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PFA-lined couplings & fittings | NexaParts
In stock at NexaParts

PFA-lined couplings & fittings

Stainless steel couplings and fittings with high-purity PFA inner lining for aggressive, high-purity and temperature-critical media. Resistant to virtually all chemicals, FDA- and EU 1935-compliant and vacuum-rated — in white and conductive black (Ω) versions.

PFA layer thickness 1–3 mmTemperature -50°C to 200°CWorking pressure up to PN25FDA & EU 1935White & black in stock

Why PFA-lined?

PFA (perfluoroalkoxy) offers the chemical resistance of PTFE, but with extra advantages: exceptional temperature resistance from -220°C to +260°C and complete freedom from processing aids, ensuring the purity of highly sensitive media. The durable, strong adhesion of the PFA layer to the stable stainless steel core is an important quality feature — with a layer thickness of up to 3 mm.

⚙️

Layer thickness 1–3 mm

Significantly thicker PFA lining than usual, for maximum durability and chemical protection.

✔️

FDA & EU 1935

Certified for food and pharma — including the black version.

Ω version

Conductive black PFA with R < 10⁶ Ω for dissipating static charge.

📦

In stock

Wide range of coupling types in white and black available directly.

📐

DIN EN 14420

Serrated hose tail according to standard for a reliable connection.

🔧

Custom-made

Other coupling types with PFA lining available as special designs.

Technical information

Cross-section of a PFA-lined coupling: blue PFA layer on stainless steel core
Cross-section — the blue layer is the PFA lining on the stable stainless steel core, with interlocking for maximum vacuum resistance within the standard contour DIN EN 14420-2.

Properties

  • High-purity PFA with a stable, smooth surface for a better seal
  • Layer thickness >1 mm to 3 mm — complies with DIN EN 14420
  • Black PFA < 10⁶ Ω (conductive, static charge dissipation)
  • Vacuum-rated and temperature-resistant up to 200°C in application
  • FDA- and EU 1935-compliant
  • Chamfered, serrated tail for improved flow characteristics

Area of application

  • High-purity liquids and media
  • Pharmaceutical and food industries
  • High-temperature applications
  • Aggressive media that attack even stainless steel (e.g. iron(III) chloride)
  • Suitable for ferrules and safety clamps

PFA material properties

GroupPropertyUnitValue
GeneralContinuous working temp. (max.)°C260
Chemical resistanceExcellent
Specific gravity (D 792)g/cm³2,15
ElectricalDielectric constant (D150, 10³/10⁶ Hz)2,04
Dielectric dissipation factor (D150, 10³/10⁶ Hz)0,0002 / 0,0003
Dielectric strength (D 149)kV/mm55
Volume resistivity (D 257)Ohm·cm>10¹⁸
MechanicalTensile strength (D 1708 / D 638)MPa30
Elongation (D 1708 / D 638)%300
Compressive strength (D 695)MPa15
Impact strength (D 256, +23°C)J/mNo break
Flexural modulus (D 790, +23°C)MPa690
Tensile modulus (D 638)MPa270
Hardness (D 2240)60–65
ThermalMelting point°C305
Thermal conductivity (+23°C)W/Kg·m0,25
HDT DIN 75 (method A / B)°C74 / 48

PFA lining overview by type

Available size ranges per coupling type in white and black (conductive) versions. Conductivity of black PFA lining: 10³ – 10⁵ Ω.

TypeWorking temp.Working pressureThicknessWhiteBlack / Ω
MK and VK-50 ~ 200 °CPN16≥ 2 mmDN50–100DN50–100
BSPP male thread coupling-50 ~ 200 °CPN16≥ 2 mmDN25–100DN25–75
Camlock DIN-50 ~ 200 °CPN16≥ 2 mmDN25–80DN25–80
Camlock Security-50 ~ 200 °CPN25≥ 2 mmDN25–50DN25–50
Guillemin-50 ~ 200 °CPN16≥ 2 mmDN32–50DN50–100
Composite-50 ~ 200 °CPN16≥ 2 mmDN40–100
Tri Clamp (DIN 32676)-50 ~ 200 °CPN16≥ 2 mmDN25–100DN25–75
DIN 11851 coupling-50 ~ 200 °CPN25≥ 2 mmDN25–80DN25–80
SMS coupling-50 ~ 200 °CPN25≥ 2 mmDN25–50DN25–50
Macon coupling-50 ~ 200 °CPN16≥ 2 mmDN38–70DN38–70
Swivel flange-50 ~ 200 °CPN16≥ 2 mmDN25–80DN25–80

