Anthony 127 Installation Manual

Series 127
Pressure Regulator for Steam

(Single Seat, Diaphragm, Spring Type)

Installation Instructions

No. 127 may be installed with diaphragm above or below the line or in a vertical line.

1. Before installing, be sure pipe ends are reamed and threads are cut
to size. Blow out lines to remove all loose scale and other foreign
matter that can damage valve seat.

2. Install regulator in the line with the arrow on the body pointing in the
direction of fl ow.

3. Connect 1⁄4" or 3⁄8" equalizer pipe as shown from the diaphragm
chamber to a point in the reduced pressure line not less than 18",
but preferably a greater distance from the regulator.

NOTE: When regulator is installed above the line or in a vertical line on

*Steam safety valve should be installed to provide emergency protection of equipment.

Bypass Line (Optional)

High Pressure

Annual inspection of all safety and control valves
is required and necessary. Regular inspection,
testing and cleaning assures maximum life and
proper product function.

Binding Nut

Packing Nut

Bonnet

No. 127

1

⁄4" or 3⁄8" Equalizer Pipe

Adjusting Collar

Below Hori­zontal Line

Needle Valve

steam service, the control pipe must have a loop to form a water seal to
prevent steam from contacting the diaphragm.

4. Install a needle valve in the control line. If uneven pressure should cause
the regulator to pulsate, its action can be stabilized by throttling the
valve.

NOTE: 15" diameter chambers are standardly furnished with a pressure
relief valve, factory set at 60psi to protect the chamber from excessive
pressure. A drain line should be attached to the relief valve to channel any
potential discharge to a safe place of disposal.

*

Line

Line

Note: When valve
is installed above
a horizontal line or
on a vertical line,
on steam service,
equalizer pipe must
have a water seal
loop.

*

Above

Horizontal

Line

Line

On

Vertical Line

Reduced
Pressure

IS-127

*

Reduced
Pressure

Needle

Valve

*Note: Always connect equalizer
pipe into a straight run of the
line, as shown.

To Adjust: When diaphragm is above the line, turn adjusting col-

lar from left to right to increase the reduced pressure - opposite to
decrease reduced pressure.

When diaphragm is below the line, turn adjusting collar from right
to left to increase the reduced pressure - opposite to decrease the
reduced pressure.

A steel rod is provided to turn adjusting collar.

Tighten packing nut lightly if leaks occur around stem. Repack stem
when light nut pressure cannot stop leak. Do not tighten packing nut
enough to bind stem. This causes uneven regulation and excessive
stem wear.

Limited Warranty: Watts Regulator Co. (the “Company”) warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of
original shipment. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge.

THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY THE COMPANY WITH RESPECT TO THE PRODUCT. THE COMPANY MAKES NO OTHER
WARRANTIES, EXPRESS OR IMPLIED. THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

The remedy described in the first paragraph of this warranty shall constitute the sole and exclusive remedy for breach of warranty, and the Company shall not be responsible for any incidental, special
or consequential damages, including without limitation, lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly, other costs resulting
from labor charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse water conditions, chemical, or any other circumstances over which the Company has no
control. This warranty shall be invalidated by any abuse, misuse, misapplication, improper installation or improper maintenance or alteration of the product.
Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion or limitation of incidental or consequential damages. Therefore the above
limitations may not apply to you. This Limited Warranty gives you specific legal rights, and you may have other rights that vary from State to State. You should consult applicable state laws to
determine your rights. SO FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF

MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL SHIPMENT.

Water Safety & Flow Control Products

To Clean: Inspect or replace worn valve disc, disconnect control pipe

and unscrew bonnet from valve body using blunt tool and hammer on
bonnet lugs. Lift entire topwork clear of body.

USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.com

Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca

IS-127 0829 EDP#1910215 © Watts, 2008