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TA Hydronics STAD Technical Description

TA Hydronics STAD Technical Description

Balancing valves

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Technical description
Application: Heating- and cooling
installations (glycol/brine). Potable
water installations (hot/cold). Seawater
(cold).
Functions:
With internal threads:
STS
Shut-off, draining (optional)
STA
Shut-off, draining (optional),
presetting of flow, internal
threads
STAD
Shut-off, draining (optional),
presetting of flow, flow
measuring, pressure reading
STA-DR Shut-off, draining (optional),
presetting of flow, flow
measuring, pressure reading
With external threads:
STADA
Shut-off, draining (optional),
presetting of flow, flow
measuring, pressure reading
Nominal pressure: PN 20
Max. working pressure:
2.0 MPa = 20 bar ≈ 300 psi
Max. working temperature: 120°C
For higher temperatures (but not
exceeding 150°C), contact TA.
Min. working temperature: -20°C
Material:
The valves are made completely of
®
AMETAL
and are fitted with a red nylon
handwheel and a protection cap. Seat
seal: Stem with EPDM O-ring.
Spindle seals: EPDM O-rings.
Moulded polyurethane insulation with
PVC cover, for heating and cooling
systems.
Marking:
Body: PN 20/150, DN and inch size
Handwheel: Valve type and DN
Threads:
Internal:
G3/8 - G2
External:
G1/2 - G2 1/2
STS, STA, STAD, STADA, STA-DR
Balancing valves
Einregulierungsventile
Vannes d'équilibrage
Technische Beschreibung
Anwendungsbereich: Heiz- und Kühl-
systeme (Glykol, Brine). Brauchwasser-
systeme (warm/kalt). Salzwasser (kalt).
Funktionen:
Version: Innengewinde:
STS
Absperren (Entleerung
wahlweise)
STA
Absperren, Voreinstellung
(Entleerung wahlweise)
STAD
Absperren, Voreinstellung,
Differenzdruck- und Durch-
flußmessung (Entleerung
wahlweise)
STA-DR Absperren, Voreinstellung,
Differenzdruck- und Durch-
flußmessung (Entleerung
wahlweise)
Version: Außengewinde für lose
Verschraubung:
STADA
Absperren, Voreinstellen,
Differenzdruck- und Durch-
flußmessung.
Nenndruck: PN 20
Max. Betriebsdruck:
2,0 MPa = 20 bar
Max. Betriebstemperatur: 120°C
(Wegen höherer Temperaturen, max.
jedoch 150°C, bitte bei TA anfragen)
Min. Betriebstemperatur: -20°C
Material: Gehäuse, Oberteil, Spindel,
Drosselkegel: AMETAL
®
.
Handrad: Polyamid-Kunststoff.
Sitzdichtung: Kegel mit O-Ring aus
EPDM.
Spindeldichtungen: O-Ring aus EPDM.
Vorgefertigte Isolierung aus Polyurethan
mit PVC-Oberflächenbeschichtung für
Wärme- und Kälteanlagen.
Kennzeichnung:
Gehäuse: PN 20/150, DN- und
Zollkennzeichnung
Handrad: Ventiltyp und DN
Gewinde:
Innen:
G3/8 - G2
Außen:
G1/2 - G2 1/2
Menu
5-5-10
1995.02
ISO 9001
Certification of Registration
Number FM 1045
Certified by BSI
Caractéristiques techniques
Applications: Installations de chauffa-
ge et de conditionnement d'air (eau
normale, glycolée et saumure). Installa-
tions de distribution d'eau sanitaire
(chaude ou froide). Eau de mer froide.
Fonctions: (vidange en option)
Taraudage interne:
STS
Vanne d'arrêt.
STA
Vanne d'arrêt, préréglage.
STAD
Vanne d'arrêt, préréglage,
prises de pression.
STA-DR Vanne d'arrêt, préréglage,
prises de pression, orifice
interne réduit.
Taraudage externe:
STADA
Vanne d'arrêt, préréglage,
prises de pression.
Pression nominale: PN 20
Pression de service maxi:
2,0 MPa = 20 bar
Température de service maxi: 120°C
Températures plus élevées (mais infér-
ieures à 150°C): prenez contact avec TA.
Température de service mini: -20°C
Matériaux: Vannes entièrement
®
fabriquées en AMETAL
, poignée en
nylon rouge. Étanchéité du siège: cône
avec joint torique en EPDM.
Joints de tige: joint torique en EPDM.
Calorifuge préformé en polyuréthanne
avec revêtement en PVC, prévu pour
les installations de chauffage et de
climatisation.
Marquage:
Corps: PN 20/150 (DN/pouce).
Volant: Type de vanne et DN.
Taraudages:
Interne:
G3/8 - G2
Externe:
G1/2 - G2 1/2
1

