Home
Cart

Cart

product added to request

Get an offer

Full name*

E-Mail*

telephone*

Company*

street*

place*

zip code*

country*

additional information

I agree that my details and data are collected and stored electronically in order to answer my enquiry.

Your cart

22 article(s) in your cart
pos.	image	product	Configure	Actions
1		ZT Serie
2		HE
3		ES-20
4		TK-304
5		ELH 230 V
6		TK-308
7		T205-0
8		TK-307
9		ER-214
10		T204.F
11		ViscoScope® VA-300
12		Fluidix Lub-VDT
13		T200 Ex
14		ES-Serie
15		TK-302
16		ELH
17		cIO CANopen Module
18		Ex-QFS-3x
19		EE-2X
20		T205 VA
21		SG2420
22		BK-380

HE configure

1 Elektrodenkörper

2 Verschraubung

3 Elektrodenanzahl

4 Stabmaterial

5 Länge

6 EX

7 SIL

Amount

additional infomation

ES-20 configure

1 Measurand

2 Safety-Function-1

3 Safety-Function-2

4 Direction

5 Measuringrange

6 Channel-Expansion

Amount

additional infomation

TK-304 configure

1 Gewinde

2 Schwimmerausführung

3 Anschluss

4 Rohrlänge

5 Auflösung

6 Zubehör

Amount

additional infomation

ELH 230 V configure

1 Stabmaterial

2 Anschluss

3 Kabellänge

4 Kabelbruchwiderstand

5 Sondenkörper-Durchmesser

6 Anschlussgewinde

7 Sondenkörper-Material

8 Kabelmaterial

9 Auswerteelektronik

Amount

additional infomation

TK-308 configure

1 Rohr-Verschraubungs-Material

2 Gewinde

3 Ausführung

4 Schwimmerausführung

5 Anschluss

6 Rohrlänge

7 Auflösung

8 Zubehör

Amount

additional infomation

TK-307 configure

1 Anschluss

2 Rohrlänge

3 Auflösung

4 Zubehör

Amount

additional infomation

ER-214 configure

1 Gehäuse

2 Ausgang

3 Schaltverzögerung

4 Empfindlichkeitsbereich

5 Versorgungsspannung

6 Quittiertaster

Amount

additional infomation

ViscoScope® VA-300 configure

1 Viscosity

2 Temperature

3 Process-Connection

4 Material

5 Non-active-Extension

6 Ex-Bereich

Amount

additional infomation

Fluidix Lub-VDT configure

1 Signalausgang

2 Messbereich

Amount

additional infomation

ES-Serie configure

1 Measurend

2 Safetyfunction

3 Direction

4 measuring-range

Amount

additional infomation

TK-302 configure

1 Rohr-Verschraubungs-Material

2 Gewinde

3 Ausführung

4 Schwimmerausführungen

5 Anschluss

6 Rohrlänge

7 Auflösung

8 Zubehör

Amount

additional infomation

Ex-QFS-3x configure

1 Schwimmertyp

2 Kontakt

3 Schaltkontakt

4 Kabelmaterial

5 Kabellänge

6 Beschwerungsgewicht

Amount

additional infomation

EE-2X configure

1 Typ

2 Elektrodenanzahl

3 Anschlussgewinde

4 Stabmaterial

5 Stabdurchmesser

6 Beschichtung

7 Stablänge

8 SIL2

Amount

additional infomation

BK-380 configure

1 Kontakt

2 Stecker

Amount

additional infomation

ZT Serie

Reliable pressure measurement and optimum process monitoring with the ZT series

From low to high pressure and suitable for liquid and gaseous media.

Properties

Pressure type : Relativdruck | Absolutdruck
Housing : Edelstahl
Overpressure : 1,5* fach bis 400 bar, darüber 1,2* fach
Bursting pressure : 3* fach bis 600 bar, darüber 1,5* fach

Measurement parameters

response time : < 1 ms
Total error : ≤ 0,5 % FS
Non-linearity : ≤ 0,2 % FS
Non-repeatability : ≤ 0,10 % FS
Hysteresis : ≤ 0,15 % FS

ambient conditions

Temperature of the fluid : -40...+125 °C (0...+80 °C kompensierter Bereich)
Ambient temperature : -40...+105 °C
Storage temperature : -40...+125°C
Shock resistance : g 1000 gemäß IEC 60068-2-32
Vibration resistance : g 20 gemäß IEC 60068-2-6

