Walther Coupling Model HP-020

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Coupling Information

There are three basic types of HP-020 coupling. Part numbers for each are listed below.

Valve arrangement	The Coupling (Female side)	The Nipple (Male side)
Standard (with valves)	HP-020-0-...	HP-020-2-...
No valves (thru type)	Use HP-020-0-... with - OV option	HP-020-1-...

End Fittings

(Refer to Part Number System)

BSPP (British Standard Pipe, Parallel) with shoulder
End fitting	Self-sealing Coupling	Self-sealing Nipple	Thru type Nipple
BSPP(M) 1"	HP-020-0-WB033-..	HP-020-2-WB033-..	HP-020-1-WB033-..
BSPP (British Standard Pipe, Parallel)
End fitting	Self-sealing Coupling	Self-sealing Nipple	Thru type Nipple
BSPP(F) 1"	HP-020-0-WR533-..	HP-020-2-WR533-..	--
NPT (National Pipe, Tapered)
End fitting	Self-sealing Coupling	Self-sealing Nipple	Thru type Nipple
NPT(M) 1"	HP-020-0-NP033-..	HP-020-2-NP033-..	HP-020-1-NP033-..
NPT(F) 1"	HP-020-0-NP533-..	HP-020-2-NP533-..	--
BSPP(M) with 60Â° Female cone (usually to fit hose ends with BSP swivel nuts)
End fitting	Self-sealing Coupling	Self-sealing Nipple	Thru type Nipple
BSPP(M) 1"w/60Â° F cone	HP-020-0-VR033-..	HP-020-2-VR033-..	--
DIN 7631, M14 x 1.5mm with 60Â° Female cone (usually to fit hoses with metric swivel nuts)
End fitting	Self-sealing Coupling	Self-sealing Nipple	Thru type Nipple
M26 x 1.5	HP-020-0-D1526-..	HP-020-2-D1526-..	--
M30 x 1.5	HP-020-0-D1930-..	HP-020-2-D1930-..	--
EO (Ermeto) to fit tube & ferrule
End fitting	Self-sealing Coupling	Self-sealing Nipple	Thru type Nipple
M30 x 2 20mm OD tube (Heavy)	HP-020-0-S2030-..	HP-020-2-S2030-..	--
M36 x 2 25mm OD tube (Heavy)	HP-020-0-S2536-..	HP-020-2-S2536-..	--

Dust Caps & Dust Plugs - Part numbers for Series HP-020

Material	Plugs for Couplings (Female side)	Caps for Adapters (Male side)
Non-pressure retaining1	HP-020-6-73-KU	HP-020-5-73-KU
Pressure retaining2	HP-020-6-12	HP-020-5-12-1 (Nitrile)HP-020-5-12-2 (Viton)HP-020-5-12-4 (EPDM)

* Plugs and caps are available for both self-sealing & thru-type couplings and adapters.1. Soft PVC (black)2. Oil burnished steel, nickel-plated steel chain and retaining rings

Flow Capacity

1" BSPP(M), Self-sealing Coupling

Partial Part Number: HP-020-0-WB033-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-0-WB033-12-1	HP-020-0-WB033-12-2	HP-020-0-WB033-12-4
Steel, 316 stainless	HP-020-0-WB033-01-1	HP-020-0-WB033-01-2	HP-020-0-WB033-01-4	--
Steel, electroless nickel pl.	HP-020-0-WB033-13-1	HP-020-0-WB033-13-2	HP-020-0-WB033-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Safety locking ring	-SI
Heavy-duty ring valves	-RV
Ring grips	-GG

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

1" BSPP(M), Self-sealing Nipple

Partial Part Number: HP-020-2-WB033-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-2-WB033-12-1	HP-020-2-WB033-12-2	HP-020-2-WB033-12-4
Steel, 316 stainless	HP-020-2-WB033-01-1	HP-020-2-WB033-01-2	HP-020-2-WB033-01-4	--
Steel, stainless, hardened	HP-020-2-WB033-W1-1	HP-020-2-WB033-W1-2	HP-020-2-WB033-W1-4	--
Steel, electroless nickel pl.	HP-020-2-WB033-13-1	HP-020-2-WB033-13-2	HP-020-2-WB033-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Heavy-duty ring valves	-RV

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

1" BSPP(M), Thru type Nipple

Partial Part Number: HP-020-1-WB033-..

