4" bayonet bezel diaphragm pressure gauge

FOB Reference Price:Get Latest Price
$79.90 - $180.00 / Piece | 10 Piece/Pieces (Min. Order)
+/-1% (ASME B40.1 Grade 1A)
Connection Location:
Lower back mount LM
Dial Diameter:
4" 100mm
pressure gauge manometer pressure gauge diaphragm pressure gauge
Lead Time:
Quantity(Pieces) 1 - 1000 >1000
Est. Time(days) 30 Negotiable
Customized logo (Min. Order: 10 Pieces)
Customized packaging (Min. Order: 10 Pieces)


Graphic customization (Min. Order: 10 Pieces) Less
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Quick Details
Place of Origin:
Jiangsu, China
Brand Name:
Model Number:
304 SS
Pressure Range:
15 to 15000 psi, vacuum or compound
316 SS
For systems with high cycle rates
+/-1% (ASME B40.1 Grade 1A)
4"(100mm),Customized Available
Connection thread:
NPT, BSP, BSPT, PT, ZG, or other special specification
Diaphragm Pressure Gauge
Polycarbonate,and Safety glass lens available
Product Name:
Polycarbonate Windows All SS Diaphragm Seal Pressure Gauge Manometer
Supply Ability
Supply Ability:
500000 Piece/Pieces per Month
Packaging & Delivery
Packaging Details
White box, 12pcs/master carton
Lead Time :
Quantity(Pieces) 1 - 1000 >1000
Est. Time(days) 30 To be negotiated
Detail Information
4"(100mm) Polycarbonate Windows All SS Diaphragm Seal Pressure Gauge Manometer
Model GMB004-1(Diaphragm Pressure Gauge)
DescriptionDiaphragm Pressure Gauge
ApplicationFor systems with high cycle rates, environments with continuous vibration or shock, and processes with problematic pressure surges and spikes
Size 4"(100mm), and Customized Servic Available
Pressure Range 15 to 15000 psi, vacuum, and compound
Socket Heavy-duty 316 SS lower mount
Connection Thread NPT, BSP, BSPT, PT, ZG, or customized threads other special specification
Tube 316 SS
Case 304 SS
LiquidGlycerin, silicone, oil fillable, or without liquid 
Bezel304 SS removable
Window(Lens) Polycarbonate,and Safety glass lens available
Accuracy  +/- 1%(ASME B40.1 Grade A) ;+/-2-1-2%(ASME B40.1 Grade A)
Ambient Temperature-25℃ to 55℃; Relative humidity below 80%
Product Overviews


Production Flow





ALF received the following certificates and patents:

  • ISO9001:2015 manufacture of pressure gauge and door lock
  • UL listing: use no oil pressure gauges
  • CSA certificate: lead free pressure gauge
  •  ANSI Grade 3: entry door lock
  • High-Tech Enterprise (Jiangsu Province)
  • 32 different patents on products and processes


Our Company

Kunshan ALF Machinery & Instrument Co. Ltd. was founded in Shanghai in 1998.  With a production base of 70,000 square meters located at Huaqiao Town, Kunshan, Jiangsu province, ALF is specialized in the production and export of pressure gauge and door lock.ALF look forwards to strengthen our cooperation with customers and suppliers and enter a fast-growth lane through training key personnel, fasten technical developments, improving product quality, and enhancing customer satisfaction.  


Packing and shiping