Epsilon™ Dry Disconnect Couplings

Features

• Available in ¾”, 1”, 1½”, 2” and 3”
• Available in stainless steel and Hastelloy®
• Available with end connections complying to ANSI and DIN standards.
• FDA-compliant seal materials, TFM or PFA Next generation PTFE with best combination of temperature ranging from -22°F (-30°C) to 450°F (230°C), sealing, and sliding characteristics.
• Constructed to handle pressure of 435 psi (30 Bar) and temperatures up to 450°F (230°C)
• Spring-energized TFM or PFA U-cup sealing
  • A spring-energized stem and face and flange seal provide initial sealing. The spring supplies all the load required for sealing when the media pressure is too low to fully actuate the lips of the seal. Testing confirms the low spillage and emission specifications are still achieved after 2,000 cycles.
• Polyurethane dust cap or Stainless Steel pressure cap
  • Used to protect the ball from damage and debris when coupling is closed and disconnected.
• Male and female lug and flange connection interfaces
  • Ramped lug and flange interfaces are first aligned and then connected with a push, followed by a quarter (90°) turn. This “instant” connection method is done by hand without tools in order to create compression on the critical interface seal.
• Independent and multi-level safety interlocks
  • Epsilon technology involves five independent and redundant mechanical interlocks. They require deliberate sequential action by users, thereby eliminating unintentional spills and catastrophic chemical releases that threaten worker safety and the environment.
• Approved/listed for pressure service through a comprehensive set of international agencies

Benefits

• Dry Disconnect Reliability – Low spill face seal reduces amount of loss upon disconnect, specified to less than .40 ml spillage for the 2” coupling (2000 cycles test average 0.6 ml) and less than 1/10th of a teaspoon (half an eyedropper).
• Enhanced Environmental Compliance – Positive shut-off of coupling halves eliminates line contamination and accidental release of potentially hazardous fluids into the environment during connection and disconnection.
• Full Flow – Straight-through flow path provides unrestricted flow in either direction, minimizing pressure drop. Unrestricted flow path provides less than 1psi pressure drop at 150 GPM.
  • A convex ball nests in a concave ball to virtually eliminate any cavity between the mating halves. The positive shutoff ball valves, and the absence of a cavity between them, minimize chemical loss when the coupling is disconnected. Each half is an independently operated, positive shut-off ball valve that is controlled by manually rotating the valve handles. The straight-through Epsilon valve design also provides unrestricted, high flow in either direction and low pressure drop. All metal wetted components are 316 stainless steel or Hastelloy®.
• Unparalleled Safety – Multiple safety interlocks eliminate unintentional spills and catastrophic chemical releases that threaten worker safety and the environment. Epsilon safety interlocks force the valves to open and close only with a deliberate action, preventing accidental opening of the valve.
• Prevents Cross-Contamination – Optional keyed couplings mechanically lock out and isolate transfer lines.
  • For extremely critical operations, Epsilon offers the unique keyed interface which locks out and isolates transfer lines, preventing cross-contamination.
• Easy Maintenance – Epsilon was not only engineered for easy operations, but also for quick replacement of the transfer seal without any lockout. No special tools are required for replacement of seals.

Technical

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Dimensions

Performance Characteristics

Pressure Drop vs. Flow Chart

Order Guide

Options

• Ultra Low Spill Face Seal
  • This seal reduces the amount of spillage at disconnect to .2 cc. This seal is not pressure assisted and should only be used for applications lower than 100 psi.
• Cavity Filled
  • Designed to reduce the possibility of contamination by entrapment of process fluid in the void normally found behind the ball and the valve body. Ideal for applications where cross-contamination and cleanliness is a concern. Back side of the valve balls are bored for efficient cleaning.
• Keyed Couplings
  • For extremely critical operations, Epsilon offers the unique keyed interface which locks out and isolates transfer lines, preventing cross-contamination.

Videos

Epsilon Low-Spill Coupling System

Epsilon is a low spill coupling, based on a double ball valve system integrating a sophisticated safety design. Beyond the common advantages of a ball valve design, Epsilon provides for product flow through an unrestricted flow path and double shut-off reliability in the coupling connection.