manual and pneumatic valve execution between flange

8/10/2019 Manual and Pneumatic Valve Execution Between Flange

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Butterfly valves HC A bit of safety – functional and hygienic



3

Process and Hygiene

Handtmann

■ Butterfly valves HC

Design in detail

Its structural task is to ensure contamination-free operation dur-

ing production and CIP cleaning. Microbial deposits and chemi-

cal residue can be prevented in the product area.

This has a crucial effect on these requirements and the subse-

quent product quality through the switching functionality of the

butterfly valve. Here the Handtmann know-how lies in the details

and is difficult to recognise at the first glance.

■ Minimizing of the mechanical-dynamic load of the seal

■ Optimum coordination between the sealing

geometry and the installation situation

■ Sealing behaviour with temperature changes

taken into account

Handtmann uses the established EPDM material for its shaped

packing. A standardised, consistent elastomer quality is a

prerequisite to ensure switching functionality, hygiene and the

service life.

■ High abrasion resistance, good antifriction properties

■ High chemical and thermal resistance

■ Good form stability, minimal volume swelling

Reliable and modern – Improved, hygienic construction

and design for even more process and product safety

Safety in detail

Mechanical safety as part of the process

■ Reinforced valve shat for torque transfer

■ Forged valve disks with a favourable flow form

■ Increased pressure blow resistance and closing seal

Biological safety as part of the process

■ Optimised vapour geometry

■ Cleanability according to EHEDG guideline

Cost-effectiveness

■ Long service life of seal

■ Seal shape can be used in older valve types

■ Rotary actuators can be disassembled or repaired

■ Small maintenance costs

The use of Handtmann butterfly valves has been proven effective for decades in

many areas of the food and beverage industry. Safe function with daily operation

– in conjunction with many years of reliable service – is what sets this valve type

apart from the rest.The variety of valves, which can be combined with a control and adjustment unit

if necessary, provides the optimum valve solution for many applications. Butterfly

valves are a cost-effective alternative to distribute and block off fluid and gaseous

processing media.

The Handtmann butterfly valve was structurally revised according to EHEDG

guidelines. The modified product area geometry, the materials used and the

surface quality play a role in achieving a good level of cleanability, which is

confirmed by the institute testing the product.



5

Butterfly valve types

Handtmann


Switch function manual

Standard butterfly valves Leakage butterfly valve

Switch function pneumatic

The easiest type of operation is manual. The different adapta-

tion possibilities of manual actuation are suitable for all installa-

tion positions.

■ Manual lever with integrated 8 x 45° ball stop,

■ 360° round switch-over, locking optional

■ Manual crank for various settings

■ Bolt-on set for proximity switches

The butterfly valves can optionally be equipped with a pneumatic

actuator. The entire nominal size range is covered with 3 actuator

sizes. The actuator with the standard model is spring-closing/air-open-

ing, other models are available on request.

The switching state of a single butterfly valve is clearly defined via two

possible end positions. They can be recorded via the proximity initiator

or the control head.

■ Actuators are spaciously dimensioned for high torques

■ Integrated assembly points for proximity switches

■ Actuator versions with a settable stroke limitation

■ Actuator versions for the control head or position controller

Handtmann butterfly valves are manufactures as different models. Actuation

can optionally be via a manual lever or via the built-in pneumatic actuator.

Possible monitoring of the switch positions is via a proximity switch or a

control head.

■ Butterfly valves with different process connections

■ Intermediate clamp execution, easy removal of the 2-part valve body

■ Multi-way combination, short discharge with good CIP cleanability

If safe, mechanical media separation is required, leakage butterfly

valves can be used. This cost-effective valve type consists of two

valve disks arranged in succession. One of the valve disks is control-

led via the actuator, the other has forced mechanical control.

The leakage area is equipped with a rinse and leakage valve when

the valve position is closed.

■ Switch function manual or pneumatic

■ Safe media separation

■ Limited switching loss

■ Intermediate clamping execution

Whatever your needs – Handtmann delivers the

ideal butterfly valve for your application



7

Handtmann


Proximity switch

Control head V.CON

Position controller FLOWfix

The easiest, most cost-effective way to monitor the switching

position. Assembly is sideways under the actuator or with a bolt-

on kit on the bottom with manual actuation.

The newly developed control head V.CON is also available for the

Handtmann actuators. Depending on the control head model,

it takes over pneumatic control, recording and acknowledgement

of the switch positions and the monitoring and acknowledge-

ment of programmed diagnosis and service functions.

■ "High-end" electronics

■ Contact-free, inductive distance measurement system

■ Large, clearly visible LED domed display

■ Easy commissioning

■ Independent determination of the switch positions

■ Service and data interface

■ Connection 24 V, AS-I

The intelligent position controller FLOWfix is especially adapted to

the Handtmann actuators. Many tasks in the fluid and gas control

area can often be performed with simpler, more cost-effective solu-

tions with acceptable precision.

The prescribed adjustment range of the butterfly valve is "intelli-

gently linearised" through adjustment factors dependent on nomi-

nal sizes. This adjustment principle allows an adjustment tolerance

of 0.5 – 2.0 % depending on the medium.

■ Cost-effective, compact adjustment value

■ Control of fluids and gas / CO²■ Housing with display and touch screen

■ Connection 24 V, signal 4 – 20 mA

■ DP profile bus interface

Process automation

Hygiene and automation are closely interrelated. The high demands placed on

quality and quantity can mostly only be met with automated processes. The

complex processes with a variety of process components require an ever-growing

number of "intelligent" control components.

Depending on the requirements, here Handtmann offers different high-quality

control and adjustment components for valve control, monitoring and process

visualisation.

This makes the process reasonable and documentable. User friendliness

and process safety are considerably improved.

Demanding solutions for a smooth flow – Handtmann valve technology

with intelligent control components adapted to the process.



Albert Handtmann Armaturenfabrik GmbH & Co. KG · Arthur-Handtmann-Str. 11 · D-88400 Biberach an der Riss Telefon +49 (0)7351-342-0 · Fax +49 (0)7351-342-4480 · E-Mail: [email protected] · www.handtmann.de

Technical specifications butterf ly valves

Technical specifications control components

Materials

Product-side 1.4307, 1.4404

Non-product-side 1.4301, 1.4307

Surface

Product-side ≤ 0.8 µm

Non-product-side Finely rotated

Seals

Material EPDM, FDA-compliant

Temperature to 140 °C

Operating data

Operating pressure 0 – 10 bar

Process / CIP 0 – 95 °CControl air 5 – 8 bar

Sizes

DN nominal sizes 25 – 200

OD nominal sizes 1“ – 4“

Positions Functions

Type Switching Adjustment

Proximity switch 1 / 2 x – –

Feedback head V.CON 2 x – –

Control head V.CON 2 x Open / Closed –

Positioner head FLOWfix 0 – 90 ° Open / Closed 0 – 90 °

manual and pneumatic valve execution between flange

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