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Compact, cost-effective composite sampling for clean, dry natural gas
The Welker Essentials™ Gas Sampler is a compact natural gas composite sampler designed for accurate sampling of clean, dry single-phase natural gas. Built with Welker’s Fresh Sample System™ in compliance with API 14.1, the sampler uses a flow-through sample path to purge previous gas from the sample chamber before each actuation, helping deliver fresh, representative samples to the sample cylinder. With durable modular components, a solid stainless steel regulator, cylinder purge system, optional timer/controller, and manual test button, the Essentials™ Gas Sampler provides a low-maintenance sampling solution for remote field locations.
Composite Sampling
Natural gas pipelines — clean, dry single-phase natural gas
Clean, Dry Gas
Consumer-grade natural gas composed almost entirely of methane
Complies With:
Welker Fresh Sample System™
Self-purging design helps ensure a fresh, representative natural gas sample with every sample cycle.
IR-7 Solid Stainless Steel Regulator
Improves durability and helps simplify maintenance in demanding natural gas sampling applications.
Modular Components
Supports easier service and maintenance with a simplified design and minimal active sealing points.
Cylinder Purge System
Helps purge the sample cylinder and sample path to support accurate, representative sample collection.
Manual Test Button
Lets operators test sampler actuation without integrating electronic flow measurement equipment.
Optional Welker 6Tc Timer/Controller
Supports sampling proportional to flow or time without requiring an external power supply.
| Essentials™ Gas Sampler | |
|---|---|
| Materials of Construction | 316/316L Stainless Steel (Wetted Parts), Anodized Aluminum (Non-wetted Parts), Polycarbonate (Enclosure), FKM, PTFE |
| Operating Pressure | 1440 psig @ -20 °F to 120 °F |
| Pipeline Connection | ¾" MNPT |
| Sample Outlet Connection | ¼" MNPT |
| Regulator Output Range | 50–100 psig |
| Insertion Length | 8" |
| Insertion Diameter | ⅜" |
| Electrical Connection | DC 24 V |
| Sample Volume | 0.25 cc |
| Operation | Piston-Operated Pump |
| Enclosure Dimensions | 10" x 8" x 4" (Height x Width x Depth) |
| Features | Polycarbonate Enclosure With Clear Cover |
| Purge Manifold | |
| Solenoid | |
| Welker IR-7 Instrument Regulator With Relief and Pressure Gauge | |
| Welker MPS-2 Micropurge Sample Pump | |
| Options | 4-Way Solenoid Valve (Standard) |
| Manifold for Welker SC Single Cavity Cylinder (Standard) | |
| Welker 4P Sample Frequency Controller | |
| Welker 6Tc Timer/Controller | |
| Welker LE-2SSKO Probe Mounted Liquid Eliminator (Standard) | |
| Industry Standards | GPA 2166, API 14.1, ASTM D5287, IS0 10715 |
Weight and/or dimensions are approximate.
Specifications subject to change without notice.
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