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Durham Geo TR-697 SRX-LP Equalization Exhaust ("E" Valve)

Price $131.98
Condition:
New
Minimum Purchase:
1 unit
SKU:
V042.TR-697

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TR-697 SRX LP Equalization Exhaust ("E" Valve) | DGSI Slope Indicator Submersible Pumps

The Equalization Exhaust Valve (“E” Valve for short) maintains the standard activation level in wells that have high vacuum stress applied to them.

Applications

The Equalization Exhaust Valve ("E" Valve for short) is placed inside the casing below the well seal but above the highest anticipated liquid level. The valve allows the high pressure pump exhaust to be released to the atmosphere and allows the low pressure exhaust to be equalized to the partial vacuum in the well bore via the small 0.031" orifice hole. The liquid level that can be achieved in the well would be the normal pump activation level, approximately 10 inches below the top of the SRX pump's head.

Pros/Cons

  • The down side of using this valve is a small quantity of atmospheric air is released into the well, diluting the landfill gas with each pump cycle.
  • The up side is that there is only one moving part and there is no operator adjustment.

TR-697 Equalization Exhaust “E”-Valve Specifications

  • Material: Stainless steel
  • Range: 0 - 125 psi (Max. 150 psi)
  • Fittings: ½ in O.D. push-to-connect

SRX LP Leachate Pumps

  • The SRX LP is a proven landfill pump based on a simple, innovative design and built with field-tested components. The result: a reliable pump to meet the harsh landfill environment.
  • The SRX is an air-powered pump used to extract leachate or gas condensate at variable rates equal to the well recharge.
  • Pump flow rates are up to 9.5 gpm and temperatures up to 250°F.
  • In wells under vacuum with the pump exhaust vented outside the well seal, the SRX pump can maintain the normal draw-down level when the air-exhaust line is equipped with the optional “E”-valve (part # TR-697) located below the well seal.

Better Value

  • More Uptime:
    • Reliable
    • Simple Routine Maintenance
  • Competitive Price
  • Easy Replacement for Existing Pump
  • Few Parts – Low Inventory

Advantages

  • Advanced, positive-sealing air valves with built-in filtration
  • Tolerant of high temperatures
  • Complete disassembly with only one wrench
  • All-stainless-steel body
  • Domed bottom to prevent hang-ups during installation
  • Flotec™ syntactic foam float
  • Lightweight pump
  • CE and ATEX compliant

Applications

Applications for the SRX Leachate Pump include

  • Landfill Pumps for Leachate Pumping and Gas Condensate Pumping in Landfills
  • Pneumatic pumps for use in 4-inch and larger-diameter wells up to 200 ft.
  • Pneumatic pump for leachate and gas condensate

Specifications

SRX LP Pump Construction 

  • Stainless steel, Type 304: Pump body, discharge tube
  • Stainless steel, Type 303: Pump head, bottom intake valve,
  • assembly control rod, control linkage assembly
  • Stainless steel, Type 316: Hose and tubing barbs
  • Hydlar (Nylon/Kevlar® composite): Control rod bushing
  • Nylon®: Discharge check valve ball
  • Buna-N®: Intake check valve ball
  • Viton®: O-ring seals, air inlet ball valve
  • Syntactic foam: Float
  • Neodymium Iron: High temperature magnets (250 °F)

Selection Table For SRX Leachate Pumps

Part Number & Model | Nominal Size | Pump OD | Pump Length | Volume per Cycle1 | Min. Submergence (in) | Pump Weight (lb) | Max. Flow Rate2 (gpm) | Air Valve Filtration

  • TR-970 SRX LP | 4.0” | 3.5” | 39.0” | 0.2gal | 39.0” | 16.6lb | 5.5gpm | Yes
  • TR-970T SRX LPT | 4.0” | 3.5” | 46.2” | 0.4gal | 29.1” | 16.7lb | 9.5gpm | Yes
  • TR-971 SRX LPS | 4.0” | 3.5” | 44.5” | 0.4gal | 44.5” | 18.0lb | 7.6gpm | Yes

1 Volume (US gal) per pump cycle will vary slightly depending on air pressure supplied to pump, depth of well, etc.
2 Maximum flow rates can vary due to air pressure supplied to pump, depth of well, etc.

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