Product overview

Finish:
Size (DN):
TW coupler type MK — BSPP female thread (complete) TW coupler type MK — BSPP female thread (complete) 6 variants
TW coupler type MK — BSPP female thread (complete) — white version
White
TW coupler type MK — BSPP female thread (complete) — black version
Black

PFA-lined, with FKM lip seal. Coupler with female thread.

Item numberFinishMaterialWorking pressureDNThread
50165WhiteSS 1.440816 barDN502"
50166WhiteSS 1.440816 barDN803"
50167WhiteSS 1.440816 barDN1004"
58629Black · Ω conductiveSS 1.440816 barDN502"
58663Black · Ω conductiveSS 1.440816 barDN803"
58691Black · Ω conductiveSS 1.440816 barDN1004"

** one-piece — with O-ring instead of lip seal.

TW adapter type VK — BSPP female thread TW adapter type VK — BSPP female thread 6 variants
TW adapter type VK — BSPP female thread — white version
White
TW adapter type VK — BSPP female thread — black version
Black

PFA-lined. Adapter with female thread.

Item numberFinishMaterialWorking pressureDNThread
50168WhiteSS 1.440816 barDN502"
50169WhiteSS 1.440816 barDN803"
50170WhiteSS 1.440816 barDN1004"
58641Black · Ω conductiveSS 1.440816 barDN502"
58674Black · Ω conductiveSS 1.440816 barDN803"
58702Black · Ω conductiveSS 1.440816 barDN1004"
TW plug type VB for MK (without chain) TW plug type VB for MK (without chain)NEW 3 variants
TW plug type VB for MK (without chain) — white version
White

PFA-lined.

Item numberFinishMaterialWorking pressureSize
85494WhiteSS 1.440816 barDN50
85495WhiteSS 1.440816 barDN80
85496WhiteSS 1.440816 barDN100
BSPP male thread coupling — serrated hose tail + collar BSPP male thread coupling — serrated hose tail + collar 13 variants
BSPP male thread coupling — serrated hose tail + collar — white version
White
BSPP male thread coupling — serrated hose tail + collar — black version
Black

PFA-lined.

Item numberFinishMaterialWorking pressureHose tailThread
61230WhiteSS 1.440816 bar25 mm1"
61237WhiteSS 1.440816 bar32 mm1 1/4"
61244WhiteSS 1.440816 bar38 mm1 1/2"
61253WhiteSS 1.440816 bar50,4 mm2"
61260WhiteSS 1.440816 bar63 mm2 1/2"
61269WhiteSS 1.440816 bar75,4 mm3"
61215WhiteSS 1.440816 bar101,8 mm4"
61229Black · Ω conductiveSS 1.440816 bar25 mm1"
61236Black · Ω conductiveSS 1.440816 bar32 mm1 1/4"
61243Black · Ω conductiveSS 1.440816 bar38 mm1 1/2"
61252Black · Ω conductiveSS 1.440816 bar50,4 mm2"
61259Black · Ω conductiveSS 1.440816 bar63 mm2 1/2"
61268Black · Ω conductiveSS 1.440816 bar75,4 mm3"
Camlock adapter type A — BSPP female thread, flat sealing Camlock adapter type A — BSPP female thread, flat sealing 12 variants
Camlock adapter type A — BSPP female thread, flat sealing — white version
White
Camlock adapter type A — BSPP female thread, flat sealing — black version
Black

PFA-lined.

