Prior to per form ing Figure 1.
Page 4 20. Position spring (7) on to hub of pressure 11a. For Model C-CS : plate (28). Place adjusting screw (25.6) Remove diaphragm (17), O-ring (16), - with spring button (4) - over end of guide diaphragm gas ket (15) and body (1). post (27) and into spring (7) cav i ty.
Page 5: New Replacement Unit
Cashco, Inc. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Cashco, Inc.
Page 6 Guide Seals Composition Seat Figure 2 Barstock body Metal Seat Repair Parts Item No. Description Kit A Kit B Item No. Description Kit A Kit B Body Upper Guide Assembly Spring Chamber 25.6 Adjusting Screw Spring Button 25.7 Adjusting Screw Cap Handle 25.8 Dowel Pin...
Page 7 See the previous page for Item Number and Descriptions Figure 3 Investment Cast body Figure 4: Option-11, Diaphragm Restraint (Barstock Body Only) IOM-C-CS...
Page 8 ATEX requires that all components and equipment be evaluated. Cashco pressure regulators are considered components. Based on the ATEX Directive, Cashco considers the location where the pressure regulators are installed to be classified Equipment-group II, Category 3 because flammable gases would only be present for a short period of time in the event of a leak.
Page 9 If the above issues are addressed by selecting options that do not have potential sources of ignition, avoiding options that have not been assessed, and by taking the proper usage issue precautions, then Cashco regulators can be considered to be a mechanical device that does not have its own source of ignition and thus falls outside the scope of the ATEX directive.

This manual is also suitable for:

C-cs