Rate of flow control valve type E2114-00

Rate of flow control valve type E2114-00

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Main features

Material and coating

Item

Quantity

Description

Material

01

01

Body

FGS 400-15 (coating BFE epoxy 250μm mini)

02

01

Cover

FGS 400-15 (coating BFE epoxy 250μm mini)

03

01

Cover bearing

Bronze

04

01

Seat

AISI 316

05

01

Quad-ring retainer plate

AISI 316

06

01

Quad-ring retainer size 50-200

Quad-ring retainer size 250-700

AISI 316

FGS 500-15 + Epoxy

07

01

Stem

AISI 303

08

02

Stem nuts

AISI 303

09

01

Spacer

AISI 303

10

02

Diaphragm washers epoxy coated

Steel

11

01

Spring

AISI 302

12

*

Stud

AISI 303

13

*

Nut

AISI 303

14

*

Washer

AISI 303

15

01

Quad-ring

NBR (KTW-WRC)

16

01

Seat O-ring

Viton

17

01

Diaphragm

NBR nylon reinforced (KTW-WRC)

18

01

O-ring

NBR

19

02

Centring taper pin

AISI 303

20

01

Base position indicator

Brass Ni-plated

21

01

Position indicator housing

Brass Ni-plated

22

01

Position indicator stem

AISI 303

23

01

Position indicator

Glass

24

02

O-ring

NBR

25

01

Brass Ni-plated

Brass Ni-plated

26

01

O-ring

NBR

27

01

Reduction

AISI 304

Central Control Unit TUP 93

Item

Quantity

Description

Material (type)

01

01

Body

AISI 303

02

03

Cock

AISI 303

03

03

Plug

AISI 303

04

03

O-ring

NBR

05

02

Non return valve (WRC)

06

01

Screen

AISI 316

07

01

Rivet

Brass

08

01

Bottom label

Polycarbonate makrolon

09

01

Top label

Polycarbonate makrolon

Mounting scheme (I)

Item

Quantity

Description

01

2

Attachment flange

02

2

Flanged taper

03

3

Isolating valve

04

1

Strainer with drain cock

05

1

Automatic control valve E2001

06

1

Dismantling joint

07

1

Air release / vacuum breaker valve

Flow rate / Depression - Diagram (measured on the orifice ref. 9)

Pilot IS 14

Item

Description

Material

1

Cap

PVC

2

Top cover

Brass Ni-plated

3

Top spring guide

Brass Ni-plated

4

Spring

Inox AISI 302

5

Bottom spring guide

Brass Ni-plated

6

Bottom cover

Bronze + Ni-plated

7

Obturator bushing

Delrin

8

Main body

Bronze + Ni-plated

9

Obturator

Inox AISI-303

10

Adaptor

Brass Ni-plated

11

Bottom diaphragm washer

Inox AISI-304

12

Diaphragm

NBR nylon reinforced

13

Top diaphragm washer

Inox AISI-304
14Pilot extensionBronze + Ni-plated
15Setting screw with counter nutInox AISI-304

Hydraulic scheme

Item

Description

Material

1

Rate of flow control valve IS14

3a 3b 3c

Ball valve

Brass Ni-plated

3dBall valveBrass Ni-plated
3e 3fBall valve (differential manometer)Brass Ni-plated

4

Main valve

5

Position indicator (with manual venting cock)

E50

7

Centralized control unit TUP-93

8Clamping ringBronze
9Calibrated orifice plateInox

Installation

Packing and storage

The valves are packed in special cardboard boxes. Outside the carton are clearly pointed out:

  • The arrow indicating the position of the valve
  • The name of the customer
  • The code of the valve
  • The number of order confirmation

The valve is protected by two hardening foam cushions, carefully coated by a thermal plate.

This kind of packing if properly stored avoids all the damages originated from transport, unloading, and handling before installation. Avoid storing it under the rain for more than 24 hours!

Open the upper side of the carton and remove the upper cushion. Do not lift the valve by utilizing the pilot, the pilot circuit, or the position indicator.

For any kind of handling we recommend to utilize proper eyebolts.

Installation

The mounting scheme of the valve is shown on the drawing.

If the valve is working as pressure sustaining device in a transport line, it may be recommended to install a by-pass around it, which will allow to put it out of service during some hours for maintenance purpose, without generating problem for the exploitation of the system.

The choice of the proper "by-pass" alternative must be taken considering the following points:

  • a- Can the main transport/feeding line be put out of service during some hours (corresponding to the requested time for maintaining the MAIN VALVE), without generating problem for the exploitation of the system? In particular, it must be considered that an empty system may require several hours to be vented properly.
  • b- Pressure relief: Has the downstream or upstream zone of the system to be protected against any risk of pressure surge (quick closing of heavy demands, closing time) ?

