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Description
HOUGHTO-SAFE® NL1 | Water-Glycol Fire Resistant Hydraulic Fluidms and N Line tensioner installations on offshore drilling and production vessels. Formulated to solve the specific degradation and residue formation problems that have plagued conventional water glycol fluids in riser tensioner applications HOUGHTO SAFE NL1 provides validated long term pH stability, outstanding lubricity and full Cefas D environmental compliance. Supplied through Orbit Industrial as an authorised Quaker Houghton distributor.
ms and N-Line tensioner installations on offshore drilling and production vessels. Formulated to solve the specific degradation and residue formation problems that have plagued conventional water-glycol fluids in riser tensioner applications — HOUGHTO-SAFE® NL1 provides validated long-term pH stability, outstanding lubricity and full Cefas D environmental compliance.Supplied through Orbit Industrial as an authorised Quaker Houghton distributor. Available in 209L drums and 1,000L IBC. Available by request for quote only — not available for direct checkout.
Available by Request for Quote Only
HOUGHTO-SAFE® NL1 is a safety-critical fire resistant offshore fluid. Contact Orbit Industrial for pricing, Cefas documentation and port staging logistics.
Product Data Sheet
The Riser Tensioner Problem — and Why NL1 Solves It
Degradation of hydraulic fluid in direct acting tensioner systems has been a documented issue in the offshore industry. Conventional water-glycol fluids can form sticky, high-viscosity black residues containing metal fines under certain operating conditions — residues that can deposit around sealing elements and accumulate in anti-recoil valve internals, creating a critical system failure risk. HOUGHTO-SAFE® NL1 has been specifically formulated to minimise such residue formation and maintain stable pH over a 5-year service period — validated in long-term OEM cylinder tests.
Features & Benefits
| Feature | Advantage & Operational Benefit |
|---|---|
| Passes Def Stan 91-110 Annex D — 40:1 compression ignition ratio | Certified fire resistant performance — complies with defence and offshore fire resistance specifications for safety-critical hydraulic systems |
| Very high lubricity — validated in long-term OEM cylinder tests | Protects riser tensioner cylinder bore surfaces and sealing elements from accelerated wear — extending cylinder service life and reducing overhaul frequency |
| Excellent pH stability for 5 years or more | Prevents the pH-driven degradation and black residue formation that causes anti-recoil valve failure in conventional water-glycol tensioner fluids |
| Can be used as a preservation fluid for up to 5 years | Dual-purpose — active tensioner fluid and long-term preservation fluid — reducing the number of products required for riser tensioner system management |
| Cefas D OCNS Rating | Environmentally acceptable for maximum discharge — compliant with UK CEFAS and global offshore environmental discharge requirements |
| Compatible with most commonly used elastomers | Avoids seal compatibility issues in standard riser tensioner seal materials — note: avoid PU and FKM/FPM seal materials |
| Corrosion resistant in liquid and vapour phase | Protects cylinder bore surfaces — including uncoated, untreated low-alloy carbon steel — from corrosive wear under lower pH operating conditions |
| Compliant with global environmental regulations | Suitable for offshore operations in all major drilling jurisdictions worldwide |
Typical Properties
| Property | Value |
|---|---|
| Fluid Type | Water Glycol — HFC Fire Resistant |
| Kinematic Viscosity @ 40°C (cSt) | 40 |
| Flash Point | None (water-based) |
| Fire Resistance | Def Stan 91-110 Annex D — 40:1 ratio |
| pH Stability | 5 years or more in service |
| Cefas Rating | D — OCNS Compliant |
| Seal Compatibility | Most elastomers — avoid PU and FKM/FPM |
| Preservation Life | Up to 5 years |
Applications
- Direct acting riser tensioner (DAT) systems on semisubmersibles and drillships
- N-Line riser tensioner systems on offshore drilling vessels
- Motion compensation systems on offshore drilling and production platforms
- Safety-critical hydraulic installations requiring Def Stan 91-110 Annex D fire resistance
- Long-term preservation of riser tensioner systems during lay-up periods
Request a Quote — HOUGHTO-SAFE® NL1
Fire resistant riser tensioner fluid. Cefas D compliant. Available in 209L and 1,000L IBC. Port staging across Cape Town, Saldanha Bay, Durban and Port Elizabeth.
Related Quaker Houghton Offshore Products
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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