Key Parameters (English) The following are typical technical parameters for the Fisher Type 749B Micro-Pressure Regulator. Category Parameter Description / Typical Values Pressure Ratings Maximum Inlet Pressure (P1) 15 psig (1.0 bar). Outlet Pressure (P2) Range Adjustable within very low ranges. Common models cover 2.0" w.c. to 10" w.c. (0.5 to 2.5 kPa) or 5.0" w.c. to 35" w.c. (1.2 to 8.7 kPa). Capacity Flow Coefficient (Cv) Very low, suitable for pilot and instrument flows. Example: Cv ~0.14. Maximum Flow (Natural Gas) Typically up to ~250 CFH (Cubic Feet per Hour), depending on inlet/outlet conditions. Connections & Size Pipe Size 1/4 inch NPT or 1/2 inch NPT inlet and outlet. End Connections Female NPT. Materials Body Material Aluminum. Internal Components Stainless Steel, Synthetic Rubber Diaphragm. Environment Operating Temperature Standard for indoor/outdoor conditions (e.g., -20°F to 150°F / -29°C to 66°C). Applicable Fluids Natural Gas, Propane, Air, and other non-corrosive, clean gases.

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MIDAS-E-ASH3 - Product Brief

Type: High-Sensitivity Arsine (AsH₃) Detector

Key Specs:

Range: 0-1 ppm (0-5 ppm optional)

Accuracy: ±5% FS

Resolution: 0.001 ppm

Response: <90 sec

Robust Design:

IP66 enclosure

-20°C to +50°C operation

ATEX Zone 2 certified

Features:

PH₃/H₂S interference rejection

18-month sensor life

SEMI S2/S8 compliant

Applications:

Semiconductor fabs

GaAs production

Hazardous leak detection

Compliance:

SIL 2 functional safety

Modbus RS-485 output

Equivalents: Honeywell SPM Flex AsH₃, Draeger Polytron 8100 AS

(Word count: 40)

This condensed version:
✓ Highlights ppb-level detection
✓ Specifies SEMI standards
✓ Targets chip manufacturing
✓ Maintains safety compliance