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Fisher Types 627W and 627WH | High-Pressure Direct-Operated Liquid Regulators

The Fisher Types 627W and 627WH are rugged, direct-operated, spring-loaded regulators specifically engineered for liquid service. While the broader 627 family is well-known for gas regulation, the W and WH variants are optimized for the higher densities and unique hydraulic challenges of liquid applications. These regulators are ideal for pressure reduction in high-pressure oil and water systems, providing a durable and fast-responding solution for industrial and energy-sector fluid management.
Brand: Fisher
Availability: In Stock
Origin: China

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Key Benefits and Advantages

  • Specialized Liquid Service Design: Unlike standard gas regulators, the 627W and 627WH feature internal trim and materials designed to withstand the velocity and potential cavitation effects associated with liquid flow. The 627WH (High Pressure) variant is specifically reinforced for even more demanding setpoints.

  • Tight Shutoff Capability: To prevent downstream pressure creep during no-flow conditions, these regulators utilize high-quality soft-seat materials. This ensures a bubble-tight shutoff, which is critical for protecting downstream equipment and maintaining system integrity in liquid headers.

  • Stainless Steel Construction: For applications involving corrosive fluids or harsh environments, these series are available in full stainless steel constructions. This provides excellent resistance to chemical attack and atmospheric corrosion, extending the service life of the valve.

  • In-Line Maintenance: The 627W and 627WH are designed for ease of service. The trim parts, including the orifice and valve disk, can be inspected or replaced without removing the regulator body from the pipeline. This significantly reduces downtime and maintenance labor costs.

  • Rugged Construction: Built with the same legendary durability as the rest of the 627 “Big Joe” family, these regulators feature heavy-walled bodies and robust internal components. They are designed to operate reliably in the vibration-prone and high-stress environments of industrial pumping stations and oilfields.

  • Versatility in Application: With multiple body sizes and a wide range of spring options, these regulators can be tailored to meet a diverse array of liquid pressure control requirements across different industries.

Technical Properties

  • Operation: Direct-operated and spring-loaded.

  • Service: Liquids (Water, Industrial Oils, Liquid Hydrocarbons).

  • Body Sizes: NPS 3/4, 1, and 2 (DN 20, 25, and 50).

  • End Connections: Available in NPT threaded or flanged connections.

  • Pressure Ratings: Designed for high-pressure industrial liquid systems.

  • Materials: Available in Ductile Iron, Steel, or Stainless Steel bodies with various elastomer options for chemical compatibility.

Field of Application

The 627W and 627WH are the preferred choice for liquid pressure reduction where space is limited and reliability is paramount.

Primary Industries and Uses:
  • Oil and Gas Production: Regulating high-pressure liquid bypass lines on separators and chemical injection skids.

  • Industrial Manufacturing: Managing water or lubricant pressure for large-scale machinery and cooling systems.

  • Refining and Petrochemical: Providing stable pressure for secondary liquid process lines.

  • Agriculture: Controlling pressure in high-pressure irrigation and liquid fertilizer distribution systems.

Specification

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Configured Models

Available Certificates

We provide comprehensive documentation support strictly mapped to your model codes. From standard Q4 (Calibration Certificate), Q8 (Material Traceability), and P1 (Hydrostatic Testing) to specialized Chamber of Commerce (COI) authentication, we ensure every detail meets your project’s compliance and traceability requirements.

FAQ

Q: Which brands and models do you offer?

A: We specialize in industrial automation instruments such as pressure transmitters and flow meters from brands like Rosemount, Yokogawa, and Micro Motion. Additionally, we can help source other related products globally based on your specific requirements.

A: We offer global shipping, covering Southeast Asia, the Middle East, Europe, South America, North America, and many other regions. Specific logistics solutions can be customized based on customer requirements.

A: The lead time for product delivery varies depending on the product type, quantity, and shipping method. Our sales team will provide you with an estimated delivery time frame based on your specific requirements.

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