Resources for Baker Hughes Oilfield Equipment

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Key: 1 = Excellent, 2 = Good, 3 = Doubtful, 4 = Do not use

PPE Grade		EnDura® A90H	EnDura® V91K	EnDura® V91A	Perlast® G90LT	Perlast® G92E	EnDura® Z85L	EnDura® Z95X
Material Type		FEPM	FKM	FKM	FFKM	FFKM	HNBR	HNBR
Acid	Mineral	1	1	1	1	1	3	3
Acid	Organic	3	2	2	1	1	2	2
Ammonia		2	4	4	1	1	1	1
Amines		2	4	4	1	1	1	1
Benzene		3	1	1	1	1	4	4
Bromide		1	1	1	1	1	3	3
Carbon Dioxide (CO₂)		1	1	1	1	1	1	1
Brayco 864		1	1	1	1	1	1	1
Corrosion Inhibitors		1	3	3	1	1	1	1
Diesel		1	1	1	1	1	1	1
Erifon 818 or 818TLP		-	ASK PPE	ASK PPE	1	1	1	1
Ethyl benzene		2	1	1	1	1	4	4
Formates		2	3	3	1	1	4	4
Gas N₂		1	1	1	1	1	1	1
HCI 20%		1	1	1	1	1	3	3
Heavy Fuel Oils		3	1	1	1	1	1	1
Hydrocarbon Gases		2	1	1	1	1	1	1
Hydrocarbon Oils		2	1	1	1	1	1	1
IRM 903		2	1	1	1	1	1	1
Kerosene		2	1	1	1	1	2	2
Lubricants		2	1	1	1	1	1	1
Oceanic HW 740R		-	-	-	1	1	1	1
Oceanic HW525		-	-	-	1	1	1	1
Oceanic HW443		-	-	-	1	1	1	1
Methane		2	1	1	1	1	1	1
Methanol		1	3	2	1	1	1	1
Mono Ethylene Glycol		1	1	1	1	1	1	1
NaOH 10%		1	3	3	1	1	1	1
Oil & Water Emulsions		2	1	1	1	1	1	1
Polyalkylene glycols		1	1	1	1	1	1	1
Sea Water		1	1	1	1	1	1	1
Sour Gas (H2S)	< 2%	3	1	1	1	1	1	1
	> 2%	3	1	1	1	1	2	2
	< 30%	3	2	2	1	1	3	3
	> 30%	3	2	2	1	1	4	4
Steam		1	1	1	1	1	1	1
Xylenes		3	1	1	1	1	4	4

Material Operating Limits

PPE Grade	Material Type	Description	TR10 °C / °F	Tg °C / °F	Operating Temperature
PPE Grade	Material Type	Description	TR10 °C / °F	Tg °C / °F	(°C)	(°F)
EnDura® A90H	FEPM	Aflas® based copolymer	-	0 / +32	0 to +250	+32 to +482
Perlast® G90LT	FFKM	Low temperature grade	-31 / -24	-30 / -22	-46 to +240	-51 to +464
Perlast® G92E	FFKM	RGD & chemical resistant grade	-8 / +18	-7 / +19	-15 to +260	+5 to +500
EnDura® V91A	FKM	Ultra-low temperature grade	-46 / -51	-44 / -47	-51 to +225	-60 to +437
EnDura® V91K	FKM	Low temperature grade	-35 / -31	-35 / -31	-41 to +225	-42 to +437
EnDura® Z85L	HNBR	Low temperature grade	-46 / -51		-50 to +160	-58 to +320
EnDura® Z95X	HNBR	General purpose grade	-	-27 / -17	-29 to +180	-20 to +356

As materials cool they become steadily stiffer, ultimately becoming glassy and brittle. TR10 (ASTM D1329) and Tg (ASTM D7426) seek to give guidance as to when this occurs. Sealing has been shown to be possible below this temperature; which is reflected in part in the lower operating limit. The change to a glassy state is completely reversible, unlike the degradation that takes place at elevated temperatures. All seals have a finite life, the upper operating limit seeks to give a guide as to the point at which an appreciable life can be attained. Neither of these temperatures are absolute limits and short-term excursions are possible above the upper limit and in some situations sealing is possible below the lower limit; in certain cases far below.

