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Diaphragm seal systems

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Pressure gauge per EN 837-1 with mounted diaphragm seal
With threaded connection, welded design

Diaphragm seal with threaded connection welded design

Model
DSS551.34M

Application 

● For aggressive, contaminated or hot media

● Process industry

● Water treatment

Special features

● Process connection with thread to provide for direct threaded connection

● Version with internal diaphragm

● Diaphragm seal parts all welded

● Universal application

Specification

Design 

pressure gauge with bourdon tube per EN837-1, screwed to diaphragm seal  

Nominal size(NS)

100

Accuracy class

1.0

Scale range

0 ... 1 to 0 ... 60 bar [0 ... 15 to 0 ... 800 psi]

or all other equivalent vacuum or combined pressure and vacuum ranges

Pressure limitation


Steady:  Full scale value

Fluctuating:  0.9 x full scale value

Short time:  1.3 x full scale value

Permissible temperature range  

Medium:   -10 ... 150 °C [14 ... 302 °F]

Ambient:   10 ... 40 °C [50 ... 104 °F]

Storage:    10 ... 60 °C [50 ... 140 °F]

Ingress protection  

IP65 per IEC/EN 60529

Material

Wetted

Diaphragm: Stainless steel 1.4435 [316L] or Hastelloy C276

Diaphragm seal: Stainless steel 1.4435 [316L] or Hastelloy C276


Non-wetted

Dial, pointer: Aluminium

Case: Stainless steel 1.4301 [304]

Window: Laminated safety glass

Level of cleanliness 

of wetted parts 

Oil and grease free per ASTM G93-03 level F and ISO

15001 (< 1,000 mg/m²)

System fill fluid

Silicone oil KN 2 for general applications


Scale ranges in bar [psi]

0...1 [0 ... 15]

0 ... 1.6 [0 ... 20]

0 ... 2.5 [0 ... 30]

0 ... 4 [0 ... 60]

0 ... 6 [0 ... 100]

0 ... 10 [0 ... 160]

0 ... 16 [0 ... 200]

0 ... 25 [0 ... 300]

0 ... 40 [0 ... 600]

0 ... 60 [0 ...1000]


Vacuum and +/- measuring range

-1 ... +5 [-30 inHg ... +70]

-1 ... +9 [-30 inHg ... +130]

-1 ... +10 [-30 inHg ... +145]


Dimensions in mm [in]


Type of process connection: Threaded connection, threaded design

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Scale range / Process connection (type of process connection, pipe standard, pipe dimension) / Parts / Certificates