The All Metal Media Chamber provides superior resistance to corrosion and high-pressure conditions, making it ideal for a wide range of process applications. The differential pressure gauge accurately measures the difference in pressure between two points, offering precise readings that are crucial for process control and monitoring.
With Model DP73, you get a versatile and reliable solution that meets the high standards of the process industry. Its all-metal construction ensures long-lasting performance, while its precision measurement capabilities provide the accuracy you need to maintain optimal process conditions.
Whether you're in the chemical, petrochemical, pharmaceutical, or food and beverage industry, our All Metal Media Chamber Differential Pressure Gauge, Model DP73, is your trusted partner for process control and monitoring. Trust us for quality, reliability, and precision in your process applications.
● For gaseous and liquid aggressive media that are not highly viscous or crystallising, also in aggressive environments
● Pump monitoring and control
● Filter monitoring
● Level measurement on closed vessels
● Differential pressure measuring ranges from -1 … +30 bar [-14.5 ... 435 psi] to 0 ... 40 bar [0 ... 580 psi]
● High working pressure (static pressure) and high overload safety, selectable 40 bar [580 psi], 100 bar [1,450 psi], 250 bar [3,625 psi], 400 bar [5,800 psi] and 650 bar [9,425 psi]
● The transmission fluid in the measuring chamber dampens the indicator in caseof high changes of the rate of pressure
● Model DP73M: Monel version
■ Pressures p1 and p2 act on the ⊕ and ⊖ sides of the measuring chamber.
■ The media chambers are separated from the transmission fluid-filled measuring chamber by one diaphragm element each.
■ The pressure difference between ⊕ and ⊖ sides deflects the diaphragm of the ⊕ side and displaces the transmission fluid.
■ The deflection is transmitted to the movement via the link.
■ The movement converts the deflection into a pointer rotation. Overload safety Through load take-up points with metallic seating for the diaphragm elements, the instrument can withstand extremely high working pressures with pressure ratings of PN 40 ... PN 650 (40 ... 650 bar [580 ... 9,425 psi]).
Standard
|
Design
|
EN837-3 Diaphragm and capsule pressure gauges, dimensions, metrology, requirements and testing
DIN 16003 Pressure measuring instruments for differential pressure |
|
Nominal size(mm) |
100，160 |
|
Window |
Laminated safety glass |
|
Connection location |
Lower mount (radial) Other connection locations on request |
|
Case
|
Design Safety level “S1” per EN 837-1: With blow-out device
Material Stainless steel 1.4404 (316L) Stainless steel 1.4571 (316Ti) |
|
Case filling
|
■ Without ■ Glycerine-water mixture ■ Silicone oil Instruments with case filling with compensating valve to vent case. |
|
Venting of the media chambers
|
Span ≤ 0.25 bar [3.63 psi] With venting
Span > 0.25 bar [3.63 psi] ■ Without ■ With venting |
| Movement |
Stainless steel |
|
Measuring element |
Type of measuring element
2 diaphragm elements with transmission fluid |
|
Material |
Diaphragm element Span ≤ 0.25 bar [3.63 psi] ■ Stainless steel 316L ■ Hastelloy C276
Span > 0.25 bar [3.63 psi] ■ Stainless steel 316L / NiCr alloy (Inconel) ■ Hastelloy C276 |
|
Accuracy specifications |
Accuracy class ■ 1.6 ■ 2.5 ■ 1.0 (application test required) |
|
Zero point setting |
Instruments with case filling ■ Without ■ External setting
Instruments without case filling ■ Without ■ Setting by means of adjustable pointer |
|
Influence of static pressure |
Depending on scale range and pressure rating |
|
Temperature error |
On deviation from the reference conditions at the measuring system: ≤ ±0.5 % per 10 °C [≤ ±0.5 % per 18 °F] of full scale value |
|
Reference conditions |
Ambient temperature +20 °C [+68 °F] |
Static pressure influence
Other process connections on request
|
Material
|
Measuring flanges with process connection ■ Stainless steel 316L ■ Hastelloy C276 |
|
Sealing |
FPM/FKM |
|
Venting of the media chambers |
■ Stainless steel 316L ■ Hastelloy C276 |
|
Diaphragm element |
■ Stainless steel 316L ■ Hastelloy C276 |
Material (in contact with the environment)
Other versions
■ Oil- and grease-free
■ For oxygen, oil- and grease-free
■ For hydrogen
■ Silicone-free
■ Per NACE MR 0175 / ISO 15156, use in H₂S-containing environments in oil and gas production
■ Per NACE 2) MR 0103 / ISO 17945, metals resistant to sulfide stress cracking
■ With pre-volume deflagration flame arrester 3) for connection to zone 0 (EPL Ga)
■ Differential pressure gauge with switch contacts, high overload safety,
■ Differential pressure gauge with electrical output signal, high overload safety
Address
Hetai Road No.112, Hetai Village, Xinzhuang Town, Changshu City, Jiangsu Province, China
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