Steridose STERIVALVE 12 Instrucciones de funcionamiento

STERIVALVE®

Installation and operation manual

(Including welding guideline)

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---Table of Contents---

1. Introduction

1.1 Safety information

1.2 Scope and Purpose

1.3 Main Components

1.3.1 Valve housing

1.3.2 Actuators

1.3.3 Diaphragms

2. Assembly

2.1 General

2.1.1 Valve housing to actuator connection

2.1.2 Diaphragm connection

2.2 Assembly Procedure

2.2.1 Pneumatically operated valves

2.2.2 Manually operated valves

2.2.3 Additional procedures for installation of PTFE diaphragms

2.2.4 Position Indicators

2.2.4.1 Stainless Steel Pneumatic Actuators

2.2.4.2 Plastic Pneumatic Actuators

3. Operation

3.1 Pneumatically operated valves

3.2 Manually operated valves

3.3 Position Indicators

3.4 Cleaning

3.4.1 Internal cleaning

3.4.2 External cleaning

4. Maintenance/Service

4.1 Special tools required

4.2 Preventive Maintenance Schedule

4.3 Actuators

4.3.1 Manual Actuator

4.3.2 Pneumatic Actuator

4.4 Diaphragms

4.4.1 Interval of diaphragm inspection

4.4.2 Inspection procedure

5. Troubleshooting

6. Technical specifications

7. Spare parts list

8. Traceability and Conformity information

9. Contact information

APPENDIX A: Welding guide

APPENDIX B: Indicator systems

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1. INTRODUCTION

1.1 Safety information

DANGER! The equipment may be operated and maintained only when this maintenance manual

is thoroughly understood. Negligence to do so can result in personal injury and/or material

damage.

If the Sterivalve®is part of a piping system, please note:

DANGER! The system may be subject to overpressure, steam, hot water, vapors and

chemicals. Incorrect handling of the system may result in electrical shock and burn

injuries.

DANGER! When opening a valve to atmosphere or to a non-pressure vessel, always make sure

the pressure is 0 bar(g) (atmospheric pressure).

DANGER! Operation, maintenance and adjustment of the equipment may be performed by

authorized personnel only.

CAUTION! The valve inner surface is manufactured to a high polish and WILL get damaged if

tools are used improperly or without care.

1.2 Scope and Purpose

This document provides information regarding installation, normal operation, maintenance, and

troubleshooting of the valve, including safety aspects.

1.3 Main Components

The Sterivalve ®is a diaphragm valve especially designed for use in aseptic processes.

The valve consists of four major components:

Housing

Actuator –manual or pneumatic*

Diaphragm

Clamp (Sterivalve®51 (2”) and 76 (3”) do not feature a clamp. Instead, the housing and

actuator are bolted together).

*The pneumatic actuator can be fitted with electrical position switches indicating open/closed

position.

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Figure 1: Main Components

Sterivalve 12 (1/2”) to 38 (1.5”) Sterivalve 51(2”) and 76 (3”)

1.3.1 Valve housing

The valve housing is made as standard of stainless steel AISI 316L. Each valve housing is

marked with a respective lot number that links it with a specific material mill certificate.

Several housing configurations are available:

Process valves:

Standard process valves are available as shut-off, flow through, take-off, and divert. Refer to

figure 2. Other custom configurations are available upon request.

Bottom outlet valves:

Standard bottom outlet valves are available as single or double outlet, and double outlet with

steam integrated valve. Refer to figure 2. Outlet (s) can be provided as a straight weld-nose, or

elbow (90°or 45°) with or without TC connection. Other custom configurations are available

upon request.

Sampling valves:

Standard sampling valves are available as single or double outlet, for welding direct into a vessel

wall, or for mounting on a hygienic pad connection, such as Steriflange®. Refer to figure 3.

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Figure 2: Standard Valve Housing Configurations

Figure 3: Standard Sample Valve Housing Configurations

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1.3.2 Actuators

The valve is provided with the following actuator types:

Plastic Pneumatic Actuator 12 (1/2”) to 76 (3”)

The plastic pneumatic actuator is made of PPE (polyphenylene ether) polymer.

The actuators are sealed for life and are not serviceable.