Should installation require the main valve stem to be horizontal (cover pointed sideways), manufacturer should be consulted concerning valves of DN200 mm and larger.

Note: All sizes on request are available with an additional venting cover device ( venting cock installed at the top of the cover ) to permit a simple escaping of air during the first commissioning.

  • Before control valve assembly, make sure that pipeline it is free from foreign matters or any other obstacle. (note: pipeline must be cleaned, possibly, before assembly. For an ideal pipeline cleaning we suggest a 1.5 m/sec speed during several hours!).
  • In presence of foreign matters into the fluid it is indispensable to adopt a strainer on valve upstream side.
  • Keep free around the valve space enough for operations as maintenance and calibration.
  • Set up the valve according to main valve cast arrow indicating flow sense.
  • Install the valve so that the FLOW ARROW marked on the valve body matches flow through the line: UPSTREAM → DOWNSTREAM

Start up of an automatic control valve requires that proper procedures be followed. Time must be allowed for the valve to react to adjustments and the system to stabilize. The objective of the following procedure is to bring the valve into service in a controlled manner.

Commissioning

The start-up of an automatic valve requires that proper procedures be followed. Time must allowed after each setting, for the valve to react to adjustment and the system stabilize. The purpose is to bring the valve into service in a controlled manner.

Etape 1

Remove pilot valve protection unscrewing it (1), turn counter-clockwise (OUT) adjusting screw up to be completely screwed out (on feeling mechanic resistance do not force movement in a view to avoid screw lock pin damages). This operation is the simulation of minimum value setting. It must rescind from this value to reach the required one.

Etape 2

Check TUP – 93 (rep7) as above described.

Etape 3

Open slowly (one or two turns) upstream isolating valve allowing controlled filling of the main valve (4) that starts closing. Venting air inside the valve by venting valve placed above the position indicator (5).

Etape 4

Open completely the upstream isolating valve and open downstream isolating valve (one or two turns) in a view to permit valve downstream side part filling and consequent pilot valve (1) air release. At the beginning of this operation main valve (4) is closed; it will appear a small flow rate through pilot circuit. Screw clockwise pilot (1) adjusting screw up to when main valve starts opening and puts in pressure pipeline downstream part.

Etape 5

To reach needed flow rate keep on turning adjusting screw of pilot (1) clockwise half turn each time with pauses of 30 seconds after each adjusting up to reach the needed flow rate. After each variation check reached value by flow rate meter or by differential manometer. If the downstream pipeline results empty, we recommend to execute adjusting slowly and gradually so to avoid overpressures caused by air presence into the pipeline. Air must be ejected by drain devices positioned either on control valve downstream side or along the main pipeline.

Etape 6

After adjusting wait system stabilization and then open completely isolating valve on downstream side.

Etape 7 : Adjusting of control unit TUP - 93

Adjusting of opening speed determines a reduction of flow rate in exit from main valve control chamber (4). If flow rate restoring it is too slow (regulator pre-adjusting value = 2), when there is a raising demand on downstream side, let increase adjusting value up to 4 and so on up to reaching sufficient value. In case of restoring too speed let decrease adjusting value of 1 as maximum.

Adjusting of closing speed determines a reduction of in coming flow rate on main valve control chamber (4). If closing speed it is so high to cause overpressures on upstream side, pre-adjusting value = 4 it must be weakened so to attenuate this fact.

Maintenance

Recommended spare parts:

  • 1 pilot
  • Set of joints for IS14
  • Set of joint for E2001

The quality of the material used in the manufacture of our valves should produce no wear of the internal components.

However we are recommending:

After 6 months of service :

  • Control and clean eventually the TUP - 93 screen Note: an obstructed screen due progressively the valve out of order.

After 12/18 months of service :

  • Control and clean the TUP - 93screen.
  • Take the main valve apart, by removing first the complete pilot circuit.
  • Unscrew the stud nuts and remove the cover and internal diaphragm assembly.
  • Check for any eventual damage of the QUAD-RING and the diaphragm.
  • Clean thoroughly the internal part of the valve, grease slightly the stem at both guided locations (water grease, non-toxic!!).
  • Assemble the main valve and the pilot circuit.
  • Put the valve back into service.

This control should then allow to determine the cycle of the requested maintenance, since it is taking into consideration the true service conditions of the valve.

For any further information contact our Customer Service, indicating all data as per plastic label on main valve body. Give full detailed information’s about working conditions, the type of problem, and report the adjusting values (OS-CS-RS).