SJ Gauge threaded pressure gauge with welded diaphragm seal

Threaded Connection, Welded

Model: DIT-W

Fully welded design, without additional sealing
For hot, hazardous or toxic media
Mostly used in oil, gas and petrochemical industries

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 DIT-W welded diaphragm seal features a fully welded design without any additional sealing elements, making it ideal for hot, hazardous, or corrosive media. Its robust construction ensures stable pressure transmission and is widely used in oil, gas, petrochemical, and other high-safety industrial processes. Available in multiple thread sizes and materials (304/316/316L stainless steel, Hastelloy C276, Tantalum, Monel 400, Titanium, etc.), it can be paired with pressure gauges or transmitters, offering durability, reliability, and easy maintenance even in harsh environments.

Specifications

Diameter	48 mm, 70 mm, 82 mm, 90 mm
Process connection	Male, female, union nut and loose threaded 1/4, 3/8, 1/2, 3/4, 1 PT, G, NPT, M
Instrument connection	1/4, 3/8, 1/2 PT, G, NPT, M
Scale ranges	48 mm Pressure Gauge: 0 ... 4 bar to 0 ... 40 bar Transmitter: 0 … 4 bar to 0 ... 40 bar 70 mm Pressure Gauge: -1 ... 3 bar, 0 ... 2.5 bar to 0 ... 60 bar Transmitter: -1 ... 1 bar, 0 … 0.3 bar to 0 ... 60 bar 82 mm Pressure Gauge: -1 ... 60 bar 90 mm Pressure Gauge: -1 ... 1.5 bar, 0 ... 0.6 bar to 0 ... 60 bar Transmitter: -1 ... 0.6 bar, 0 … 0.1 bar to 0 ... 60 bar or all other equivalent vacuum or combined pressure and vacuum ranges
Material	Body: 304 SS, 316 SS, 316L SS, Dual Phase Steel, Hastelloy C276, Tantalum, Monel 400, Titanium, Nickel 200 Diaphragm: 316L SS, Hastelloy C276, Tantalum, Monel 400, Titanium, Nickel 200
Medium temperature	0°C ... 80°C, 81°C ... 200°C, 201°C ... 400°C
Others	Welded with instrument, flush port