Gas Sampler: The Welker Engineering Gas sampler is designed to be mounted on the pipeline close to the sample point. The gas sampler action that is self-purging to taking each sample. The sampler is o positive displacement pump so the sample is taken at pipeline pressure and pumped into the sample container. The sample is unaffected by ambient conditions and is also capable of building pressure in a standard sample cylinder. The sample is also capable of pumping a sample into a sliding piston sample container

The gas Sampler may be timed pneumatically or electronically and is capable of taking samples on a timed basis or proportional to the flow. The timing of the gas Sampler may be interfaced with orifice meters, turbine meters, or positive displacement meters. In production operations, the sampler may be pulsed by level controls or dump valves.

Control Valves: The Welker Jet control valve is manufactured in three styles. The standard body fits into conventional piping configurations, an insert style fits between to standard pipe flanges, and the new top entry style, for ease of maintenance. The control of the Welker Jets is accomplished by the use of pressure or differential controller. The Welker Jet, because of its expanding rubber plug control element, has infinite range, positive shut-off, and pressure control. Regardless of the size of the control valve, the features remain the some.

The control valve's design offers unlimited flexibility. The straight through flow path and high recovery design makes the Welker Jet applicable in all types of gas control installations.

Instrumentation Panels: Welker Engineering manufactures instrumentation panels for pneumatic supply for control systems and instrument supplies.The systems employ the filters, regulators, relief's, and automatic liquid dumps built specifically for gas service.

Automatic Insertion Devices: Welker Engineering manufactures several patented insertion devices. These insertion devices con insert pipelinedevices while the line is operational and pressurized. The AlD's con be designed for pressures ranging from 5 to 10,000 psi. Greater pressure ranges are available upon request.

Light Liquid Hydrocarbon Sampler: The LS-7 Light Liquid Hydrocarbon sampler is a skid mounted sampling system. The system consists of the sampler, sliding piston sample container and the back pressure cylinder.

The LS-7 is used for EP mixes, propane, butane, natural gasoline, and condensate. High vapor pressure products when sampled must be maintained of pipeline pressure to preserve the liquid phases of the products. The LS-7 has a mixing system to ensure a uniform mixture prior to sample draw off and transport. The LS-7 system is capable of maintaining all products in their original phase.

Sliding Piston Sample Containers: The Welker Engineering Sliding Piston sample Contoiner was designed to meet the needs of the person who is sampling a product whose state must be maintained. A product, be it gas or liquid when caught, has a tendency to change from a liquid to gas or vice-versa, the product may be sampled in the sliding piston cylinder and maintained as it is in the pipeline of the time the sample is caught. The Sliding Piston Sample Container is available with a vortex mixer that offers complete mixing capabilities, as well as other mixer types.

Visible Water Analyzer "Water Watcher": The "Water Watcher" incorporates o high pressure sight glass in the bottom of the constant pressure sample container After a sample is drawn into the sample contained the piston on the sight glass is retracted to allow the operator to see and measure if there is water in the product.

High Vapor Pressure Crude or Condensate Sampilng System: Sampling systems for high vapor pressure systems require a unique sampling system designed and built by Welker Engineering Company. The sampling system includes the LS probe style sampler, the LS-7 sampling container and a timing mechanism to meet the customers needs.

Crude Oil Sampler: The Crude Probe Samplers are built to insert directly into the flowing stream to take its sample. The Crude Probe sampler is a positive displacement pump built ground the Vanishing Chambers sample Head to take the sample under isokinetic conditions and pump that sample into the sample container. The LSM series, because of its design, is unaffected by waxy, dirty or high viscosity products. The sampler is capable of cleaning itself of fiber, sand, wax or heavy product accumulation.

The sampler system includes as separate items the sampler, a timer or interface, a sample container, on actuator system and transport containers.

Crude Oil Sampilng Control Systems: The control package for sampling proportional to flow will interface with existing metering or Welker can supply an auto insertion turbine meter for pacing the sampler and checking the flow. A full range of flow controls, alarms and outputs may be supplied with the control package.

Bite Checker: The Bite Checker is on outlet sensing unit for samplers and pumps. The Bite Checker may be made to sense a specific volume and with a contact closure or 4-20 MA output, send the output signal to on interface to count, alarm or control the sampler or pump.

Instrumentaion Equipment: Welker manufactures a complete line of sample conditioning products for complete sample handling.

Instrument Regulators: The IR series Instrumentation Regulator is designed for the gas industry. Built of 316 stainless steel, the regulator is designed for 5,000 psi inlet and a number of outlet ranges. The IR is specifically built for gas instrument supply is areas where corrosion is a problem.

Automatic Insertion Regulator: The IRA is built for sample conditioning upstream of a chromotograph or calorimeters. This style of regulation uses the kinetic energy to help condition the sample and the unique ability of taking the pressure reduction in the flowing stream. This style may also be inserted into the pipeline under pressure through a full open valve.

Instrument Relief Valves: Relief valves for sever service. 1/4" NPT 316 stainless steel construction. Low pressure and high pressure service.

Filter Dryers and Filters: The "F" series of filter and filter dryers was designed expressly for gas service. The F-4 and F-5 filter dryer is built to filter and dry instrument gas supplies for controllers, pump and timer supply and general instrumentation. The F-4 and F-5 have "spin on" replacement cartridges for easy maintenance. Other Welker filters cover a wide range of applications.

Dump Valve: The duo-seal dump valve is built to withstand severe service. The twin seals keep vend cuffing and wire crowing of the seat to a minimum.

Automatic liquid Dump: The ALD is used in instrument systems where liquid carryover is a problem. The ALD collects liquid from the supply system and automatically dumps the liquid from the system. The dumping action is so gentle, that there is no indication of pressure differential. The ALD maybe used on orifice lead lines, drain ports on orifice finings or other locations where liquid accumulation is a problem.

Winders: Welker winders are attached to a standard Rockwell clock to allow the clock to be wound without removing the charts.

Fiberglass Enclosures: Welker Engineering manufactures fiberglass enclosures as small as o timer enclosure or as large as a meter house.

Welker Scope: A new concept for on existing application. Meter tube inspection, compressor inspection. A new means of looking into the pipe without dismantling the structure.

Chemical Injection: Welker Engineering manufactures a wide range of chemical pumps. A simple "Barrel Drainer" style which can be screwed into the top of o 55 gallon drum for methanol, corrosive chemical, and odorization; or as complex as on on-line proportional to flow application for loading tank truck, rail car or pipeline injection.

Flow Measurement: Welker Engineering has the capability of building to customer specifications, gas measurement skids, gas regulation and control skids, light liquid hydrocarbon measurement skids, and LACT units.

New Products: Your problems are our opportunities.