BERMAD K10 Manuale utente

Installation, Operation and

Maintenance Manual (IOM)

Kinetic (Air / Vacuum)

Air Valve

Model K10

1

Table of Contents

General ......................................................................... Page 2

Safety ........................................................................... Page 2

Operational Data ........................................................... Page 3

Materials and Connections ............................................ Page 3

K10 (1", ¾") Parts List ................................................... Page 4

K10 (2") Parts List ......................................................... Page 5

Unpacking and post shipment inspection ...................... Page 6

Site Preparation ............................................................ Page 6

Installation...................................................................... Page 7

Start-up and first operation ........................................... Page 9

Operation and Maintenance .......................................... Page 9

Inspection ..................................................................... Page 10

Troubleshooting ............................................................ Page 11

Disassembling and Reassembling the valve (1", ¾")......... Page 12

Disassembling and Reassembling the valve (2") ............ Page 14

2

BERMAD K10 is a high quality Kinetic air valve for a

variety of irrigation networks and operating conditions.

It evacuates air during pipeline filling and enables large

volume air intake in the event of network draining.

With its advanced aerodynamic design and Kinetic

orifice, this valve provides excellent protection against

vacuum formation with improved sealing at low

pressure.

This document is the Installation, Operation and

Maintenance manual (IOM) of this valve; it describes the

procedures required for proper usage of the valve.

Since air valves operate in pressurized water networks

and sewage systems you are required to carefully read

this manual before using the valve. Handle the valve

with care and make sure to comply with all the relevant

required safety instructions and standards, general and

local.

Safety

General

3

Pressure rating ISO PN10, ANSI / ASME 150

Operating pressure range 0.1-10 bar / 1.5-150 psi

Operating temperature Water up to 60°C / 140˚F

Operational Data

Materials and Connections

Body material Glass-reinforced plastic

Inlet diameter DN20, DN25, DN50 (¾", 1" 2")

Connections Threaded Male BSPT,

NPT for ¾", 1" (DN20, DN25)

Threaded Female BSP, NPT for 2" (DN50)

Outlet types Sideways

4

Test Point (#7)

Body (#2)

Kinetic Seal (#4)

Float (#3)

O-Ring (#5)

Spacer (#6)

Base (#1)

K10 1", ¾" Parts List

5

Stopper Disc (#2)

Test Point (#7)

Body (#1)

Kinetic Seal (#4)

Float (#3)

K10 2", Parts List

6

Unpacking and post shipment inspection

■Make sure that till the actual installation the valve

remains dry and clean in its original package.

■Unpack the valve and make sure that all the wrapping

materials are removed.

■Before installation it is necessary to inspect that no

damage to the valve had occurred during shipment;

do not install a damaged valve!

■Verify that the valve to be installed meets the design

specifications of the specific installation site;

take extra care and make sure that the expected

system pressure complies with the pressure rating of

the valve.

■Air Valves located above ground should be protected

from freezing, contamination and vandalism.

■If the valve is to be installed in a pit, make sure that

the pit has proper drainage and sufficient dimensions

for servicing the valve.

■Flush the pipeline prior to the Air Valve installation in

order to prevent damage to the valve internals due

to large debris carried by the water during startup.

Site Preparation

7

■Main irrigation networks - Air relief and vacuum

prevention downstream of pumps, along supply lines

and at elevations in main irrigation networks.

■Irrigation control head – Air relief and vacuum

prevention at filtration and fertilization stations.

■Infield systems – Prevention of vacuum formation.

■Landscape irrigation – Prevention of vacuum formation.

Typical Applications

Installation

■The K10 air valve is not to be used in systems

containing high suspended solids; consider

selecting other Bermad Air Valve models for

such water type.

8

■Install the Air Valve as close as possible to the pipe,

at a high point of its circumference, in vertical position

(within 5 degrees of vertical alignment) and with its inlet

facing down.

■The diameter of the pipe connecting the Air Valve

with the pipeline should be at least equal to the Air

Valve inlet diameter.

■Install a shutoff valve between the air valve and

the pipeline for allowing easy inspection and

maintenance.

Installation instructions

Indice

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