Technical data

Regulators
Flowmeters
Regulators
Series 30™ Single Stage Flow Gauges
57
Flow SCFH (30 PSIG Inlet)
Stock No. CO
2
Air Argon Helium Nitrogen Hydrogen Oxygen Orifice Diameter
H1400-20 20 24 21 65 25 91 23 .026
H1400-30 30 37 32 100 38 140 35 .032
H1400-40 39 48 41 129 49 182 46 .037
H1400-50 50.5 62 53 167 63 234 59 .042
FEATURE BENEFITS
• Compact Design
• Machined Brass Body
• Neoprene/Nylon Diaphragm
• 2” (51mm) Diameter Gauges
• Protective Inlet Filter - Sure-Seat™
• Self Re-Seating Pressure Relief Valve
• 0 - 4000 Inlet Gauge
• 10 - 50 SCFH Delivery Gauge
3 Year
Limited Warranty
H1400-20
31-50-580
31-50-580-6
FIXED FLOW ADAPTORS - H1400 Series
Designed for welding operations or other applications requiring fixed gas flows. Installs in regulator outlet or directly on
30 PSIG pipeline outlet without regulator. Set regulator at 30 PSIG and be assured of correct gas flow. Inlet filter
protects orifice from debris. F.M. thread size 5/8” (16mm) - 18 U.N.F. Male thread size 1/4” NPT (6mm).
Regulator Warranty Information
3 – Year Limited Regulator Warranty:
Smith Equipment warrants to the purchaser, all Smith Equipment Gas Regulators against defects in materials and workmanship
(parts and labor) for a period of three years. All metallic regulator components are warranted for a period of three years
(parts only).
NOTE: Disposable cylinder regulators are warranted for a period of one (1) year.
The warranty period is established by the manufacturer's date
code which is imprinted on the product or date of purchase if
proof of purchase date is provided by the purchaser with the
warranty claim. Smith Equipment makes no other warranty of
any kind, expressed or implied, including without limitation no
warranty of merchantability or fitness for any purpose. During
the warranty period, Smith Equipment agrees, at its option,
to repair, replace or refund the purchase price of any product
found defective upon inspection by Smith Equipment. This is
the sole and exclusive remedy of the purchaser and the
sole and exclusive liability of Smith Equipment, whether in
contract, in tort, under any warranty, in negligence or
otherwise. Smith Equipment shall not be liable under any
circumstances for any incidental, consequential, special,
indirect or other damages, or for loss of use, revenue or
profit even if Smith Equipment has been advised of the
possibility of such damages. The warranty and remedies
provided herein shall not apply if a product is damaged by
accident, abuse or misuse, if a product is modified in any
way except by personnel authorized by Smith Equipment,
or if anything except genuine Smith Equipment replacement
parts, tips, and consumables are used with the equipment.
Stock No. Gas Used
Flow Range Inlet Connection Outlet Connection
31-50-580 Argon 10-50 SCFH CGA 580 5/8” - 18RH
Internal
31-50-580-6*
31-50-320
CO
2
0-50 SCFH CGA 320
NOTE: Out orifice diameter .032"
* Includes 6’ (1.8m) hose with inert hose connections.