Find complete part numbers below:

Material	Part Number	Click to Enlarge
Steel, hardened, oil burnished	HP-020-1-WB033-12
Steel, 316 stainless	HP-020-1-WB033-01	--
Steel, stainless, hardened	HP-020-1-WB033-W1	--
Steel, electroless nickel pl.	HP-020-1-WB033-13	--
Standard materials in bold. Other materials & seals available.

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.

1" BSPP(F), Self-sealing Coupling

Partial Part Number: HP-020-0-WB533-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-0-WB533-12-1	HP-020-0-WB533-12-2	HP-020-0-WB533-12-4
Steel, 316 stainless	HP-020-0-WB533-01-1	HP-020-0-WB533-01-2	HP-020-0-WB533-01-4	--
Steel, electroless nickel pl.	HP-020-0-WB533-13-1	HP-020-0-WB533-13-2	HP-020-0-WB533-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Safety locking ring	-SI
Heavy-duty ring valves	-RV
Ring grips	-GG

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

1" BSPP(F), Self-sealing Nipple

Partial Part Number: HP-020-2-WB533-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-2-WB533-12-1	HP-020-2-WB533-12-2	HP-020-2-WB533-12-4
Steel, 316 stainless	HP-020-2-WB533-01-1	HP-020-2-WB533-01-2	HP-020-2-WB533-01-4	--
Steel, stainless, hardened	HP-020-2-WB533-W1-1	HP-020-2-WB533-W1-2	HP-020-2-WB533-W1-4	--
Steel, electroless nickel pl.	HP-020-2-WB533-13-1	HP-020-2-WB533-13-2	HP-020-2-WB533-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Heavy-duty ring valves	-RV

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

1" NPT(M), Self-sealing Coupling

Partial Part Number: HP-020-0-NP033-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-0-NP033-12-1	HP-020-0-NP033-12-2	HP-020-0-NP033-12-4	--
Steel, 316 stainless	HP-020-0-NP033-01-1	HP-020-0-NP033-01-2	HP-020-0-NP033-01-4	--
Steel, electroless nickel pl.	HP-020-0-NP033-13-1	HP-020-0-NP033-13-2	HP-020-0-NP033-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Safety locking ring	-SI
Heavy-duty ring valves	-RV
Ring grips	-GG

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

1" NPT(M), Self-sealing Nipple

Partial Part Number: HP-020-2-NP033-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-2-NP033-12-1	HP-020-2-NP033-12-2	HP-020-2-NP033-12-4	--
Steel, 316 stainless	HP-020-2-NP033-01-1	HP-020-2-NP033-01-2	HP-020-2-NP033-01-4	--
Steel, stainless, hardened	HP-020-2-NP033-W1-1	HP-020-2-NP033-W1-2	HP-020-2-NP033-W1-4	--
Steel, electroless nickel pl.	HP-020-2-NP033-13-1	HP-020-2-NP033-13-2	HP-020-2-NP033-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Heavy-duty ring valves	-RV

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

1" NPT(M), Thru type Nipple

Partial Part Number: HP-020-1-NP033-..

Find complete part numbers below:

Material	Part Number	Click to Enlarge
Steel, hardened, oil burnished	HP-020-1-NP033-12	--
Steel, 316 stainless	HP-020-1-NP033-01	--
Steel, stainless, hardened	HP-020-1-NP033-W1	--
Steel, electroless nickel pl.	HP-020-1-NP033-13	--
Standard materials in bold. Other materials & seals available.

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.

