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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
PDF
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
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Exchange/Return Notes
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4.6 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Great bang for your buck
Size: Size 1 (50 Count), Size: Size 1 (50 Count)
Gotta say this is a pretty good diaper for the price! Not as soft as your luxury name brands but still very soft. Great absorption, no leaks, moisture stripe works. I like that they're mostly plain, I never understood why diapers needed to be "cute." The adhesion tabs work well, even though I did waste a diaper accidentally ripping one off. x)
As for negatives this diaper is narrower than all the other brands. Which is fine, it still fits my baby but I probably won't be buying these again unless im using them as an in between from nb to size 1
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Reviewed in the United States on May 3, 2026
★★★★★ 4
Comparable to Major Name Brands in price and quality
Size: Newborn (30 Count)
Good value for the price , comparable in value and quality of major name brands. Visually attractive and detailed product description on packaging. Newborn size package is very small and well packaged for easy storage. Diapers are made to fit comfortably to newborns body and manufactured to wick moisture into the diaper away from babies skin and so not to leak. They absorb a fairly good amount of liquid with no problems. The adhesive tabs stick well and do not come lose.
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Lifesavers for sensitive skin!
Size: Size 6 (108 Count)
These are the only diapers we love after trying countless other brands. We struggled with so many issues, from diapers that felt cheaply made and rough, to constant leaks, or scents that caused horrible breakouts on my son’s sensitive skin. The Mama Bear Gentle Touch diapers are the first ones I have found that are truly soft, completely leakproof for us, and do not cause any irritation. They are lifesavers, and it is a genuine nightmare when we run out. They perform great overnight with no leaks, and they hold up well during active daytime play. We do get a few leaks, but it’s when my son chugs the water. I don’t think any diaper is saving that. The fit is consistent, the tabs are secure but still stretchy, and buying the bulk pack is a good value. If you have a child with very sensitive skin, I highly recommend giving these a try.
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Reviewed in the United States on October 10, 2025
★★★★★ 5
Wish we had these diapers with my first 3
Size: Newborn (120 Count), Size: Newborn (120 Count)
I am 39 been married 22 years and I have 4 kids. We have always had our kids seperated over the years and I have always used Luv's with my first 3 all other diapers leaked badly, never lasted long or gave the kids rashes. Luv's worked a little better on leaks at night none of the these diaper prevented leaks on sheets and bed while sleeping u always had to change there diapers multiple times a c there skin was always wet. With my first 3 kids we did not have the choices we have now days.
Well my 4th child is now 18 months and I had hopes of no more changing sheets in the middle of night. I finally got that with these diapers now I have learned all 3 above brands are garbage. Now they feel like paper to me and a waste of money. When I have ran out of diapers my husband has picked these diapers up at the local store. What happens wet clothes wet beds rashes. I never use these donate them everytime. When I see people say these are cheap diapers and they leak I have no clue what your talking about and my guess is they are buying the wrong size or not putting them on right. Alot of parents don't even realize they are using the wrong sizes for there child and if u are not buying the right size or put them on correct yes u will have leaks. The only time my sons skin is wet is when the diapers have been left on way to long and his peed alot. So if he slept 10 hours over night with no diaper change and he drank alot before bed this happens rarely but when he does this happens. Now while he was tiny no I didn't have this issue. I will say these are amazing diapers and I have tryed many diapers during this time more expensive and less these are the only diapers I will buy. It's also the first time ever with all my kids I didn't wake up many times with newborn having wet clothes and soaking the bed all thoughout the night some night soaking me too. There overnight diapers are really amazing too.
I would recommend these to anyone and I would never do so for luv pamper huggies I see those as a waste of money cheap diapers. These are perfect, know the correct size buy bigger keep diapers above belly button to many buy them to small.
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Reviewed in the United States on July 21, 2024
★★★★★ 3
Frequent leaks
Size: Size 2 (184 Count)
These diapers leak through frequently. They also run small so make sure to size up. My LO wears a size 1 in other diaper brands but mamabear’s size 1 was tiny. Had to exchange for a size 2.
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Reviewed in the United States on June 2, 2026