HE

Pendant electrodes – single, multiple

suitable for high tanks, wells and sewers

tdata.AnschlussmitDose

Protection class EN60529 : IP 54
connection thread : G 2”

tdata.AnschlussohneDose

Protection class EN60529 : IP 67
connection thread : n.a. / G 2”

Material

electrode body : PVC, PTFE, PPH
Screw connection : PVC, PTFE
Cable : PVC, PTFE
electrode rods : Edelstahl (1.4571), Hastelloy C, Titan, Tantal

Operating temperature

HE_PVC : 60 °C
HE-PTFE : 150°C

ES-20

Pressure limiter | Pressure monitor | Safety pressure limiter | Pressure regulator | electronic safety switching device

TÜV-certified, type-tested electronic safety switching device (SIL2)

Properties

Operating voltage : 16...32 V DC (max. 5,9 W)
Dimensions : 150 x 60 x 42 mm (L x B x H)
Housing : Aluminium (eloxiert)
Protection class : IP65

Approvals

DGRL 2014/68/EU Kat:IV : Baumustergeprüft gemäß Druckgeräterichtlinie
DIN EN12263:1998 : Kälteanlagen und Wärmepumpen Sicherheitsschalteinrichtungen zur Druckbegrenzung -Anforderungen und Prüfungen; Kategorie IV
DIN EN378:2020 : Kälteanlagen und Wärmepumpen - Sicherheitstechnische und umweltrelevante Anforderungen
DIN EN61508:2011 : SIL2

Operating conditions

Pressure type : Relativdruck, Differenzdruck
Temperature of the fluid : -40…+125 °C
Ambient temperature : -20…+65 °C
Parts in contact with media : Edelstahl

Connections

Process connection Relative pressure (internal thread) : G ¼“
Process connection differential pressure (internal thread) : G ⅛“
Analogue current output : 1 x 4...20 mA
Digital inputs/outputs (configurable) : 2 x Alarm / 1 x Alarm & 1 x Fernentriegelung

Measuring range relative pressure

Nominal pressure (variable selectable) : -1...500 bar
Overload pressure : 2 x Nenndruck
Bursting pressure : 4 x Nenndruck
Setting accuracy : 0,1 % vom Nenndruck

Measuring range differential pressure

Nominal pressure : 0...1 mbar 0...10 mbar 0...50 mbar 0...100 mbar 0...250 mbar 0...1.000 mbar
Overload pressure : 10 x Nenndruck
Bursting pressure : 15 x Nenndruck
Setting accuracy : 0,1 % vom Nenndruck

TK-304

Level transmitter for Ex-Zone 0 (Cat.1)

T30... continuous magnetic immersible probes are used for quasi-acquisition of the filling level in containers with liquid media.

Technical Data

connection : Dose
Protection class Socket : IP 65
Float type : 03, 04, 09
Sliding tube length : max. 6000 mm
Operating temperature : max. 135 °C
Operating pressure : max. 20 bar (Kugel) max. 15 bar (Zylinder)
Resolution : 7,5 mm | 10 mm
Accessories : R/I-Wandler TK-101

MaterialDensity

Type 03 : 0,75 g/cm³
Type 04 : 0,65 g/cm³
Type 09 : 0,76 g/cm³

ELH 230 V

Hanging electrode as leakage probe 24...230 V AC/DC

The leakage probes of the type series ELH are approved by the "DIBt" for the monitoring of collecting chambers, collecting devices, inspection and filling shafts.

General data

Protection class : IP 68
Probe body material : PE, PVC, PPH, PVDF
Diameter probe body : 15 mm, 25 mm, 40 mm
Operating temperature : atmosphärisch
Operating pressure : atmosphärisch
Resistance value of line monitoring : 22 kΩ / 100 kΩ

Material

Screw connection : PVDF
Cable : TPK ( PVC Basis)
on request : FEP (Teflon), PVC - blau
cable length : auf Wunsch (Standard 3 m)
Material Sensor rods : Edelstahl (1.4571), Hastelloy B, Hastelloy C, Titan, Tantal, Glas-Kohlestifte

TK-308

Liquid Level Measuring Instruments Series

T30... continuous magnetic immersible probes are used for quasi-acquisition of the filling level in containers with liquid media.