EnDura® and Perlast® are registered trademarks of Precision Polymer Engineering.
Aflas® is a trademark of the Asahi Glass Company.

RGD Material Test Data

PPE Material Grade	Material Type	Description	NORSOK M710	ISO 23936-2	NACE TM0297	TOTAL GSPVV142	Shell SPE 85/301	Aramco 06-SAMSS-001
EnDura^® A90H	FEPM	Aflas based copolymer	Pass	Pass	Pass	Pass	Not tested	Pass
Perlast® G90LT	FFKM	Low temperature grade	Pass	Pass	Pass	Pass	Not tested	Not tested
Perlast^® G92E	FFKM	RGD & chemical resistant grade	Not tested	Not tested	Pass	Pass	Not tested	Not tested
EnDura^® V91A	FKM	Ultra-low temperature grade	Pass	Pass	Pass	Pass	Not tested	Not tested
EnDura^® V91K	FKM	Low temperature grade	Pass	Pass	Pass	Pass	Pass	Pass
EnDura® Z85L	HNBR	Low temperature grade	Not tested	Not tested	Pass	Not tested	Not tested	Not tested
EnDura^® Z95X	HNBR	General purpose grade	Pass	Pass	Pass	Pass	Not tested	Not tested

Comparison of RGD test parameters:

	NORSOK M710	ISO 23936-2	NACE TM0297	TOTAL GSPVV142	Shell MESC SPE 85/301	Aramco 06-SAMSS-001
Specimen	ISO3601 -325 O-ring	ISO3601 -312 O-ring or larger	ISO3601 -325 O-ring	ISO3601 -349 or -425 O-ring	ISO3601 -325 O-ring	ISO3601 -325 O-ring
Constraint	20% compression	14.5% compression	Optimal	13.5% compression	Optimal	14.2% compression
Replication	Three	Four	Nine	Three	Four	Four
Gas %	90/10 CH₄/CO₂	90/10 CH₄/CO₂	100% CO₂	80/20 CH₄/CO₂	90/10 CH₄/CO₂	95/5 CH4/CO2
Temperature	100°C	100°C	120°C	75°C	150°C	100°C
Pressure	15 MPa	15 Mpa	7 MPa	19 MPa	15 MPa	14 MPa
Initial soak period	72 hours	68 hours	--	78 hours	72 hours	48 hours
Soak period	24 hours	6 and 12 hours alternating	24 hours	48 hours	6 hours minimum	1 hour
Decompression rate	3 MPa/min	2 MPa/min	7 MPa/min	19 to 0 MPa in 90 secs	2 MPa/min	7 MPa/min
Dwell at ambient pressure	1 hour	1 hour	--	1 hour	1 hour	--
Cycles	10	8	1	5	8	5

Sour Gas Material Test Data

PPE Material Grade	Material Type	Description	NORSOK M710 2%	NORSOK M710 25%	NACE TM0187	ISO 10423 (API FF/HH)
EnDura^® A90H	FEPM	Aflas based copolymer	Tested*	Tested*	Not tested	Tested*
Perlast^® G90LT	FFKM	Low temperature grade	Pass	Tested*	Not tested	Pass
Perlast^® G92E	FFKM	RGD & chemical resistant grade	Pass	Tested*	Not tested	Pass
EnDura^® V91A	FKM	Ultra-low temperature grade	Pass	Tested*	Pass	Pass
EnDura^® V91K	FKM	Low temperature grade	Pass	Tested*	Pass	Pass
EnDura^® Z85L	HNBR	Low temperature grade	Not tested	Tested*	Not tested	Pass
EnDura^® Z95X	HNBR	General purpose grade	Pass	Not tested	Pass	Pass

*Contact PPE for further details

Comparison of sour (H2S) test parameters:

