SRWD – Soft Seal for Cutting Rings

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SRWD Soft Seal for Cutting Rings: 16+ Sizes & Proven Leak Protection

Prevent fluid leaks in high-pressure 24° DIN 2353 tube fittings with premium Viton FKM elastomeric seals.
Engineered for extreme vibrations, thermal cycling, and heavy industrial hydraulic applications.

Last updated: September 2026

SRWD Soft Seal for Cutting Rings SRWD Soft Seal for Cutting Rings - Size Chart SRWD Soft Seal for Cutting Rings Assembly

What is an SRWD Soft Seal for Cutting Rings and How Does it Work?

Direct Answer: An SRWD Soft Seal for Cutting Rings is a specialized elastomer ring constructed from Viton (FKM/FPM) that fits directly into 24° cone bite-type tube fittings compliant with ISO 8434-1 / DIN 2353 standards. While standard metal cutting rings provide mechanical grip, the elastomeric SRWD soft seal creates a permanent primary barrier against fluid leakage caused by mechanical vibration, pressure pulsation, or high thermal expansion.

Traditional metal-to-metal fitting seals can develop micro-gaps under aggressive operating conditions. Incorporating a soft seal ring compensates for surface imperfections or minor tube misalignment, ensuring zero-leak performance up to 500 bar (7,250 PSI) depending on the series and tube size.

Complete SRWD Soft Seal for Cutting Rings Size Chart & Specifications

Direct Answer: SRWD soft seals are available in 16 standardized metric sizes covering outer tube diameters from 6mm to 42mm across Light (L) and Heavy (S) DIN 2353 fitting series. All standard units are fabricated from high-grade Viton (FKM) to support temperature operating limits from -25°C to +200°C (-13°F to +392°F).
Part Identifier Tube Outer Ø (mm) DIN Series Material Grade Operating Temperature Primary Application Features
SRWD 06 VI 6 mm L / S Series FPM / Viton® -25°C to +200°C Precision hydraulic controls & pilot lines
SRWD 08 VI 8 mm L / S Series FPM / Viton® -25°C to +200°C Leak-proof design for compact valve manifolds
SRWD 10 VI 10 mm L / S Series FPM / Viton® -25°C to +200°C Standard industrial fluid power return circuits
SRWD 12 VI 12 mm L / S Series FPM / Viton® -25°C to +200°C Vibration-resistant seal for mobile machinery
SRWD 14 VI 14 mm S Series FPM / Viton® -25°C to +200°C Heavy-duty high-pressure hydraulic pressure lines
SRWD 15 VI 15 mm L Series FPM / Viton® -25°C to +200°C Light series fluid distribution pipes
SRWD 16 VI 16 mm S Series FPM / Viton® -25°C to +200°C High-pressure hydrostatic drive circuits
SRWD 18 VI 18 mm L Series FPM / Viton® -25°C to +200°C Chemical and synthetic oil resistant lines
SRWD 20 VI 20 mm S Series FPM / Viton® -25°C to +200°C Large tube heavy equipment hydraulic systems
SRWD 22 VI 22 mm L Series FPM / Viton® -25°C to +200°C Thermal stable low-pressure return piping
SRWD 25 VI 25 mm S Series FPM / Viton® -25°C to +200°C Industrial hydraulic press & mill equipment
SRWD 28 VI 28 mm L Series FPM / Viton® -25°C to +200°C Durable seal for manufacturing plant lines
SRWD 30 VI 30 mm S Series FPM / Viton® -25°C to +200°C Maximum reliability heavy industrial circuits
SRWD 35 VI 35 mm L Series FPM / Viton® -25°C to +200°C Large diameter low-pressure suction lines
SRWD 38 VI 38 mm S Series FPM / Viton® -25°C to +200°C Heavy series main pump feed line protection
SRWD 42 VI 42 mm L Series FPM / Viton® -25°C to +200°C Largest standard size for high-volume piping

Why Upgrade DIN 2353 Fittings with Viton FKM SRWD Soft Seals?