Technical Data

Protection class socket / plug : IP 65
Protection class EN60529 cable : IP 55
Float type : 11,12, 15, 17
connection cable : 1000 mm LiYY 0,5 mm² oder Silikon 0,5 mm²
Sliding tube length : max. 6000 mm
Operating pressure : max. 6 bar
Resolution : 7,5 mm | 10 mm | 15 mm | 20 mm | 1 % | 2 % | 5 %
Accessories : R/I-Wandler TK-101

Operating temperature

PVC : max. 60 °C
PE : max. 80 °C
PP : max. 90 °C

MaterialDensity

Type 11 : 0,60 g/cm³
Type 12 : 1,00 g/cm³
Type 15 : 0,59 g/cm³
Type 17 : 0,63 g/cm³

T205-0

Immersible Magnetic Probe made of PVC, PE, PPH, PTFE or stainless steel (1.4571)

Magnetic immersion probes for use with highly aggressive liquid media for detecting level limits in containers

Properties

Protection class : IP 68 Kabel
Float type : max. 4x Zylinder Edelstahl 27 mm Ø
connection cable : 1000 mm PUR Blau
Sliding tube length : max. 6000 mm
Operating temperature : max. 120 °C
Operating pressure : max. 10 bar (Schwimmer)
media density : 0,78 g/cm³
Number of contacts : max. 2 Schließer / 2 Öffner
Switching current : 1A, 2A
Switching capacity : 50 W/VA
min. contact distance with several floats : 50 mm

TK-307

Stainless steel level sensor

T30... continuous magnetic immersible probes are used for quasi-acquisition of the filling level in containers with liquid media.

Technical Data

Connection housing : Aluminium H 30 mm x B 50 mm x T 45 mm
Connection socket : Polyester H 55 mm x B 80 mm x T 45 mm
Protection class socket / plug : IP 65
Sliding tube length : max. 6000 mm
Operating temperature : max. 130 °C
Resolution depending on type : 7,5 mm | 10 mm | 15 mm | 20 mm | 1% | 2% | 5%
Mounting : 2 Schlauchschellen
Accessories : R/I-Wandler TK-101

ER-214

Electrode Relays

Electrode relays for conductive level detection for all areas in which conductive, liquid media are to be detected, controlled or monitored

Properties

Protection class EN60529 clamp : IP 20
Protection class EN60529 front panel housing : IP 40
Operating temperature : –20...+60 °C
Storage temperature : –30...+80 °C
AC nominal frequency : 48...62 Hz
Power consumption : max. 1 W / VA
Weight : ca. 150 g

Input

Open circuit voltage : ≤ 10 V AC
Short-circuit current : ≤ 5 mA

Output

Contacts : 1 potentialfreie Wechselkontakte pro Kanal
Switching voltage : min. 5 V | max. 250 V AC | max. 150 V DC
Switching current : min. 5 mA | max. cosφ=1 3A | max. cosφ=0,7 1 A/AC | max. cosφ=1
Switching capacity : min. 300 mW | max. 750 VA / 150 W (30 V DC / 5 A) / 18 W (150 V DC / 0,12 A)
Working / Idle current : umschaltbar
overvoltage category : EN 61010-1 Kategorie III

T204.F

Immersible Magnetic Probes Ex area zone 0 (Cat 1)

Properties

connection : Polyester Dose | Aluminium Dose
Protection class : IP 65 Dose
number of floats : max. 4x
Operating temperature : max. 135 °C
F-Contact : 1 / 12 kΩ
Number of additional contacts : max. 3x Wechsler | 5x Schließer | 3x Öffner
Switching current : 1 A, 2 A (nur mit Schirmung)
Switching voltage : 230 V AC

Float

Stainless steel ball 52mm Ø : max. 20 bar | 0,75 g/cm³
Stainless steel ball 61 mm Ø : max. 20 bar | 0,65 g/cm³
Stainless steel cylinder 44 mm Ø : max. 15 bar | 0,76 g/cm³
min. contact gap type 03 : 75 mm
min. contact gap type 04 : 85 mm
min. contact gap type 09 : 75 mm

Switching contacts and switching capacity

Changeover contact : max. 3x | 60W/VA
normally open : max. 5x | 100 W / VA
Normally closed contact : max. 3x | 60 W/VA

ViscoScope® VA-300

Maintenance-free inline process viscometer for real-time viscosity measurement

The ViscoScope® sensors are made of high-quality, first-class stainless steel and impress with their intelligent, robust design.

