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

23 article(s) in your cart
pos.	image	product	Configure	Actions
1		NSP-X-E
2		T209-0
3		T200
4		NP-255
5		QFS-12
6		T-200.L 24V
7		MO
8		ZDS-H
9		cIO CANopen Module
10		TK-301
11		TK-300
12		EE-2XF
13		TK-303
14		LU-1X0
15		T205-0
16		T202
17		TK-101
18		FluidIX Lub-6
19		ViscoScope® VA-300
20		ES-Serie
21		FDL400
22		Ex-BK
23		Fluidix Lub-VDT

NSP-X-E configure

1 Messbereiche

2 Gabeloberfläche

Amount

additional infomation

NP-255 configure

1 Ausführung

2 Staurohr-Anzahl

3 Anschlussgewinde

4 Druckschalter

5 Kontakt

6 Längen

Amount

additional infomation

QFS-12 configure

1 Kontakt

2 Schwimmermaterial

3 Kabelmaterial

4 Kabellänge

Amount

additional infomation

T-200.L 24V configure

1 Länge

2 Anschluss

3 Anschlussgewinde

4 Befestigungswinkel

5 Schwimmertyp

Amount

additional infomation

MO configure

1 Kontaktart

2 Kabelart

3 Kabellänge

4 Befestigung

Amount

additional infomation

TK-301 configure

1 Material Rohr und Verschraubung

2 Gewinde

3 Ausführung

4 Schwimmerausführung

5 Anschluss

6 Rohrlänge

7 Auflösung

8 Zubehör

Amount

additional infomation

TK-300 configure

1 Rohr-Verschraubungsmaterial

2 Gewinde

3 Ausführung

4 Schwimmerausführung

5 Anschluss

6 Rohrlänge

7 Auflösung

8 Zubehör

Amount

additional infomation

EE-2XF configure

1 Typ

2 Elektrodenanzahl

3 Anschlussgewinde

4 Stabmaterial

5 Stabdurchmesser

6 Beschichtung

7 Kabelbruchwiderstand

8 Sicherheitsfunktion

9 Stablänge

Amount

additional infomation

TK-303 configure

1 Gewinde

2 Schwimmerausführung

3 Anschluss

4 Rohrlänge

5 Auflösung

6 Explosionsschutz

7 Zubehör

Amount

additional infomation

LU-1X0 configure

1 Typ

Amount

additional infomation

TK-101 configure

1 ATEX

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

ES-Serie configure

1 Measurend

2 Safetyfunction

3 Direction

4 measuring-range

Amount

additional infomation

Ex-BK configure

1 Ex

Amount

additional infomation

Fluidix Lub-VDT configure

1 Signalausgang

2 Messbereich

Amount

additional infomation

NSP-X-E

Vibrating Limit Switch

The vibrating limit switch is a level limit switch for all kinds of fluids and is used in tanks, containers and pipelines.

Properties

Protection class EN60529 : IP 65/IP 67
Operating pressure : ≤ 40 bar
media density : ρ ≥ 0,7 g/cm³
Viscosity : max. 10000 mm²s
Rated current : < 15 mA
Protection class : III
Output : PNP
power : kurzschlussfest, überlastsicher
Display : LED (grün, rot)
Switching delay (cover) : ca. 0,5 s
Switching delay (release) : ca. 1 s

NSP-1-E

connection thread : G 1”
Operating temperature : –40...+150 °C
Storage temperature : –40...+85 °C
nominal voltage : 10...55 V DC (verpolsicher)
Current output : ≤ 350 mA

NSP-2-E

connection thread : G ½”
Operating temperature : –40...+100 °C
Storage temperature : –20...+70 °C
nominal voltage : 10...35 V DC (verpolsicher)
Current output : ≤ 250 mA

