Interchangeable connectors for pressure gauges

Sheet No.: 1-260 GB

TEMPRESS interchangeable connectors

  • Standard fitting on all TEMPRESS pressure gauges
  • Manufactured in two different materials
    • BRASS
    • Stainless Steel, AISI316
    • More than 20 thread types available eg. G½B, ½ NPT, M12×1,

All TEMPRESS pressure gauges, with the exception of one, are supplied with the interchangeable connector that best meets the customer’s requirements. Should a thread other than the original be required, the nipple can be easily exchanged for one from the chart below.

NB.    DN80 duplex and differential pressure gauge

  • 80M11 / 80M51 / 80M12 / 80M52
    • use two nipples for DN63, see table 2
  • 80M21 / 80M61 / 80M22 / 80M62
    • use 1 nipple for DN80 (bottom), see tabel 1
    • use 1 nipple for DN63 (top), see table 2

NB.    DN63 pressure gauge with rear center connection

This instrument type does not have an interchangeable connector.

Connectors for pressure gauge
DN63
Thread typeBrass
Max pressureAISI316Max pressure
G1/8B684630 bar6921000 bar
G1/4B
G1/4B DIN
675
5635
800 bar
800 bar
688
3828
1250 bar
1250 bar
G3/8B
G3/8B w/spigot
680
6379
1000 bar
1000 bar
1411600 bar
G1/2B
6901250 bar6931600 bar
1/4 BSP T33991250 bar
1/4 flare (7/16-UNF20(SAE))
3/8 flare (5/8-18 UNF(SAE))
687
6931
800 bar
1000 bar
32191250 bar
1/8 NPT
1/4 NPT
1/2 NPT
4047
681
630 bar
800 bar
5158
4050
4051
1000 bar
1250 bar
1600 bar
Throttle screw
– Standard damping
– Powerfull damping
.
152
2129
.
1427
M10x0,751804
M12x1,5
(for Ø6mm tube, compr. gland)
3872
Carbon steel
Union – M12x1,5
Olive – Ø6 mm
1387
1388
Gaket
– PTFE
.
0405-004
Extra gasket
G1/4
G3/8
G1/2
Fiber
H143
H144
H145
Copper
8760
.
8637
Connectors for pressure gauge
DN80, DN100, DN160
Thread typeBrass
Max pressureAISI316Max pressure
G1/8B59581000 bar
G1/4B
G1/4B w/spigot
671
6381
500 bar
500 bar
689800 bar
G3/8B523630 bar6781600 bar
G1/2B
G1/2B w/spigot
560
6382
800 bar
800 bar
678
3420
1600 bar
1600 bar
G3/4B48011250 bar44811600 bar
1/4 flare (7/16-20 UNF(SAE))672500 bar314800 bar
1/8 NPT
1/4 NPT
3/8 NPT
1/2 NPT
686
682
3190
9032
630 bar
500 bar
630 bar
3734
4690
677
800 bar
1250 bar
1600 bar
Swivel G1/2
brass/steel
2674
1/4 NPT female 6516500 bar
Throttle screw
– Standard damping
– Powerfull damping
.
152
2129
.
1427
2001-006
M20x1,54667800 bar51991600 bar
M12x1,5
(for Ø6mm tube, compr. gland)
M14x1,5
(for Ø8mm tube, compr. gland)
M16x1,5
(forØ10mm tube, compr. gland)
2367
.
3286
.
1945
.
315 bar
.
315 bar
.
315 bar
.
Carbon Steel
Union
M12x1,5
M14x1,5
M16x1,5
Olive
Ø6 mm
Ø8 mm
Ø10 mm
.
1387
150
6525
.
1388
2860
6535
Gaket
– PTFE
– Aluminium
.
0405-002
Extra gasket
G1/4
G3/8
G1/2
Fiber
H143
H144
H145
Copper
8760
.
8637
Pressure conversion table
BarPSI
3154500
5007300
6309200
80011700
100014500
160023500

Throttle screw

All interchangeable connectors have a thread in the internal inlet hole for mounting a throttle screw.

The role of the throttle screw is to even out pulsations in the medium before it reaches the measuring system. This restricts the amount of pointer vibration, allowing the precise pressure to be read.

Throttle screws are available in standard and heavy duty versions. The standard throttle screw should always be used for pressures of 60 bar. However, it should also be mounted for lower pressures where pulsations in the me- dium occur. The heavy duty version may be used where large pulsations and pressure peaks occur in the medium

Compression connection

The interchangeable connectors with M12, M14 and M16 thread types are designed for a compression connection. This method of connection requires only a Ø6, Ø8 or Ø10 mm tube without a collar. Using a union and olive, the tube is mounted directly on the connector

Gasket between nipple and pressure gauge

The gasket between the instrument and the interchangeable connector is made of PTFE (Teflon) and is specially designed to create a perfect seal.

Always use the original gasket. The wrong gasket may lead to leakage and, at worst, measuring errors.

Always replace the gasket if the connector has been dismounted.

Gasket between connector and external fitting

Fibre or copper gaskets are ideal for sealing the join between the connector and, for example, the valve on which the pressure gauge is mounted.

Never use fibre or copper gaskets between the instrument and the connector.

Connector mounting or replacement

Tightening momentum:    DN63                      14 Nm

all others               20 Nm

Due to the stress deformation of the PTFE gasket, the connector should be tightened immediately before mounting the pressure gauge.