Item numberFinishMaterialWorking pressureSizeThread
58753WhiteSS 1.440816 barDN251"
58763WhiteSS 1.440816 barDN321 1/4"
58773WhiteSS 1.440816 barDN401 1/2"
58784WhiteSS 1.440816 barDN502"
58792WhiteSS 1.440816 barDN652 1/2"
58800WhiteSS 1.440816 barDN803"
58752Black · Ω conductiveSS 1.440816 barDN251"
58762Black · Ω conductiveSS 1.440816 barDN321 1/4"
58772Black · Ω conductiveSS 1.440816 barDN401 1/2"
58783Black · Ω conductiveSS 1.440816 barDN502"
58791Black · Ω conductiveSS 1.440816 barDN652 1/2"
58799Black · Ω conductiveSS 1.440816 barDN803"
Camlock coupler type C — serrated hose tail + collar Camlock coupler type C — serrated hose tail + collar 12 variants
Camlock coupler type C — serrated hose tail + collar — white version
White
Camlock coupler type C — serrated hose tail + collar — black version
Black

PFA-lined, with FKM gasket.

Item numberFinishMaterialWorking pressureSizeHose tail
59107WhiteSS 1.440816 barDN2525 mm
59121WhiteSS 1.440816 barDN3232 mm
59137WhiteSS 1.440816 barDN4038 mm
59156WhiteSS 1.440816 barDN5050,4 mm
59174WhiteSS 1.440816 barDN6563 mm
59185WhiteSS 1.440816 barDN8075,4 mm
59106Black · Ω conductiveSS 1.440816 barDN2525 mm
59120Black · Ω conductiveSS 1.440816 barDN3232 mm
59136Black · Ω conductiveSS 1.440816 barDN4038 mm
59155Black · Ω conductiveSS 1.440816 barDN5050,4 mm
59173Black · Ω conductiveSS 1.440816 barDN6563 mm
59184Black · Ω conductiveSS 1.440816 barDN8075,4 mm
Camlock coupler type C — with safety lock (Security) Camlock coupler type C — with safety lock (Security) 8 variants
Camlock coupler type C — with safety lock (Security) — black version
Black

PFA-lined, with FKM gasket, serrated hose tail + collar.

Item numberFinishMaterialWorking pressureSizeHose tail
85497WhiteSS 1.440825 barDN2525 mm
85498WhiteSS 1.440825 barDN3232 mm
85499WhiteSS 1.440825 barDN4038 mm
85500WhiteSS 1.440825 barDN5050,4 mm
85501Black · Ω conductiveSS 1.440825 barDN2525 mm
85502Black · Ω conductiveSS 1.440825 barDN3232 mm
85503Black · Ω conductiveSS 1.440825 barDN4038 mm
85504Black · Ω conductiveSS 1.440825 barDN5050,4 mm
Camlock gasket for coupler — PFA version Camlock gasket for coupler — PFA versionNEW 6 variants
Camlock gasket for coupler — PFA version

Replacement gasket for PFA Camlock coupler.

Item numberColourMaterialSize
85505greenFKMDN25
85506greenFKMDN32
85507greenFKMDN40
85508greenFKMDN50
85509greenFKMDN65
85510greenFKMDN80
Camlock coupler type D — Security, BSPP female thread, flat sealing Camlock coupler type D — Security, BSPP female thread, flat sealingNEW 8 variants
Camlock coupler type D — Security, BSPP female thread, flat sealing — white version
White
Camlock coupler type D — Security, BSPP female thread, flat sealing — black version
Black

PFA-lined, with FKM gasket.

Item numberFinishMaterialWorking pressureSizeThread
85511WhiteSS 1.440825 barDN251"
85512WhiteSS 1.440825 barDN321 1/4"
85513WhiteSS 1.440825 barDN401 1/2"
85514WhiteSS 1.440825 barDN502"
85515Black · Ω conductiveSS 1.440825 barDN251"
85516Black · Ω conductiveSS 1.440825 barDN321 1/4"
85517Black · Ω conductiveSS 1.440825 barDN401 1/2"
85518Black · Ω conductiveSS 1.440825 barDN502"
Camlock coupler type D — BSPP female thread, flat sealing Camlock coupler type D — BSPP female thread, flat sealing 12 variants
Camlock coupler type D — BSPP female thread, flat sealing — white version
White
Camlock coupler type D — BSPP female thread, flat sealing — black version
Black

PFA-lined, with FKM gasket.