Properties

Protection class : IP65
Material : 1.4571 / 1.4404 (316Ti / 316L)
Process temperature : -40°C … +450°C
Process pressure : Vakuum ... 450 bar
Process connections : DIN Flansch | ANSI Flansch | NPT | Varivent® | Tri-Clamp
Cable length sensor - transmitter : max. 1.000m
max. flow velocity : 10 m / sec
Ex approval : (optional) II 1/2G Ex ia IIC T6...T3 Ga/Gb
Material (optional) : Hastelloy C22, Duplex 2205, Teflon

Sensor types

big cylinder : VA-300L
small cylinder : VA-300M
Sphere : VA-300H
small sphere : VA-300X

Measuring range

VA-300L : 0,1 - 2.500 mPa·s x g/cm³
VA-300M : 1 - 25.000 mPa·s x g/cm³
VA-300H : 0,01...250 Pa·s x g/cm³
VA-300X : 0,1...2.500 Pa·s x g/cm³

Probe dimensions

VA-300L : Ø 32 x 190 mm
VA-300M : Ø 32 x 165 mm
VA-300H : Ø 32 x 130 mm
VA-300X : Ø 19 x 115 mm

Fluidix Lub-VDT

Oil condition sensor for permanent monitoring of mechanical properties of liquids

The FluidIX Lub-VDT enables inline monitoring of mechanical fluid properties.

Properties

CE marking : EN 61000-6-1/2/3/4
Operating voltage : 9...32 V DC
Housing material : Edelstahl
Protection class : IP 67
Dimensions : 30x90 mm
Process connection : G 3/8"
Electrical connection : M12-8 A-Coding
Weight : 150g
Measurement output : 2x 4...20mA
bus protocol : ModbusRTU, CANopen

Measured variables

Resonator frequency : 20...25 kHz
Viscosity : 1-650 cSt (mm²/s)
density : 0.5-1.5 g/cm³
Temperature : -40...+125°C
sampling rate : 1/s

Operating conditions

Temperature of the fluid : -40...+125°C
Housing temperature : -40...+100°C
oil pressure : Max. 50 bar
particle size : 250 μm

T200 Ex

Magnetic immersion probes with TÜV 02 ATEX 1795X approval for Ex zone 0

Magnetic immersion probes for detecting fill level limit values in containers for liquid media, where an explosive atmosphere of zone 0 (category 1) is present in the gas space above the liquid and zone 1 (category 2) outside the container in the area of the junction box

Properties

connection : Polyesterdose | Aluminiumdose
Protection class EN60529 : IP 65 Anschlussdose
Connector plug : 3- und 6-fach
connection thread : G 1/8" | G 3/8" | G 1/4" | G 1/2" | G 1" | G1 1/4" | G1 1/2" | G2" | G3"
connection cable : LiYY max. 80 °C | PTFE-Litze, 0,24 mm² | Silikon max. 150 °C
Sliding tube length : max. 1000 mm (Rohr Ø 8 mm) | 6000 mm
Operating pressure : max. 20 bar
Viscosity : < 100 cp
Protection class EN60529 : IP 68 Führungsrohr
Switching voltage : max. 250 V
Switching hysteresis : ca. 2...5 mm
Holding range : ca. 12 mm
Contact function : monostabil | bistabil

Operating temperature

ltdata. : max. +60...+150 °C
ltdata. : min. –20... –10 °C
ltdata. : höhere oder niedrigere Temperaturen auf Anfrage

Switching capacity

Changeover contact : 60 W/VA
normally open : 100 W/VA
Normally closed contact : 60 W/VA

Switching current

Changeover contact : max. 1 A
NO/NC contact : max. 2 A

Contacts

Changeover contact : 8
normally open : 10
Normally closed contact : 7

ES-Serie

electronic safety switching device

TÜV-certified, type-tested electronic safety switching device (SIL2)

Properties

Operating voltage : 16...32 V DC (max. 5,9 W)
Dimensions : 150 x 60 x 42 mm (L x B x H)
Housing : Aluminium (eloxiert)
Protection class : IP65