The actuator is provided as spring to close/air to open (normally closed).

Figure 4: Plastic Pneumatic Actuators

Stainless Steel Pneumatic Actuator 12 (1/2”), 25 (1”), and 38 (1 ½”)

The pneumatically operated actuator for Sterivalve®has a stainless steel cover but it is not

autoclavable. The actuator is mounted on the housing with a clamp.

The stainless steel pneumatic actuator is available in two versions:

S-A, where the designation S-A indicates: Spring closed, Air open

A-A, where the designation A-A indicates: Air closed, Air open

Figure 5: Stainless Steel Pneumatic Actuator 12 (1/2"), 25 (1"), & 38 (1-1/2")

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Stainless Steel Pneumatic Actuator 51 (2”) & 76 (3”)

The stainless steel pneumatic actuator for valves 51 (2”) and 76 (3”) is sealed and not serviceable.

The actuator is bolted to the housing.

The pneumatic actuator is provided already pre-assembled with the adapter and adapter plate (see

figure 6).

The pneumatic actuator is spring/air. The cylinder is reversible and can be set-up as either spring

to close/air to open (normally closed), or spring to open/air to close (normally open).

Figure 6: Stainless Steel Pneumatic Actuator 51 (2") & 76 (3")

Manual Actuator 12 (1/2”) to 76 (3”)

The manually operated actuator is manufactured in stainless steel and is autoclavable. The

actuator is mounted in the same manner as with the pneumatic actuators.

An extended handle manual actuator is also available for bottom outlet valves. This option

makes the handle more accessible to the operator. See figure 8.

Figure 7: Manual Actuator 12 (1/2") to 76 (3") Figure 8: Extended Manual Handle

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1.3.3 Diaphragms

The valve has three different diaphragm material options. Consult Steridose for availability of

each material for any particular valve size.

Diaphragm material selection is a function of chemical compatibility with the process fluid (s),

including CIP solutions/steam, operational temperature and number of cycles.

The following materials are offered:

-Platinum cured Silicone, USP <88> Class VI.

-EPDM, USP <88> Class VI.

-Modified PTFE (TFM), USP <88> Class VI.

All diaphragms can be traced by their lot number. The lot number is marked in the packaging.

Additionally, silicone and EPDM diaphragms have markings on the back providing the

manufacturing date. See section 10 for more details.

Figure 9: Diaphragm Materials

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2. Assembly

2.1 General

When installing the valve sufficient clearance to remove/assemble the actuator must be

considered. The amount of space required depends on valve size and actuator configuration.

In order to ensure self draining, the valve must be installed in the correct position. See figures 10

and 11:

Figure 10: Self draining positions for process valves

The housing is self draining in these positions,

but NOT in this position.

Figure 11: Self draining position for bottom outlet valves

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2.1.1 Valve housing to actuator connection

The valve housing and actuator are connected with either a hygienic clamp union or bolts, as

indicated below:

Size 12 (1/2”): TC CLAMP 1"/ 1.5"

Size 25 (1”): TC CLAMP 2.5"

Size 38 (1 ½”): TC CLAMP 2.5"

Size 51 (2”): M8x16mm. ( 4pcs.)

Size 76 (3”): M8x16mm. ( 4pcs.)

2.1.2 Diaphragm connection

The diaphragm connection to the actuator stem is made by means of a pressure plate or threaded

connection depending on valve size and diaphragm material.

For valves 12 (1/2”), 25 (1”), and 38 (1 1/2”), with EPDM and Silicone diaphragms, the

diaphragm is attached by means of a pressure plate installed in the stem, type 1 or 2. As a

standard, the actuators are supplied with a type 1 pressure plate. When using type 1, the

diaphragm is pressed into the plate. The type 2 pressure plate is provided as an option and

recommended when it is expected that the valve would remain in the closed position for prolong

periods of time and would also be subject to steaming. The diaphragm screws into the type 2

pressure plate.

The pressure plates are interchangeable. Refer to Figure 13 for details on how to replace a type 1

for a type 2.

Figure 12: Diaphragm Connection Types

No Pressure Plate Pressure Plate Type 1 Pressure Plate Type 2

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