Item numberFinishMaterialWorking pressureSizeThread
59517WhiteSS 1.440816 barDN251"
59530WhiteSS 1.440816 barDN321 1/4"
59544WhiteSS 1.440816 barDN401 1/2"
59560WhiteSS 1.440816 barDN502"
59572WhiteSS 1.440816 barDN652 1/2"
59583WhiteSS 1.440816 barDN803"
59516Black · Ω conductiveSS 1.440816 barDN251"
59529Black · Ω conductiveSS 1.440816 barDN321 1/4"
59543Black · Ω conductiveSS 1.440816 barDN401 1/2"
59559Black · Ω conductiveSS 1.440816 barDN502"
59571Black · Ω conductiveSS 1.440816 barDN652 1/2"
59582Black · Ω conductiveSS 1.440816 barDN803"
Camlock adapter type E — serrated hose tail + collar Camlock adapter type E — serrated hose tail + collar 12 variants
Camlock adapter type E — serrated hose tail + collar — white version
White
Camlock adapter type E — serrated hose tail + collar — black version
Black

PFA-lined.

Item numberFinishMaterialWorking pressureSizeHose tail
60109WhiteSS 1.440816 barDN2525 mm
60119WhiteSS 1.440816 barDN3232 mm
60129WhiteSS 1.440816 barDN4038 mm
60140WhiteSS 1.440816 barDN5050,4 mm
60148WhiteSS 1.440816 barDN6563 mm
60155WhiteSS 1.440816 barDN8075,4 mm
60108Black · Ω conductiveSS 1.440816 barDN2525 mm
60118Black · Ω conductiveSS 1.440816 barDN3232 mm
60128Black · Ω conductiveSS 1.440816 barDN4038 mm
60139Black · Ω conductiveSS 1.440816 barDN5050,4 mm
60147Black · Ω conductiveSS 1.440816 barDN6563 mm
60154Black · Ω conductiveSS 1.440816 barDN8075,4 mm
Guillemin coupling — serrated hose tail, latch + collar Guillemin coupling — serrated hose tail, latch + collar 6 variants
Guillemin coupling — serrated hose tail, latch + collar — white version
White
Guillemin coupling — serrated hose tail, latch + collar — black version
Black

PFA-lined.

Item numberFinishMaterialWorking pressureSizeHose tail
60368WhiteSS 1.440816 barDN3232 mm
60374WhiteSS 1.440816 barDN4038 mm
60376WhiteSS 1.440816 barDN5050,4 mm
60375Black · Ω conductiveSS 1.440816 barDN5050,4 mm
60378Black · Ω conductiveSS 1.440816 barDN8075,4 mm
60379Black · Ω conductiveSS 1.440816 barDN100100 mm
Guillemin coupling — helico shank for composite hose Guillemin coupling — helico shank for composite hose 3 variants
Guillemin coupling — helico shank for composite hose — black version
Black

PFA-lined. For composite hoses.

Item numberFinishMaterialWorking pressureSizeHose tail
60417Black · Ω conductiveSS 1.440814 barDN5050 mm
60427Black · Ω conductiveSS 1.440814 barDN8076 mm
60432Black · Ω conductiveSS 1.440814 barDN100100 mm
Helico shank with BSP male thread for composite hose Helico shank with BSP male thread for composite hose 4 variants
Helico shank with BSP male thread for composite hose — black version
Black

PFA-lined. For composite hoses.

Item numberFinishMaterialWorking pressureSizeHose tail
60449Black · Ω conductiveSS 1.440814 barDN4040 mm
60455Black · Ω conductiveSS 1.440814 barDN5050 mm
60465Black · Ω conductiveSS 1.440814 barDN8076 mm
60470Black · Ω conductiveSS 1.440814 barDN100100 mm
Tri Clamp coupling DIN 32676 — serrated hose tail + collar Tri Clamp coupling DIN 32676 — serrated hose tail + collar 13 variants
Tri Clamp coupling DIN 32676 — serrated hose tail + collar — white version
White
Tri Clamp coupling DIN 32676 — serrated hose tail + collar — black version
Black

PFA-lined.