Direct Answer: Upgrading DIN 2353 cutting ring fittings with Viton FKM SRWD soft seals provides 5 core benefits: enhanced leak tightness, wide thermal resistance (-25°C to +200°C), superior resistance to synthetic hydraulic oils, resistance to pressure impulses, and rapid retrofitting without altering existing tubing.

In demanding environments such as pharmaceutical manufacturing facilities, industrial extrusion mills, and municipal emergency service vehicles across Connecticut, hydraulic failure results in costly unplanned downtime or safety hazards. Integrating the SRWD Soft Seal for Cutting Rings ensures an elastomeric seal is present even if mechanical vibrations cause minor fitting nut loosening over time.

Download Official Technical Specifications PDF

Step-by-Step Installation & Maintenance Guidelines for SRWD Soft Seals

Direct Answer: To install an SRWD soft seal, inspect the 24° cone fitting body to ensure it is free of metal burrs or dirt. Lightly coat the Viton seal with clean hydraulic fluid, seat it firmly onto the cutting ring shoulder, hand-tighten the union nut, and apply final torque according to standard ISO 8434-1 specifications.

Recommended Installation Procedure

  1. Inspection: Verify that tube squareness is within 0.5° and deburr both inner and outer tube edges.
  2. Cleaning: Remove debris, swarf, or corrosion from the fitting inner 24° cone socket.
  3. Lubrication: Apply a light drop of mineral or synthetic hydraulic oil to the Viton SRWD seal ring.
  4. Seating: Position the SRWD soft seal ring carefully into its designated recess on the cutting ring assembly without twisting.
  5. Torque Tightening: Tighten the union nut until an abrupt rise in torque is felt, followed by a 1/4 turn to secure final seating.

Backed by Hands-On Mechanical Expertise

At Hydraulic Hoses Near Me, our shop operations are managed by a dedicated partnership:

  • ASE Master Gas & Diesel Mechanic: Providing expert guidance on thread identification, metric fitting series matching, and hydraulic pressure tolerances.
  • Local Firefighter & EMT: Bringing first-responder urgency to emergency hose repairs and critical component replacements.

Learn more about our equipment repairs and community partner sponsorships, or check our full hydraulic hose repair services in Connecticut.

Watch: How DIN 2353 Soft Seal Assemblies Prevent Hydraulic Leaks

Discover how soft sealing cutting rings function inside 24° cone fittings under high pressure and severe vibration.

Frequently Asked Questions

What is an SRWD Soft Seal for Cutting Rings?

The SRWD Soft Seal for Cutting Rings is an elastomer seal made of Viton (FKM/FPM) designed to fit into 24° DIN 2353 cutting ring tube fittings. It acts as a primary sealing element that prevents fluid leakage caused by vibration, pressure spikes, or thermal expansion.

What temperature range can Viton FKM SRWD soft seals handle?

SRWD soft seals constructed from FPM/Viton elastomer operate safely in temperatures ranging from -25°C to +200°C (-13°F to +392°F), making them suitable for high-temperature hydraulic systems and aggressive synthetic fluids.

Are SRWD soft seals compatible with both Light (L) and Heavy (S) series fittings?

Yes. SRWD soft seals are manufactured in precise metric sizes ranging from 6mm to 42mm tube outer diameters, covering both Light (L) and Heavy (S) DIN 2353 cutting ring series.

Can SRWD soft seals be retrofitted into existing cutting ring connections?

Yes. Existing DIN 2353 metallic bite-type fittings can easily be upgraded by inserting the matching SRWD soft seal onto the tube profile before tightening, providing instant secondary leak protection without replacing the entire fitting body.

Order SRWD Soft Seals in New Milford, CT

We stock the complete line of metric SRWD soft seals and DIN 2353 cutting ring fittings for immediate shop pickup or fast mobile site delivery.

Call (860) 717-4354 for Immediate Orders