6 Best Pipe Hangers For Supporting Inline Strainer Lines

Supporting an inline strainer line requires more than just holding a pipe in place; it demands an understanding of how weight, vibration, and thermal expansion affect a plumbing run. When a strainer is inline, the added mass and potential for debris buildup create concentrated stress points that standard hangers might not handle. Choosing the right support ensures the piping remains aligned and avoids premature fatigue at the joints. Getting this detail right prevents costly leaks or line failures that can turn a simple maintenance task into a major restoration.

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Anvil Fig 260 Clevis Hanger: The Go-To Choice

The Anvil Fig 260 is the industry standard for a reason. Its adjustable design allows for vertical alignment, which is critical when a heavy strainer creates a slight sag in the line.

The yoke-style construction provides a secure cradle for the pipe. It allows for minor adjustments after the initial installation, ensuring the pipe stays level even if the building structure settles slightly over time.

Because it accommodates a wide range of pipe sizes and materials, it is the primary choice for most commercial mechanical rooms. Avoid over-tightening the nut, as the hanger needs to maintain its ability to support the load without restricting the pipe’s natural movement.

B-Line B3170 Split Ring: Easiest Installation

When space is at a premium or the line is tight against a ceiling, the B-Line B3170 Split Ring shines. It wraps around the pipe, making it ideal for tight-fit scenarios where sliding a pipe through a clevis isn’t possible.

This hanger is best suited for static loads where thermal expansion is minimal. Its low profile makes it a cleaner aesthetic choice for exposed piping runs in commercial or industrial settings.

Be mindful that the split ring provides less flexibility for adjusting slope compared to a clevis. Ensure the mounting point is perfectly placed before tightening, as it offers little room for error once secured.

PHD 130 Series Roller: For Thermal Movement

Thermal expansion is a silent killer of plumbing systems. When lines carry hot fluids, the pipes will grow and shrink, creating friction against rigid hangers that eventually leads to structural stress.

The PHD 130 Series Roller provides a smooth surface for the pipe to glide over during these temperature cycles. It is essential if the strainer is installed near a heat source or on a long, exposed run.

Without this mobility, the pipe may “walk” out of a standard hanger or put excessive torque on the strainer’s threaded connections. If the application involves high-temperature fluctuations, prioritize a roller over a rigid clamp.

Superstrut 703 Clamp: Best For Strut Systems

For projects involving complex mechanical support systems, the Superstrut 703 clamp is the professional’s choice. It integrates directly into metal framing, providing a rigid, high-strength hold that keeps the line locked in place.

These clamps are built for durability and are excellent at mitigating vibrations that could otherwise shake an inline strainer loose. They are specifically designed for high-stress applications where precise spacing is required.

Using these on strut channels allows for modular assembly, which is a major advantage when adding future components to the line. They provide the most rigid connection available, making them ideal for heavy or high-pressure systems.

Anvil Fig 261 Riser Clamp: For Heavy Vertical

Vertical pipe runs carrying heavy strainers require specialized support to prevent the weight from crushing the fittings below. The Anvil Fig 261 Riser Clamp grips the pipe tightly and transfers the load to the floor or support structure.

These are essential at every floor penetration or where the weight of the strainer would cause the vertical line to buckle or slip. They are not designed to support the pipe from the ceiling, but rather to anchor it against the structure.

Install these by ensuring the ears of the clamp are fully engaged and torqued evenly. An uneven installation can lead to a lopsided load, potentially putting stress on the vertical pipe wall.

Caddy Insulated Strut Clamp: Best For Hot/Cold

In climates with significant humidity, condensation is a constant threat to metallic piping. The Caddy Insulated Strut Clamp includes an internal lining that separates the pipe from the metal clamp, preventing galvanic corrosion and limiting thermal transfer.

This is a smart choice for chilled water lines where external moisture can lead to rapid rust and pipe deterioration. By preventing the metal-to-metal contact, it significantly extends the service life of the piping system.

The insulation also helps dampen vibrations from the pump or strainer. It is a slight upgrade in cost, but the protection provided against moisture and electrolysis is well worth the investment in damp environments.

Choosing Your Hanger: Clevis Roller or Clamp?

Selecting the right hanger depends on the movement profile of the line. Clevis hangers are for standard, static support; rollers are for movement; and clamps are for fixed positioning.

Analyze the weight of the strainer unit specifically. If the strainer is cast iron or particularly large, use a heavy-duty clevis that can support the concentrated weight without bending.

If the pipe is subject to high vibration, such as from a nearby pump, prioritize a clamp with a vibration-dampening insert. Mismatched hanger types are a leading cause of vibration-induced leaks at connection points.

Calculating Hanger Spacing & Load Requirements

The rule of thumb is to support pipe lines based on their diameter and material, but always check local code requirements. A heavier strainer unit generally requires a hanger placed closer to the inlet and outlet to offset the additional mass.

Never rely solely on the spacing specified for empty pipe. The weight of the fluid and the debris trapped in the strainer adds significant gravity loads that must be accounted for in the layout.

If the support points are too far apart, the pipe will experience “bowing.” This causes the strainer to sit at an angle, making it difficult to clear debris and putting unnecessary strain on the seals.

Pipe Hanger Materials: Galvanized vs. Stainless

Material choice is dictated by the environment and the potential for corrosion. Galvanized steel is the standard for most dry, indoor mechanical spaces where cost-effectiveness is a priority.

In environments with high moisture, chemical exposure, or salt air, stainless steel is the only reliable option. Do not compromise on this; galvanic corrosion between a zinc-plated hanger and a different metal pipe will compromise the integrity of the line within a few short years.

Always ensure the hanger material is compatible with the pipe material. Using dissimilar metals can trigger a chemical reaction that accelerates degradation, turning a simple support system into a failure point.

Installation Tips for a Rock-Solid Strainer Line

A solid installation begins with precise alignment. Use a level throughout the process to ensure the strainer body is not carrying the weight of the pipe, but rather that the hangers are doing the heavy lifting.

Double-check the torque on all bolts once the system is fully loaded with fluid. Pipes settle under weight, and a final adjustment after the initial fill is common practice for professional installers.

Ensure all support anchors are firmly embedded into structural members, not just light-gauge framing. If the hanger pulls out, the resulting snap-back from a heavy, fluid-filled pipe can cause catastrophic damage to the entire system.

Getting the support right is the difference between a system that runs for decades and one that requires constant re-tightening and patching. By focusing on thermal movement, weight distribution, and environmental compatibility, you ensure that the inline strainer remains a functional component rather than a maintenance burden. Always prioritize professional-grade hardware over quick fixes, as the cost of a mid-pipe failure far outweighs the price of the proper hanger.