1" NPT(F), Self-sealing Coupling

Partial Part Number: HP-020-0-NP533-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-0-NP533-12-1	HP-020-0-NP533-12-2	HP-020-0-NP533-12-4
Steel, 316 stainless	HP-020-0-NP533-01-1	HP-020-0-NP533-01-2	HP-020-0-NP533-01-4	--
Steel, electroless nickel pl.	HP-020-0-NP533-13-1	HP-020-0-NP533-13-2	HP-020-0-NP533-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Safety locking ring	-SI
Heavy-duty ring valves	-RV
Ring grips	-GG

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

1" NPT(F), Self-sealing Nipple

Partial Part Number: HP-020-2-NP533-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-2-NP533-12-1	HP-020-2-NP533-12-2	HP-020-2-NP533-12-4
Steel, 316 stainless	HP-020-2-NP533-01-1	HP-020-2-NP533-01-2	HP-020-2-NP533-01-4	--
Steel, stainless, hardened	HP-020-2-NP533-W1-1	HP-020-2-NP533-W1-2	HP-020-2-NP533-W1-4	--
Steel, electroless nickel pl.	HP-020-2-NP533-13-1	HP-020-2-NP533-13-2	HP-020-2-NP533-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Heavy-duty ring valves	-RV

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

1" BSPP(M) w/60° F cone, Self-sealing Coupling

Partial Part Number: HP-020-0-VR033-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-0-VR033-12-1	HP-020-0-VR033-12-2	HP-020-0-VR033-12-4	--
Steel, 316 stainless	HP-020-0-VR033-01-1	HP-020-0-VR033-01-2	HP-020-0-VR033-01-4	--
Steel, electroless nickel pl.	HP-020-0-VR033-13-1	HP-020-0-VR033-13-2	HP-020-0-VR033-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Safety locking ring	-SI
Heavy-duty ring valves	-RV
Ring grips	-GG

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

1" BSPP(M) w/60° F cone, Self-sealing Nipple

Partial Part Number: HP-020-2-VR033-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-2-VR033-12-1	HP-020-2-VR033-12-2	HP-020-2-VR033-12-4	--
Steel, 316 stainless	HP-020-2-VR033-01-1	HP-020-2-VR033-01-2	HP-020-2-VR033-01-4	--
Steel, stainless, hardened	HP-020-2-VR033-W1-1	HP-020-2-VR033-W1-2	HP-020-2-VR033-W1-4	--
Steel, electroless nickel pl.	HP-020-2-VR033-13-1	HP-020-2-VR033-13-2	HP-020-2-VR033-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Heavy-duty ring valves	-RV

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

M26 x 1.5 w/60° F cone, Self-sealing Coupling

Partial Part Number: HP-020-0-D1526-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-0-D1526-12-1	HP-020-0-D1526-12-2	HP-020-0-D1526-12-4	--
Steel, 316 stainless	HP-020-0-D1526-01-1	HP-020-0-D1526-01-2	HP-020-0-D1526-01-4	--
Steel, electroless nickel pl.	HP-020-0-D1526-13-1	HP-020-0-D1526-13-2	HP-020-0-D1526-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Safety locking ring	-SI
Heavy-duty ring valves	-RV
Ring grips	-GG

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

M26 x 1.5 w/60° F cone, Self-sealing Nipple

Partial Part Number: HP-020-2-D1526-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-2-D1526-12-1	HP-020-2-D1526-12-2	HP-020-2-D1526-12-4	--
Steel, 316 stainless	HP-020-2-D1526-01-1	HP-020-2-D1526-01-2	HP-020-2-D1526-01-4	--
Steel, electroless nickel pl.	HP-020-2-D1526-13-1	HP-020-2-D1526-13-2	HP-020-2-D1526-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Heavy-duty ring valves	-RV

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

M30 x 1.5 w/60° F cone, Self-sealing Coupling

Partial Part Number: HP-020-0-D1930-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-0-D1930-12-1	HP-020-0-D1930-12-2	HP-020-0-D1930-12-4	--
Steel, 316 stainless	HP-020-0-D1930-01-1	HP-020-0-D1930-01-2	HP-020-0-D1930-01-4	--
Steel, electroless nickel pl.	HP-020-0-D1930-13-1	HP-020-0-D1930-13-2	HP-020-0-D1930-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Safety locking ring	-SI
Heavy-duty ring valves	-RV
Ring grips	-GG