Item numberFinishMaterialWorking pressureDiskHose tail
56492WhiteSS 1.440416 bar50.525 mm
56493WhiteSS 1.440416 bar50.532 mm
56494WhiteSS 1.440416 bar50.538 mm
56495WhiteSS 1.440416 bar6450,4 mm
56496WhiteSS 1.440416 bar9163 mm
56497WhiteSS 1.440416 bar10675,4 mm
56498WhiteSS 1.440416 bar119101,8 mm
59488Black · Ω conductiveSS 1.440416 bar50.525 mm
59489Black · Ω conductiveSS 1.440416 bar50.532 mm
59490Black · Ω conductiveSS 1.440416 bar50.538 mm
59492Black · Ω conductiveSS 1.440416 bar6450,4 mm
59493Black · Ω conductiveSS 1.440416 bar9163 mm
59494Black · Ω conductiveSS 1.440416 bar10675,4 mm

The PFA thickness of the disk is 1 mm due to the standard dimensions.

Male part DIN 11851 — male thread, serrated hose tail + collar Male part DIN 11851 — male thread, serrated hose tail + collar 12 variants
Male part DIN 11851 — male thread, serrated hose tail + collar — white version
White
Male part DIN 11851 — male thread, serrated hose tail + collar — black version
Black

PFA-lined, without gasket.

Item numberFinishMaterialWorking pressureSizeHose tail
59955WhiteSS 1.440425 barDN2525 mm
59959WhiteSS 1.440425 barDN3232 mm
59963WhiteSS 1.440425 barDN4038 mm
59968WhiteSS 1.440425 barDN5050,4 mm
59973WhiteSS 1.440425 barDN6563 mm
59977WhiteSS 1.440425 barDN8075,4 mm
59954Black · Ω conductiveSS 1.440425 barDN2525 mm
59958Black · Ω conductiveSS 1.440425 barDN3232 mm
59962Black · Ω conductiveSS 1.440425 barDN4038 mm
59967Black · Ω conductiveSS 1.440425 barDN5050,4 mm
59972Black · Ω conductiveSS 1.440425 barDN6563 mm
59976Black · Ω conductiveSS 1.440425 barDN8075,4 mm
Cone part DIN 11851 — coupler, serrated hose tail + collar Cone part DIN 11851 — coupler, serrated hose tail + collar 12 variants
Cone part DIN 11851 — coupler, serrated hose tail + collar — white version
White
Cone part DIN 11851 — coupler, serrated hose tail + collar — black version
Black

PFA-lined, without union nut.

Item numberFinishMaterialWorking pressureSizeHose tail
59915WhiteSS 1.440425 barDN2525 mm
59922WhiteSS 1.440425 barDN3232 mm
59926WhiteSS 1.440425 barDN4038 mm
59937WhiteSS 1.440425 barDN5050,4 mm
59942WhiteSS 1.440425 barDN6563 mm
59948WhiteSS 1.440425 barDN8075,4 mm
59914Black · Ω conductiveSS 1.440425 barDN2525 mm
59921Black · Ω conductiveSS 1.440425 barDN3232 mm
59925Black · Ω conductiveSS 1.440425 barDN4038 mm
59936Black · Ω conductiveSS 1.440425 barDN5050,4 mm
59941Black · Ω conductiveSS 1.440425 barDN6563 mm
59947Black · Ω conductiveSS 1.440425 barDN8075,4 mm
Cone part SMS 1145 — coupler, serrated hose tail + collar Cone part SMS 1145 — coupler, serrated hose tail + collarNEW 8 variants
Cone part SMS 1145 — coupler, serrated hose tail + collar — white version
White

PFA-lined, without union nut.