Approvals

DGRL 2014/68/EU Kat:IV : Baumustergeprüft gemäß Druckgeräterichtlinie
DIN EN12263:1998 : Kälteanlagen und Wärmepumpen Sicherheitsschalteinrichtungen zur Druckbegrenzung -Anforderungen und Prüfungen; Kategorie IV
DIN EN378:2020 : Kälteanlagen und Wärmepumpen - Sicherheitstechnische und umweltrelevante Anforderungen
DIN EN61508:2011 : SIL2

Measuring ranges

Measuring range relative pressure (nominal pressure) : -1…500 bar
Measuring range differential pressure (nominal pressure) : 0…1 mbar - 0…1.000 mbar
Setting accuracy (from nominal pressure) : 0,1 %

Operating conditions

Pressure type : Relativdruck, Differenzdruck
Temperature of the fluid : -40…+125 °C
Ambient temperature : -20…+65 °C
Parts in contact with media : Edelstahl

process connection

Version relative pressure : G ¼“ Innengewinde
Version differential pressure : G ⅛“ Innengewinde
Adapter for process connection : 6mm; 8mm oder 10mm

electrical connection

Analogue current output : 1x 4…20 mA
Digital inputs/outputs : 2x Alarm oder 1x Alarm & 1x Fernentriegelung

Load capacity of the switching contacts DC (24V)

DC1 : 16 A
DC13 : 1,5A

Load capacity of the switching contacts AC (230V)

AC1 : 16 A
AC3 : 10 A
AC15 : 7 A

TK-302

Level transducer made of brass and stainless steel

T30... continuous magnetic immersible probes are used for quasi-acquisition of the filling level in containers with liquid media.

Technical Data

connection : Dose
Protection class socket / plug : IP 65
Protection class EN60529 cable : IP 55
Float type : 03 (04)
connection cable : 1000 mm Silikon 0,5 mm²
Sliding tube length : max. 6000 mm
Operating temperature : max. 130 °C
Operating pressure : max. 20 bar
Resolution : 10 mm | 15 mm | 1 % | 2 % | 5 %
Accessories : R/I-Wandler TK-101

MaterialDensity

Type 03 : 0,75 g/cm³
Type 04 : 0,65 g/cm³

ELH

Suspension electrode as leakage probe

The leakage probes of the type series ELH are approved by the "DIBt" for the monitoring of collecting chambers, collecting devices, inspection and filling shafts.

General data

Protection class : IP 68
Probe body material : PE, PVC, PPH, PVDF
Diameter probe body : 15 mm, 25 mm, 40 mm
Operating temperature : atmosphärisch
Operating pressure : atmosphärisch
Resistance value of line monitoring : 22 kΩ / 100 kΩ

Material

Screw connection : PVDF
Cable : TPK ( PVC Basis)
on request : FEP (Teflon), PVC - blau
cable length : auf Wunsch (Standard 3 m)
Material Sensor rods : Edelstahl (1.4571), Hastelloy B, Hastelloy C, Titan, Tantal, Glas-Kohlestifte

cIO CANopen Module

Compact I/O modules for DIN rail mounting

product series of compact CANopen I/O modules with various electrical connections

Properties

Housing : Kunststoffgehäuse*
Dimensions (LxBxH) : 18 x 90 x 62 mm
Internal circuits : Ausgangsschutzschaltungen gegen Überspannung und elektrostasche Entladung
Fieldbus and I/O level : getrennt durch galvanische Trennung
ltdata.*zumAufrastenaufDIN-Trageschienen :

ElectricalConnection

Operating voltage : 11...32V DC (typ. 24V DC)
Operating temperature : 0...+55 °C
Operating temperature : optional -40...+70 °C
Conductor cross-section : 0,08...1,5 mm² (AWG28...AWG14)

CAN bus properties

baud rate (max.) : 1 MBit
ciA Standards : Ds301 Version 4.2 & DS401 Version 3.0
ISO standards : ISO11898 (+ Transceiver TJA1050)
PDO : siehe Dokumente

Ex-QFS-3x

Mercury-free float switches with Ex approval

These float switches have a mercury-free switching system consisting of a microswitch and a ball which actuates this switch.