T209-0

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

connection : PO-Dose oder AA-Dose
Protection class : IP 65 Dose
Float type : max. 6x Kugel Edelstahl 105 mm Ø
Sliding tube length : max. 6000 mm
Operating temperature : max. 135 °C
Operating pressure : max. 20 bar
media density : 0,54 g/cm³
Number of contacts : max. 7x Wechsler / max. 10x Schließer / 7x Öffner
Switching current : 1A, 2A
Switching capacity : Wechsler 60W/VA | Schließer 100 W/VA | Öffner 60 W/VA
min. contact distance with several floats : 125 mm

T200

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

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

NP-255

Level Switch - multiple 2...4 - pneumatic

very reliable and simple sensors for scanning liquids, in particular when used for overflow protection. liquids can be aggressive, sticky or highly contaminated

Properties

Protection class EN60529 : IP 54
connection thread : ab G2”
Union nut : ab G2¾”
Container connection flange : ab DN 25
Hose Ø : 16 mm
Operating temperature : +60 °C
medium temperatur : max. +60 °C
Contact : Wechsler
Switching capacity : 500 VA
Switch-on point (Viton membrane) : 150 mm WS ±30 mm
Switch-off point (MembraneViton) : 90 mm WS ±30 mm

Material

Pitot tube / Hose : PVC
Screw fitting/grommet : PVC
flange : PVC
Connection head : PVC

Switching voltage

silver : max. 250 V AC
Gold : max. 24 V AC

Switching current

silver : max. 6 A
Gold : max. 100 mA

QFS-12

Two-Point Float-Switch

With the two-point float switch Type QFS-12 can be realized pump controls in liquid media on a simple way.

Properties

Protection class EN60529 : IP68
Side installation : PVC-Stopfbuchsverschraubung G 2”
Installation from above : PVC-Stopfbuchsverschraubung G 2”
Operating pressure : max. 2 bar
Contact : Wechselkontakt
Switching voltage : 4....250 V AC / DC
Switching current : 1mA.....1A
Switching capacity : 60W/VA
media density : ρ ≥ 0,9 g/cm³ bis ρ ≥ 0,8 g/cm³
Material Float : Polyethylen

Cable

TPK : PVC Basis
TPKV : PVC Basis verstärkt
PUR : Polyurethan
NEO : Neopren
SIL : Silikon
FEP : Teflon
AEM : Ethylen-Acrylat-Kautschuk

Operating temperature

TPK(V), NEO, AEM : max.+60 °C
PUR : max.+70 °C
FEP, SIL : max.+80 °C

T-200.L 24V

Leakage probes with general building authority approval

The leakage probes T-200.L (24 V) are approved by the "DIBt" on the basis of the "WasBauPVO" for the detection of leaked liquids hazardous to water.

Connection

Box : Polyesterdose (PO)
Head : Polyethylenanschlusskopf (PE)

Properties

Protection class : IP 65
Cable entry : PVDF-Verschraubung , PVC-Dichtung
Material Float : PE
Material leakage probe base : PE
Cable : TPK (PVC Basis)
Operating temperature : max. 60 °C
Operating pressure : atmosphärisch
media density : mit Schwimmer PE 52 ρ ≥ 1,05 g/cm³
Switching hysteresis : typ. 2 mm
Switching point tolerance : max. 2 mm

Power supply

nominal voltage : 24 V DC (24...30 V DC)
Power consumption : ≤ 1 W

Output

Output contact : 1 potentialfreier Wechselkontakt
Switching voltage : max. 250 V AC / 30 V DC
Switching current : max. 3 A AC / 3 A DC
Switching capacity : max. 750 VA / 90 W

Optocoupler

Switching voltage : max. 30 V
Switching current : max. 100 mA
displays : Betriebs-LED grün, Funktions-LED rot
Switching delay : ca. 0,5 s Anzug/Abfall

MO

Monostable Switch

Properties

Protection class : IP 65
Switching current : max. 1 A
Switching voltage : max. 24 V
Switching capacity : max. 20 W/VA

Material

Housing : Messingrohr Ø 10 x 1
Cable : TPK (PVC basis) | SIL (Silikon)

Operating temperature

TKP : –15 ° ... + 60 °C
SIL : –15 ° ... +130 °C

ZDS-H

Precision pressure switch for high-pressure applications up to 2,000 bar

Can be used in oil, brake fluid, diesel, air and other gases. With very good stability and overpressure resistance.