	NORSOK M710 2%	NORSOK M710 25%	NACE TM0187		ISO 10423 (API FF/HH)
Test vessel composition: Gas phase Oil phase Water phase	30% 60% 10%	30% 60% 10%	90% 5% 5%		35% 60% 5%
Gas phase composition Volume (%)	2% H2S 3% CO2 95% CH4	25% H2S 3% CO2 72% CH4	FKM 20% H2S 5% CO2 75% CH4	HNBR 5% H2S 20% CO2 75% CH4	10% H2S 80% CO2 10% CH4
Oil phase composition: Volume (%)	10% toluene 20% cyclohexane 70% heptane	10% toluene 20% cyclohexane 70% heptane	25% hexane 20% octane 50% decane 5% toluene		100% kerosene
Water phase composition: Volume (%)	100% distilled water	100% distilled water	100% ASTM S1193 Type IV		100% deionised water
Test specimen location	Oil phase	Oil phase	Gas phase		Oil phase
Temperature	Various from 100°C to 200°C	Various from 150°C to 175°C	150°C (FKM) 100°C (HNBR)		177°C
Test duration	8 weeks	8 weeks	160 hours		160 hours

Methanol Immersion Material Test Data
Test Conditions
Five elastomer grades; A90H, G92E, V91K, V91A and Z95X were tested in 100% methanol.
The test used BS1806-312 size O-rings. Test conditions were room temperature for 168 hours, with sampling intervals at 24hrs and 72hrs.
Test Procedure
- Specimens of each material were immersed in methanol liquid under ambient conditions.
- Volume was measured as per ASTM D297, and hardness as per ASTM D1414/1415; before immersion, at each interval and after 7 days immersion.
- Hardness change in points and volume change in percent was calculated as per ASTM D471.
Property Time (Days) A90H G92E V91K V91A Z95X
Hardness Point Change IRHD 1 -2 -1 -35 -18 -9
3 -3 0 -30 -18 -10
7 -3 -1 -26 -18 -9.5
Volume Swell % 1 2 1 49 5 6
3 3 2 79 7 11
7 1 0 64 7 10

Property	Time (Days)	A90H	G92E	V91K	V91A	Z95X
Hardness Point Change IRHD	1	-2	-1	-35	-18	-9
3	-3	0	-30	-18	-10
7	-3	-1	-26	-18	-9.5
Volume Swell %	1	2	1	49	5	6
3	3	2	79	7	11
7	1	0	64	7	10

RGD Test Certificates

Test certificates to Rapid Gas Decompression (RGD) standards.

Title	Description	Downloads
NACE Certificates
Perlast^® G92E	NACE TM0297 certificate of RGD testing	View Certificate
Perlast^® ICE G90LT	NACE TM0297 certificate of RGD testing	View Certificate
EnDura^® Z85L	NACE TM0297 certificate of RGD testing	View Certificate
EnDura^® Z95X	NACE TM0297 certificate of RGD testing	View Certificate
EnDura^® V91A	NACE TM0297 certificate of RGD testing	View Certificate
EnDura^® V91K	NACE TM0297 certificate of RGD testing	View Certificate
EnDura^® A90H	NACE TM0297 certificate of RGD testing	View Certificate
NORSOK Certificates
Perlast ICE^® G90LT	NORSOK M-710 Rev.2, Section 7.3, Annex B certificate of RGD testing	View Certificate
EnDura^® Z95X	NORSOK M-710 Rev.2, Section 7.3, Annex B certificate of RGD testing	View Certificate
EnDura^® V91A	NORSOK M-710 Rev.2, Section 7.3, Annex B certificate of RGD testing	View Certificate
EnDura^® V91K	NORSOK M-710 Rev.2, Section 7.3, Annex B certificate of RGD testing	View Certificate
EnDura^® A90H	NORSOK M-710 Rev.2, Section 7.3, Annex B certificate of RGD testing	View Certificate
TOTAL Certificates
Perlast^® G92E	TOTAL General Specification GS EP PVV 142 Rev 09 certificate of RGD testing	View Certificate
Perlast ICE^® G90LT	TOTAL General Specification GS EP PVV 142 Rev 09 certificate of RGD testing	View Certificate
EnDura^® Z95X	TOTAL General Specification GS EP PVV 142 Rev 09 certificate of RGD testing	View Certificate
EnDura^® V91A	TOTAL General Specification GS EP PVV 142 Rev 09 certificate of RGD testing	View Certificate
EnDura^® V91K	TOTAL General Specification GS EP PVV 142 Rev 09 certificate of RGD testing	View Certificate
EnDura^® A90H	TOTAL General Specification GS EP PVV 142 Rev 09 certificate of RGD testing	View Certificate
ISO 23936-2 Certificates
EnDura^® V91K	ISO 23936-2 certificate of RGD testing	View Certificate
EnDura^® V91A	ISO 23936-2 certificate of RGD testing	View Certificate
EnDura^® A90H	ISO 23936-2 certificate of RGD testing	View Certificate
EnDura^® Z95X	ISO 23936-2 certificate of RGD testing	View Certificate
Shell Certificate
EnDura^® V91K	Shell SPE 85/301 certificate of RGD testing	View Certificate
Aramco Certificates
EnDura^® V91K	Aramco 06-SAMSS-001 certificate of RGD testing	View Certificate
EnDura^® A90H	Aramco 06-SAMSS-001 certificate of RGD testing	View Certificate