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Summarization of Contents

Technical Description
Application and Functions
Details the intended use, operational capabilities, and basic functions of the valves.
Technical Data
Covers pressure, temperature, materials, marking, and thread connection specifications.
Pre-setting Procedure
STA, STAD, STADA Pre-setting Steps
Step-by-step guide for setting the valves to a specific pressure drop using an Allen key.
General Information and Features
Draining Options
Explains the availability and function of optional draining banjos for hose connections.
Measurement Points
Describes the self-sealing measurement points for pressure testing and how to use them.
STA-DR Renovation Valves
Details the purpose and benefits of STA-DR valves for renovation and small flow applications.
STS Valve Specifications
STS with Draining Option
Technical data and part numbers for STS valves with draining banjo connection.
STS without Draining Option
Technical data and part numbers for STS valves without draining banjo connection.
STA and STAD Valve Specifications
STA Valve Details
Technical data and part numbers for STA valves, with and without draining options.
STAD Valve Details
Technical data and part numbers for STAD valves, with and without draining options.
Accessories and Components
Measurement Point Accessories
Details specific accessories for measurement points, including extensions for STAD and STA-DR models.
Handwheel Replacement
Information on replacing handwheels for STA, STAD, STA-DR, and STADA valves.
Prefabricated Insulation
Describes the prefabricated insulation options for STS, STA, STAD, and STA-DR valves.
Connection Sets and Draining Kit Installation
STADA Connection Sets
Details connection sets for STADA valves, including options for welding, soldering, and compression.
Miscellaneous Components
Covers rating plates and Allen keys used with TA valves.
Draining Kit Installation Guide
Instructions for installing a draining kit on STAD valves and for STS, STA, STAD, STADA models.
Balancing Procedures and Measurement Accuracy
Balancing Manual References
Lists manuals for various balancing adjustment methods for control circuits, distribution systems, and radiators.
Handwheel Calibration and Flow Deviation
Covers handwheel zero position calibration and factors affecting flow measurement accuracy.
Correction Factors and Valve Sizing
Liquid Correction Factors
Details how to adjust flow rates for liquids other than water based on specific density.
Formulas and Software for Sizing
Mentions TA-Calc software and formulas for presetting and sizing valves.
Calculation and Measurement Tools
Conversion Disc and CBI Instrument
Describes conversion disc and CBI instrument for flow, pressure, and setting calculations.
Example Calculation and Kv Values
Provides an example calculation and a table of Kv values for valve presetting.
Valve Performance Diagram
Pressure Drop Graph
Illustrates the relationship between flow rate, Kv, and pressure drop for valve performance.
STAD Valve Preset and Draining Instructions
STAD Presetting Procedure
Detailed steps for closing, opening, and adjusting the inner spindle for STAD valve presetting.
STAD Draining Procedure
Instructions for draining the STAD valve using the Allen key recess and turning the valve.
STAD Draining Kit Installation
Steps for fitting a draining kit to a STAD valve, including removing covers and nipples.
Handwheel Replacement Guide
English Handwheel Exchange
Instructions for removing the existing handwheel and fitting a new one to the valve.