Properties

Pressure range : 0...2.000 bar gestuft
supply : 24 V DC
Output : Relais 60 V AC/1A
overload : 1,5 x Messbereich
Med. connection : G 1/4 Zoll
electrical connection : Schraubklemme
feature : Tasten, LCD-Anz.

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

TK-301

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

connection : Dose
Protection class socket / plug : IP 65
Protection class EN60529 cable : IP 55
Float type : 05 (06)
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 : 7,5 mm | 10 mm | 15 mm | 20 mm| 1 % | 2 % | 5 %
Accessories : R/I-Wandler TK-101

MaterialDensity

Type 05 : 0,81 g/cm³
Type 06 : 0,67 g/cm³

TK-300

Level transducer

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

Properties TK-300

connection : Polyesterdose | Aluminiumdose | Stecker nach DIN 43650
Protection class socket / plug : IP 65
Protection class EN60529 cable : IP 55
Float type : 10 (14)
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 : 10 mm, 15 mm oder 1%, 2%, 5% je nach Auflösung
CE marking : siehe Konformitätserklärung

Operating temperature

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

MaterialDensity

Type 10 : 0,72 g/cm³
Type 14 : 0,72 g/cm³
Type 18 : 0,82 g/cm³

EE-2XF

Conductive electrodes as overfill protection for Ex-Zone 0 (Cat. 1)

Conductive electrodes EE-2XF for monitoring conductive liquids within the Ex area Zone 0 (Cat. 1) for water-polluting and flammable liquids.

Properties

connection : Edelstahl (1.4571)
Protection class : IP 65
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", G1½”
Coating length : voll=ganzer Stab (10 mm am Stabende sind blank) teil =ca. 250 mm von oben
Rod diameter : 4 oder 6 mm
rod length : max. 6 m
Operating pressure media side : max. 40 bar
Maximum permissible electrical connection values : Stromkreis in Zündschutzart Eigensicherheit Ex ia IIC/IIB
Connection values : Ui 15V | Li 10 mA | Pi 100 mW
Internal inductances / capacitances : vernachlässigbar klein
Spacer : ab Länge > 1000 mm je 1000 mm 1 Abstandshalter

Operating temperature

Category 1 Class T6...T1 : 60 °C
Category 2 Class T6 : Medien & Umgebung 80 °C
Category 2 Class T5 : Medien & Umgebung 95°C
Category 2 Class T4 : Medien 130°C, Umgebung 100°C
Category 2 Class T3...T1 : Medien 150°C, Umgebung 100 °C

Material

Cable entry EE-21 : Edelstahl (1.4571)
Cable entry EE-22 : PVDF
Electrode body material : Edelstahl (1.4571)
Seal (head) : Viton
Seal (media side) : Viton / PTFE
Potential equalisation conductor connection : Edelstahl (1.4571)
Material electrode rods : Edelstahl (1.4571), Hastelloy B, Hastelloy C, Tantal
material coating : PTFE

TK-303

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 : 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

LU-1X0

Compact Ultrasonic Level Sensor

The LU-150 is a short-range integrated ultrasonic level transmitter, intrinsically safe as Ex-version LU-180. This general purpose, 2 wire, 4 to 20 mA loop powered transmitter is ideal for liquids, slurries, and bulk materials in open or closed vessels to 5 m (16.4 ft).

