What applications and fluids are compatible with Industrial O-Ring Seal (FKM)?

Manufactured from FKM / Viton® Fluorocarbon Elastomer (75–80 Shore A), this seal is compatible with Synthetic engine oils, gear oils, hydraulic fluids, fuels, acids, alkalis, and aggressive chemicals. It operates reliably across -20°C to +200°C (Peak +230°C) and handles pressures of Up to 100–400 Bar (with Back-up Ring).

How do I accurately measure Industrial O-Ring Seal dimensions?

Use a digital vernier caliper to measure three core dimensions in millimeters (mm): (1) ID = Inner Diameter (shaft diameter), (2) OD = Outer Diameter (housing bore diameter), and (3) THK = Width/Thickness. Match these (ID × OD × THK) values directly with the size chart above.

Why does oil still leak after installing a brand-new seal?

Over 70% of repeat leaks are caused by a worn shaft groove or surface pitting under the seal lip. Installing an ultra-thin stainless steel 'Shaft Repair Sleeve' restores a mirror-smooth counterface (Ra 0.25–0.5 µm) while allowing you to keep the original seal size.

How does FKM material outperform standard commercial rubber?

Engineered with genuine FKM (Viton) fluorocarbon rubber rated for continuous 200°C operation, preventing thermal hardening and chemical swelling, significantly extending Mean Time Between Failures (MTBF) and preventing costly unplanned machine downtime.

How can I place an urgent order or request a corporate quotation?

Order directly via the official SEALTHAI Shopee store (starting at ฿244 THB) or contact our engineering team on LINE Official Account: @sealthai for free cross-referencing, bulk quotations, and nationwide express delivery.

Industrial O-Ring Seal (FKM) — Engineering Specs, Size Chart (ID×OD×THK) & Selection Guide

Direct Engineering Summary:
The Industrial O-Ring Seal (Profile O-RING / Material FKM) is an industrial-grade sealing solution manufactured from FKM / Viton® Fluorocarbon Elastomer (75–80 Shore A). Engineered to eliminate High-temperature rotary shafts causing conventional NBR seals to harden, crack, and leak prematurely, it supports operating temperatures of -20°C to +200°C (Peak +230°C), pressures of Up to 100–400 Bar (with Back-up Ring), and surface speeds of Up to 15 – 35 m/s. Available in stock at SEALTHAI starting from ฿244 THB.

1. Field Problem Analysis & Engineering Solution

In industrial machinery, power transmission gearboxes, and hydraulic cylinders, a leading cause of unplanned downtime is High-temperature rotary shafts causing conventional NBR seals to harden, crack, and leak prematurely. Selecting an inferior elastomer or mismatched profile accelerates lip wear and lubricant leakage.

SEALTHAI Engineering Solution: Engineered with genuine FKM (Viton) fluorocarbon rubber rated for continuous 200°C operation, preventing thermal hardening and chemical swelling.

2. Engineering Specification Grid

Technical Parameter	Engineering Specification
Seal Type & Profile	Industrial O-Ring Seal (Profile: O-RING)
Material Compound	FKM / Viton® Fluorocarbon Elastomer (75–80 Shore A)
Operating Temperature	-20°C to +200°C (Peak +230°C)
Max Operating Pressure	Up to 100–400 Bar (with Back-up Ring)
Surface Speed Rating	Up to 15 – 35 m/s
Compatible Media	Synthetic engine oils, gear oils, hydraulic fluids, fuels, acids, alkalis, and aggressive chemicals

