SJ Gauge pressure gauge fitted with an upper metal diaphragm seal

Flanged Connection, Upper Metal, Lower Plastic

Model: DIF-USLP

A metal upper body that connects to the instrument is tight and durable
Plastic lower body can protect pressure instruments from corrosive, contaminated or viscous media
Suitable for paint, electroplating, sewage treatment and the paper industry

Responsive after-sales service / Customizable
High quality / One-year warranty
Product images are for reference only. Final specifications are based on the confirmed order.

Description

The DIF-USLP features a hybrid structure with a durable metal upper body that ensures a secure and stable connection to pressure instruments, paired with a corrosion-resistant plastic lower body that protects gauges and transmitters from aggressive, contaminated, or viscous media. This design makes it ideal for applications such as paint production, electroplating, wastewater treatment, and the paper industry — environments that demand strong chemical resistance and easy maintenance. Available in various flange standards and materials with optional metal or PTFE diaphragms, the DIF-USLP provides a reliable and long-lasting pressure measurement solution for chemical and environmental processing systems.

Specifications

Type of process connection	ANSI/ASME B16.5, JIS, DIN 2527
Nominal diameter	1/2", 3/4", 1", 1 1/4", 1 1/2", 2", 3", 4"
Instrument connection	1/4, 3/8, 1/2 PT, G, NPT, M
Scale ranges - metal diaphragm	Pressure gauge: 1/2", 3/4": 0 ... 4 bar to 0 ... 25 bar 1" ... 1/4": -1 ... 3 bar, 0 ... 1.6 bar to 0 ... 25 bar 2": -1 ... 1.5 bar, 0 ... 0.6 bar to 0 ... 25 bar 3", 4": -1 ... 0.6 bar, 0 ... 0.6 bar to 0 ... 25 bar Transmitter: 1/2", 3/4": 0 ... 0.4 bar to 0 ... 25 bar 1" ... 1 1/4": -1 ... 0.6 bar, 0 ... 0.25 bar to 0 ... 25 bar 2": -1 ... 0.6 bar, 0 ... 0.1 bar to 0 ... 25 bar 3", 4": -0.05 ... 0.05 bar to 0 ... 25 bar or all other equivalent vacuum or combined pressure and vacuum ranges
Scale ranges - PTFE diaphragm	Pressure gauge: 1/2", 3/4": -1 ... 5 bar, 0 ... 2.5 bar to 0 ... 25 bar 1" ... 1 1/4": -1 ... 1.5 bar, 0 ... 1.6 bar to 0 ... 25 bar 2": -1 ... 0.6 bar, 0 ... 0.6 bar to 0 ... 25 bar 3", 4": -1 ... 0.6 bar, 0 ... 0.1 bar to 0 ... 25 bar Transmitter: 1/2", 3/4": -1 ... 3 bar, 0 ... 0.4 bar to 0 ... 25 bar 1" ... 1 1/4": -1 ... 0.6 bar, 0 ... 0.1 bar to 0 ... 25 bar 2": -0.05 ... 0.05 bar to 0 ... 25 bar 3", 4": -0.05 ... 0.05 bar to 0 ... 25 bar or all other equivalent vacuum or combined pressure and vacuum ranges
Material	Upper body: 304 SS, 316 SS, 316L SS, Duplex SS, Hastelloy Alloy, Tantalum, Titanium, Monel 400 Alloy, Nickel 200 Lower body: PP, PVC, PVDF, PTFE Diaphragm: PTFE, Hastelloy Alloy, Titanium, Tantalum, Monel 400 Alloy, Nickel 200, Silicone, Viton®, 316L+PTFE, 316L+PTFE Coating
Medium temperature	0℃ ... 60℃ (PVC), 0℃ ... 80℃ (PP), -40℃ ... 120℃ (PVDF), -200℃ ... 240℃ (PTFE)
Others	Welded with instrument, capillary