H2S Test Certificates

Test certificates to sour gas test standards.

Title	Description	Download
NORSOK Certificates
Perlast^® G92E	NORSOK M-710 Rev.2, Annex A certificate of H2S testing	View Certificate
Perlast ICE^® G90LT	NORSOK M-710 Rev.2, Annex A certificate of H2S testing	View Certificate
EnDura^® V91A	NORSOK M-710 Rev.2, Annex A certificate of H2S testing	View Certificate
EnDura^® V91K	NORSOK M-710 Rev.2, Annex A certificate of H2S testing	View Certificate
Custom H2S Test Certificates
Perlast^® G92E	Certificate of custom testing at 25% H2S	View Certificate
Perlast ICE^® G90LT	Certificate of custom testing at 25% H2S	View Certificate
EnDura^® V91K	Certificate of custom testing at 25% H2S	View Certificate

Brochures

Title	Description	Download
Corporate Brochure	An introduction to PPE International LLC, our product range and commitment to the KSA	View Brochure
Sealing Solutions for Oil & Gas	An overview of the products and services available from PPE for the oil & gas industry	View Brochure
Explosive Decompression Resistant Elastomers	A summary of international ED test standards (NORSOK, TOTAL, NACE & ISO23936) plus details of which PPE materials meet each standard.	View Brochure
Sour Gas Resistant Elastomers	A summary of international H2S test standards (NORSOK, API 6A & ISO10423) and details of which PPE materials have been tested and certified.	View Brochure
Perlast®	An overview of the various products, applications and benefits of using Perlast® perfluoroelastomers in the oil and gas industry.	View Brochure
Perlast ICE®	The ultimate perfluoroelastomers for sealing applications where chemical resistance and extreme low temperature performance are critical.	View Brochure
EnDura®	The ultimate range of elastomers for sealing applications in the World's most aggressive high pressure environments.	View Brochure
Spring Seals and FS Seals	Spring seals and FS Seals for use on oilfield equipment operating in extreme high pressures and aggressive chemicals.	View Brochure

Oil & Gas Case Studies

Take a look at our selection of customer stories from the Oil and Gas sector. To find out more about what we've done in this industry in the recent past, get in touch with an engineer today.

Authentic seal spec protects against poor performance

Oil leak in hose assembly leads to concerns about OEM seal spec. O-rings replaced and standardized with EnDura V91A for all valves on topside.

Cost savings for SECC stab connectors

PPE provides critical low temperature FFKM seals that ensure safety and environmental protection for disconnect valves in breakaway connectors.

Critical oil and gas seals made, tested and delivered in four hours

A blue chip oil and gas company urgently required O-rings, PTFE ball seats and PEEK wear seats for high temperature valves on an offshore platform.

High Performance Seal Material Improves High Pressure Safety

Two 4-cylinder and four 6-cylinder HOS reciprocating compressors located on three offshore platforms were experiencing gas leaks, which caused major safety concerns.

Improving ED cycles and safety on reciprocating compressors

Three North Sea floating platforms faced closure due to gas leaks on reciprocating compressors. Could PPE keep the platforms open with the correct choice of sealing material and geometry?