Properties

Protection class EN60529 : IP 68
Power supply : 12...30 V DC / 0.1A Spitze
Power consumption : Max. 0,75 W (25 mA bei 24 V DC)
Output : 4...20 mA
Max. Load : 600 Ω bei 24 V DC
Measuring span : Proportional oder umgekehrt proportional
Measurable materials : Flüssigkeiten, Schlämme, Schuttgüter
operating temperature : –20...+60 °C
Opening angle : 12°
working pressure : Atmosphärisch
Display : 3-stelliges LCD
Process connection : Gewinde G 2" (BSPP) EN 10226 PVDF
Weight : 1,3 Kg
Cable entry : Kabelverschraubung M 20 x 1.5
Material housing electronics : Polybutylenterephthalat PBT
Material sensor / thread : PVDF-Copolymer

Input

Measuring range : 0,25...5,0 m
frequency : 54 kHz

Measuring Accuracy

Measurement deviation : ± 0,25 % vom Messbereich (in Luft)
Resolution : 3 mm
Temperature compensation : im Sensor integriert
Echo processing : „Sonic Intelligence“ von Siemens

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

T202

Immersible Magnetic Probe made of stainless steel (1.4571)

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

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

TK-101

Measuring transducer (R/I-transducer)

The measuring transducer Tk101 and Tk101Ex are built directly into the connection boxes of our Liquid Level Measuring Instruments of type TK-30.

Properties

Operating temperature : -20...+60 °C
Storage temperature : -40...+80 °C
Ex-protection : siehe Zertifikat
CE marking : siehe Konformitätserklärung

Input

Resistance range in three-wire circuit : 4...10 kΩ
Measuring current : 0,8 mA @ RE = 4 kΩ
Measuring current : 0,33 mA bei RE = 10 kΩ
Measuring voltage : 3,3 V

Supply/Output

2-wire : 4...20 mA
Voltage(Um) : 11...28 V DC
Burden / load : 0...800 Ω |RBürde max = [(Um - Um min) / 0,02] Ω
Output signal in case of error : max. 24 mA

Fault influences

Max. Total error : ± 1 %
Temperature influence : -0,015 % / °C
Supply voltage influence : 0,025 % / V

Setting range

Full deflection : 60...105 %
Zero point adjustment : 0...25 %

FluidIX Lub-6

Inline-capable oil condition sensor based on a multi-channel infrared measuring cell for permanent monitoring of the oil condition and prevention of machine damage

Based on non-dispersive infrared technology (NDIR), ZILA GmbH has developed an inline-capable measuring system that permanently monitors the oil condition directly in the system. The optical measuring system consists of a multi-channel infrared measuring cell with associated electronics and peripherals.

General information

Housing : Robustes Aluminiumgehäuse
Operating voltage : 18...36V DC (max. 400 mA @18V)
Dimensions : 150 x 119 x 82 mm (L x B x H)

Operating conditions

Operating temperature: : 0...+70 °C (optional 0...+90 °C)
Maximum operating pressure: : 10 bar (optional 30 bar)
Storage temperature: : -40...+90 °C

Connection

ModBus TCP/IP : Ethernet-Port für Kommunikation über herstellerunabhängiges Busprotokoll
Digital I/O ports : 1x Digital In 18...36V (10 mA max.), 4x Digital Out 18...36V (5 mA max.)

Operation

User Interface : grafisch über Weboberfläche im eingebundenen Netzwerk

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

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

FDL400

Flow Data Logger

The FDL400 "Flow Data Logger 400" measuring device is suitable for measuring the flow of water and wastewater in fully or partially filled sewers or pipes of various geometries.

Properties

Housing : Aluminium
Protection class : IP30
Dimensions : 197 x 153 x 37,5mm (B x H x T)
Temperature range : 0 – 50°C
Supply voltage : 24V DC +/-20%
Power consumption : 120mA – 220mA
Reverse polarity protection : ✓
Display : 4x20

Outputs

analog 0(4)–20mA : 3x
digital : 4x
fixed for alarm : 1x
free configurable : 3x

display of measured value

Flow velocity :
Filling level :
flow :
flow rate :

Ex-BK

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