Technical Data

Protection class EN60529 : IP 68
Material Float : PP
Cable : TPK (PVC Basis), PVC Basis verstärkt, Polyurethan, Silikon, Teflon, Ethylen-Acrylat-Kautschuk
Conductor cross-section : 3x 0,75 mm², Polyurethan 3x 0,5 mm²
Operating temperature TPK(V) : AEM Kabel max.+ 60 °C
Operating temperature PUR cable : max.+ 70 °C
Operating temperature SIL, FEP cable : max.+ 85 °C
Operating pressure : max. 1 bar Zylinder| max. 2 bar Kugel
Switching system : Mikroschalter
Contact type : Wechsler, NO, NC
Electrical connection data, Ex-protection : siehe EG-Prüfbescheinigung TüV 09 ATEX 555342
Inductive/capacitive loads : Unbedingt Kontaktschutz vorsehen
CE marking : siehe Konformitätserklärung
Weight : ca. 200 g

Media density Ex-QFS-30

TPK(V) cable : ρρ 0,85 g/cm³
PUR cable : ρρ 0,95 g/cm³
SIL cable : ρρ 0,90 g/cm³
FEP cable : ρρ 0,95 g/cm³
AEM Cable : ρρ 0,90 g/cm³

Media density Ex-QFS-31

Sphere : ρρ 0,60 g/cm

Mounting position

Ex-QFS-30 : waagerecht mit G1” Verschraubung, senkrecht mit Beschwerungsgewicht (Ex)
Ex-QFS-31 : waagerecht mit Flansch ab DN 100 (PP)

EE-2X

electrode, multiple for Ex-Zone 0 (Cat. 1)

The conductive electrodes of the EE-21/EE-22 series enable the monitoring of conductive liquids within the Ex area Zone 0 (Cat. 1).

Variants

cable connection on side : EE-21
cable connection on top : EE-22

Properties

connection : Edelstahl (1.4571)
Protection class EN60529 : IP65
Ex-protection : TÜV 02 ATEX 1796 X
Ex protection type : II 1 G Ex ia IIC T6 bzw. Ex ia IIB T6 / II ½ G Ex ia IIC T6 bzw. Ex ia IIB T6
connection thread : G1" | G1¼"
Cable entry EE-21 : Edelstahl (1.4571)
Cable entry EE-22 : Kunststoff
Rod diameter : 4 mm | 6 mm
rod length : max. 6.000 mm
Operating pressure media side : max. 40 bar
Spacer : ab Länge > 1000 mm je 1 pro 1000 mm

Material

electrode body : Edelstahl (1.4571)
Seal (head) : Viton
Seal (media side) : Viton | PTFE
Potential equalisation conductor connection : Edelstahl (1.4571)
electrode rods : Edelstahl (1.4571) | Hastelloy C | Tantal
Coating : PTFE

Operating temperature

Category 1 Class T6...T1 : 60 °C
Category 2 Class T6 : 80 °C
Category 2 Class T5 : 95 °C
Category 2 Class T4 : 130 °C (100°C)
Category 2 Class T3...T1 : 150 °C (100°C)

T205 VA

Stainless steel magnetic immersion probes

Magnetic immersion probes for use with highly aggressive liquid media for detecting level limits in containers

Properties

Protection class : IP 65
Number of floats : max. 2x Typ 08
connection cable : Silikon Litze
Operating temperature : max. 100 °C
Operating pressure : max. 10 bar (Zylinder)
Number of contacts : max. 2 x Schließer/ Öffner wahlweise durch 180°-Drehung des Schwimmers bei 2 Schwimmern
Switching current : 1 A
Switching voltage : 250 V AC
Switching capacity : 50 W/VA
Sliding tube length : max. 1000 mm
media density : Typ 08: 0,78 g/cm³
float : Zylinder Edelstahl 1.4571 27 mm Ø
min. contact distance with several floats : 50 mm

SG2420

Supply unit SG2420 for flow sensor

The DSM-2420 sensor can only be operated in hazardous areas with the associated SG2420 power supply unit or appropriately designed, approved Zener barriers.

Properties

Housing : Kunststoff
Protection class : IP00
Ambient temperature : -20…+60°C
Supply voltage : 24V DC +20% / -10%

BK-380

Bistable change-over contact

Magnetically actuated changeover switch, which permanently changes its electrical switching state as a result of a magnetic system passing by, depending on the direction of movement.

Properties