Item numberFinishMaterialWorking pressureSizeHose tail
85519WhiteSS 1.440425 barDN2525 mm
85520WhiteSS 1.440425 barDN3232 mm
85521WhiteSS 1.440425 barDN4038 mm
85522WhiteSS 1.440425 barDN5050,4 mm
85523Black · Ω conductiveSS 1.440425 barDN2525 mm
85524Black · Ω conductiveSS 1.440425 barDN3232 mm
85525Black · Ω conductiveSS 1.440425 barDN4038 mm
85526Black · Ω conductiveSS 1.440425 barDN5050,4 mm
Male part SMS 1145 — male thread, serrated hose tail + collar Male part SMS 1145 — male thread, serrated hose tail + collarNEW 8 variants
Male part SMS 1145 — male thread, serrated hose tail + collar — black version
Black

PFA-lined, without gasket.

Item numberFinishMaterialWorking pressureSizeHose tail
85527WhiteSS 1.440425 barDN2525 mm
85528WhiteSS 1.440425 barDN3232 mm
85529WhiteSS 1.440425 barDN4038 mm
85530WhiteSS 1.440825 barDN5050,4 mm
85531Black · Ω conductiveSS 1.440425 barDN2525 mm
85532Black · Ω conductiveSS 1.440425 barDN3232 mm
85533Black · Ω conductiveSS 1.440425 barDN4038 mm
85534Black · Ω conductiveSS 1.440425 barDN5050,4 mm
Macon coupling coupler — serrated hose tail + collar Macon coupling coupler — serrated hose tail + collar 6 variants
Macon coupling coupler — serrated hose tail + collar — white version
White
Macon coupling coupler — serrated hose tail + collar — black version
Black

PFA-lined, without nut.

Item numberFinishMaterialWorking pressureSizeHose tail
60609WhiteSS 1.440416 barDN3839 mm
60615WhiteSS 1.440416 barDN5050,4 mm
60621WhiteSS 1.440416 barDN7070,4 mm
60608Black · Ω conductiveSS 1.440416 barDN3839 mm
60614Black · Ω conductiveSS 1.440416 barDN5050,4 mm
60620Black · Ω conductiveSS 1.440416 barDN7070,4 mm
Macon coupling adapter — serrated hose tail + collar Macon coupling adapter — serrated hose tail + collar 6 variants
Macon coupling adapter — serrated hose tail + collar — white version
White
Macon coupling adapter — serrated hose tail + collar — black version
Black

PFA-lined, without gasket.

Item numberFinishMaterialWorking pressureSizeHose tail
60636WhiteSS 1.440416 barDN3839 mm
60642WhiteSS 1.440416 barDN5050,4 mm
60648WhiteSS 1.440416 barDN7070,4 mm
60635Black · Ω conductiveSS 1.440416 barDN3839 mm
60641Black · Ω conductiveSS 1.440416 barDN5050,4 mm
60647Black · Ω conductiveSS 1.440416 barDN7070,4 mm
Swivel flange — serrated hose tail + collar Swivel flange — serrated hose tail + collar 12 variants
Swivel flange — serrated hose tail + collar — white version
White
Swivel flange — serrated hose tail + collar — black version
Black

PFA-lined.

Item numberFinishMaterialWorking pressureSizeHose tail
59059WhiteSS 1.440816 barDN2525 mm
59062WhiteSS 1.440816 barDN3232 mm
59065WhiteSS 1.440816 barDN4038 mm
59069WhiteSS 1.440816 barDN5050,4 mm
59073WhiteSS 1.440816 barDN6563 mm
59077WhiteSS 1.440816 barDN8075,4 mm
59058Black · Ω conductiveSS 1.440816 barDN2525 mm
85535Black · Ω conductiveSS 1.440816 barDN3232 mm
85536Black · Ω conductiveSS 1.440816 barDN4038 mm
59068Black · Ω conductiveSS 1.440816 barDN5050,4 mm
59072Black · Ω conductiveSS 1.440816 barDN6563 mm
59076Black · Ω conductiveSS 1.440816 barDN8075,4 mm