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

M30 x 1.5 w/60° F cone, Self-sealing Nipple

Partial Part Number: HP-020-2-D1930-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-2-D1930-12-1	HP-020-2-D1930-12-2	HP-020-2-D1930-12-4	--
Steel, 316 stainless	HP-020-2-D1930-01-1	HP-020-2-D1930-01-2	HP-020-2-D1930-01-4	--
Steel, electroless nickel pl.	HP-020-2-D1930-13-1	HP-020-2-D1930-13-2	HP-020-2-D1930-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Heavy-duty ring valves	-RV

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

M30 x 2 20mm tube OD (Heavy), Self-sealing Coupling

Partial Part Number: HP-020-0-S2030-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-0-S2030-12-1	HP-020-0-S2030-12-2	HP-020-0-S2030-12-4	--
Steel, 316 stainless	HP-020-0-S2030-01-1	HP-020-0-S2030-01-2	HP-020-0-S2030-01-4	--
Steel, stainless, hardened	HP-020-0-S2030-W1-1	HP-020-0-S2030-W1-2	HP-020-0-S2030-W1-4	--
Steel, electroless nickel pl.	HP-020-0-S2030-13-1	HP-020-0-S2030-13-2	HP-020-0-S2030-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Safety locking ring	-SI
Heavy-duty ring valves	-RV
Ring grips	-GG

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

M30 x 2 20mm tube OD (Heavy), Self-sealing Nipple

Partial Part Number: HP-020-2-S2030-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-2-S2030-12-1	HP-020-2-S2030-12-2	HP-020-2-S2030-12-4	--
Steel, 316 stainless	HP-020-2-S2030-01-1	HP-020-2-S2030-01-2	HP-020-2-S2030-01-4	--
Steel, stainless, hardened	HP-020-2-S2030-W1-1	HP-020-2-S2030-W1-2	HP-020-2-S2030-W1-4	--
Steel, electroless nickel pl.	HP-020-2-S2030-13-1	HP-020-2-S2030-13-2	HP-020-2-S2030-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Heavy-duty ring valves	-RV

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

M36 x 2 25mm tube OD (Heavy), Self-sealing Coupling

Partial Part Number: HP-020-0-S2536-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-0-S2536-12-1	HP-020-0-S2536-12-2	HP-020-0-S2536-12-4	--
Steel, 316 stainless	HP-020-0-S2536-01-1	HP-020-0-S2536-01-2	HP-020-0-S2536-01-4	--
Steel, stainless, hardened	HP-020-0-S2536-W1-1	HP-020-0-S2536-W1-2	HP-020-0-S2536-W1-4	--
Steel, electroless nickel pl.	HP-020-0-S2536-13-1	HP-020-0-S2536-13-2	HP-020-0-S2536-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Safety locking ring	-SI
Heavy-duty ring valves	-RV
Ring grips	-GG

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

M36 x 2 25mm tube OD (Heavy), Self-sealing Nipple

Partial Part Number: HP-020-2-S2536-..-.

Find complete part numbers below:

Material	Seal Material			Click to Enlarge
Material	NBR (nitrile)	FPM (Viton)	EPDM	Click to Enlarge
Steel, hardened, oil burnished	HP-020-2-S2536-12-1	HP-020-2-S2536-12-2	HP-020-2-S2536-12-4	--
Steel, 316 stainless	HP-020-2-S2536-01-1	HP-020-2-S2536-01-2	HP-020-2-S2536-01-4	--
Steel, stainless, hardened	HP-020-2-S2536-W1-1	HP-020-2-S2536-W1-2	HP-020-2-S2536-W1-4	--
Steel, electroless nickel pl.	HP-020-2-S2536-13-1	HP-020-2-S2536-13-2	HP-020-2-S2536-13-4	--
Standard materials in bold. Other materials & seals available.

Find available options below:

Option	Add to end of part number
No valves (omit valves)	-OV
Heavy-duty ring valves	-RV

Notes

Coupling without valves (-OV) can only be connected to a nipple without valves.
Ring valves are not compatible with standard valves.

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