3. Available Sizes (ID × OD × THK) & Online Pricing

(ID × OD × THK) Inner Diameter x Outer Diameter x Thickness (mm)	SKU	Material / Profile	Online Price	Availability	Order
VI-67x5.3/1pcs	OR-VI-067.00-05.30V7	FKM (O-RING)	฿382 THB	✓ In Stock (36 pcs)	Buy on Shopee
VI-185x5.3/1pcs	OR-VI-185.00-05.30V7	FKM (O-RING)	฿1,115 THB	✓ In Stock (11 pcs)	Buy on Shopee
VI-87.5x5.3/1pcs	OR-VI-087.50-05.30V7	FKM (O-RING)	฿534 THB	✓ In Stock (20 pcs)	Buy on Shopee
VI-41.4x5.3/1pcs	OR-VI-041.40-05.30V7	FKM (O-RING)	฿252 THB	✓ In Stock (30 pcs)	Buy on Shopee
VI-41.2x5.3/1pcs	OR-VI-041.20-05.30V7	FKM (O-RING)	฿244 THB	✓ In Stock (8 pcs)	Buy on Shopee
VI-170x5.3/1pcs	OR-VI-170.00-05.30V7	FKM (O-RING)	฿1,023 THB	✓ In Stock (1 pcs)	Buy on Shopee
VI-50x5.3/1pcs	OR-VI-050.00-05.30V7	FKM (O-RING)	฿283 THB	✓ In Stock (2 pcs)	Buy on Shopee
VI-155x5.3/1pcs	OR-VI-155.00-05.30V7	FKM (O-RING)	฿947 THB	✓ In Stock (15 pcs)	Buy on Shopee
VI-122x5.3/1pcs	OR-VI-122.00-05.30V7	FKM (O-RING)	฿717 THB	✓ In Stock (1 pcs)	Buy on Shopee
VI-195x5.3/1pcs	OR-VI-195.00-05.30V7	FKM (O-RING)	฿1,176 THB	✓ In Stock (27 pcs)	Buy on Shopee
VI-90x5.3/1pcs	OR-VI-090.00-05.30V7	FKM (O-RING)	฿549 THB	✓ In Stock (59 pcs)	Buy on Shopee
VI-118x5.3/1pcs	OR-VI-118.00-05.30V7	FKM (O-RING)	฿687 THB	✓ In Stock (10 pcs)	Buy on Shopee
VI-132x5.3/1pcs	OR-VI-132.00-05.30V7	FKM (O-RING)	฿809 THB	✓ In Stock (3 pcs)	Buy on Shopee
VI-180x5.3/1pcs	OR-VI-180.00-05.30V7	FKM (O-RING)	฿1,085 THB	✓ In Stock (23 pcs)	Buy on Shopee
VI-51.5x5.3/1pcs	OR-VI-051.50-05.30V7	FKM (O-RING)	฿297 THB	✓ In Stock (34 pcs)	Buy on Shopee
VI-48.7x5.3/1pcs	OR-VI-048.70-05.30V7	FKM (O-RING)	฿283 THB	✓ In Stock (258 pcs)	Buy on Shopee
VI-165x5.3/1pcs	OR-VI-165.00-05.30V7	FKM (O-RING)	฿993 THB	✓ In Stock (45 pcs)	Buy on Shopee
VI-140x5.3/1pcs	OR-VI-140.00-05.30V7	FKM (O-RING)	฿855 THB	✓ In Stock (10 pcs)	Buy on Shopee
VI-200x5.3/1pcs	OR-VI-200.00-05.30V7	FKM (O-RING)	฿1,207 THB	✓ In Stock (1 pcs)	Buy on Shopee
VI-100x5.3/1pcs	OR-VI-100.00-05.30V7	FKM (O-RING)	฿595 THB	✓ In Stock (40 pcs)	Buy on Shopee
VI-106x5.3/1pcs	OR-VI-106.00-05.30V7	FKM (O-RING)	฿626 THB	✓ In Stock (746 pcs)	Buy on Shopee
VI-109x5.3/1pcs	OR-VI-109.00-05.30V7	FKM (O-RING)	฿641 THB	✓ In Stock (43 pcs)	Buy on Shopee
VI-42.5x5.3/1pcs	OR-VI-042.50-05.30V7	FKM (O-RING)	฿252 THB	✓ In Stock (30 pcs)	Buy on Shopee
VI-115x5.3/1pcs	OR-VI-115.00-05.30V7	FKM (O-RING)	฿671 THB	✓ In Stock (9 pcs)	Buy on Shopee
VI-125x5.3/1pcs	OR-VI-125.00-05.30V7	FKM (O-RING)	฿733 THB	✓ In Stock (41 pcs)	Buy on Shopee
VI-136x5.3/1pcs	OR-VI-136.00-05.30V7	FKM (O-RING)	฿824 THB	✓ In Stock (3 pcs)	Buy on Shopee
VI-54.5x5.3/1pcs	OR-VI-054.50-05.30V7	FKM (O-RING)	฿313 THB	✓ In Stock (76 pcs)	Buy on Shopee
VI-54.4x5.3/1pcs	OR-VI-054.40-05.30V7	FKM (O-RING)	฿313 THB	✓ In Stock (4 pcs)	Buy on Shopee
VI-128x5.3/1pcs	OR-VI-128.00-05.30V7	FKM (O-RING)	฿763 THB	✓ In Stock (15 pcs)	Buy on Shopee
VI-190x5.3/1pcs	OR-VI-190.00-05.30V7	FKM (O-RING)	฿1,146 THB	✓ In Stock (9 pcs)	Buy on Shopee

4. Comparison: SEALTHAI Industrial Grade vs. Generic Seals vs. OEM Lead Time

Comparison Metric	SEALTHAI (O-RING - FKM)	Low-Grade Generic Seal	Imported OEM Backorder
Thermal & Pressure Endurance	Verified (-20°C to +200°C (Peak +230°C) / Up to 100–400 Bar (with Back-up Ring))	Rapid hardening, cracking, or lip extrusion	Verified OEM Spec
Machine Downtime	In Stock in Thailand (1–2 Days Express)	Frequent repeat teardown & fluid loss	2–6 Weeks Import Lead Time
Total Cost Efficiency	Optimal Value (From ฿244 THB)	High hidden labor & downtime cost	3–5x Higher Price

5. Engineering Installation Checklist & Limitations

Dimension Verification: Measure the actual shaft diameter (ID), housing bore diameter (OD), and groove width (THK) in millimeters using a calibrated digital vernier caliper.
Counterface Surface Finish: Ensure the shaft surface roughness is within Ra 0.2 – 0.8 µm with hardness HRC ≥ 45. If the shaft has a wear groove, install a Shaft Repair Sleeve prior to mounting the new seal.
Lead-In Chamfer & Pre-Lubrication: Verify a 15° – 30° lead-in chamfer on the shaft edge and lightly lubricate the sealing lip before installation to prevent dry-start scoring or garter spring dislodgement.

🛒 Order Online or Consult SEALTHAI Engineers

Ready to ship across Thailand within 1–2 business days. Full corporate tax invoices available.

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