HFT HotPurge Heat Resistant Inflatable Pipe Weld Purge Systems

Size	152mm 178mm 203mm 229mm 254mm 279mm 305mm 330mm 356mm 381mm 406mm 432mm 457mm 483mm 508mm 533mm 559mm 584mm 610mm 635mm 660mm 686mm 711mm 737mm 762mm 787mm 813mm 838mm 864mm 889mm 914mm 940mm 965mm 991mm 1016mm 1041mm 1067mm 1092mm 1118mm 1143mm 1168mm 1194mm 1219mm 1245mm 1270mm 1295mm 1321mm 1346mm 1372mm 1397mm 1422mm 1448mm 1473mm 1499mm 1524mm Clear

Introducing Argweld® HotPurge® Inflatable Pipe Weld Purge Systems, designed for heat-treated pipework, enabling seamless pre-heating, welding, and post-weld heat treatment while maintaining an effective purge. Featuring cutting-edge IntaCal® and PurgeGate® technology, these systems ensure controlled inflation and prevent bursting due to over pressurisation. Moreover, the inclusion of RootGlo® Centre Alignment Band allows precise positioning of the system beneath the joint, ensuring accurate and reliable results.

Benefits

Can withstand temperatures up to 300ºC (572ºF) and have a maximum duration of 24 hours.
Suitable for pipe diameters ranging from 6 to 88″ (152 to 2,235 mm).
Specifically designed for welding pre-heat and post-weld heat treated chrome steels like P11, P22, P91, P92 CMV, etc.
Innovative RootGlo® central band enables easy positioning inside the pipe and provides long-lasting glow for visibility.
Systems can be positioned before pre-heating and remain in place throughout the welding and post-heat treatment cycles, ensuring continuous purging for up to 24 hours.
Developed and manufactured by HFT®, the original innovator of these systems, incorporating scientific knowledge and regular product updates.
Reliable and efficient purge gas release with IntaCal®, prevention of bursting using PurgeGate®, and secure alignment with RootGlo® Centre Alignment Band.

Ordering

PART NO	INCHES	SIZE	MILIMETRES	EXPANSION RANGE	WEIGHT	PRICE
APSH006	6		152	140 – 165 mm	1.4 kg	£ 353.23
APSH007	7		178	165 – 191 mm	1.6 kg	£ 394.23
APSH008	8		203	191 – 216 mm	1.8 kg	£ 517.63
APSH009	9		229	216 – 241 mm	2.0 kg	£ 519.09
APSH010	10		254	241 – 267 mm	2.2 kg	£ 599.06
APSH011	11		279	267 – 292 mm	2.4 kg	£ 616.34
APSH012	12		305	292 – 318 mm	2.5 kg	£ 633.93
APSH013	13		330	318 – 343 mm	2.7 kg	£ 678.58
APSH014	14		356	343 – 368 mm	2.8 kg	£ 764.78
APSH015	15		381	368 – 394 mm	2.9 kg	£ 765.91
APSH016	16		406	394 – 419 mm	3.0 kg	£ 834.64
APSH017	17		432	419 – 445 mm	3.2 kg	£ 834.87
APSH018	18		457	445 – 470 mm	3.3 kg	£ 897.06
APSH019	19		483	470 – 495 mm	3.4 kg	£ 941.71
APSH020	20		508	495 – 521 mm	3.5 kg	£ 978.30
APSH021	21		533	521 – 546 mm	3.7 kg	£ 1022.93
APSH022	22		559	546 – 572 mm	3.8 kg	£ 1096.21
APSH023	23		584	572 – 597 mm	3.9 kg	£ 1138.72
APSH024	24		610	597 – 622 mm	4.0 kg	£ 1152.24
APSH025	25		635	622 – 648 mm	4.2 kg	£ 1194.75
APSH026	26		660	648 – 673 mm	4.5 kg	£ 1239.26
APSH027	27		686	673 – 699 mm	4.8 kg	£ 1277.38
APSH028	28		711	699 – 724 mm	5.1 kg	£ 1325.75
APSH029	29		737	724 – 749 mm	5.3 kg	£ 1368.27
APSH030	30		762	749 – 775 mm	5.7 kg	£ 1402.76
APSH031	31		787	775 – 800 mm	6.0 kg	£ 1445.02
APSH032	32		813	800 – 826 mm	6.2 kg	£ 1556.27
APSH033	33		838	826 – 851 mm	6.6 kg	£ 1598.78
APSH034	34		864	851 – 876 mm	7.1 kg	£ 1708.27
APSH035	35		889	876 – 902 mm	7.5 kg	£ 1775.91
APSH036	36		914	902 – 927 mm	8.0 kg	£ 1818.42

PART NO	INCHES	MILIMETRES	EXPANSION RANGE	WEIGHT	PRICE
APSH037	37	940	927 – 953 mm	8.6 kg	£ 1885.96
APSH038	38	965	953 – 978 mm	9.3 kg	£ 1953.49
APSH039	39	991	978 – 1003 mm	10.0 kg	£ 1975.97
APSH040	40	1016	1003 – 1029 mm	10.8 kg	£ 1996.26
APSH041	41	1041	1029 – 1054 mm	11.6 kg	£ 1998.47
APSH042	42	1067	1054 – 1080 mm	12.2 kg	£ 2080.20
APSH043	43	1092	1080 – 1105 mm	12.9 kg	£ 2378.12
APSH044	44	1118	1105 – 1130 mm	13.8 kg	£ 2485.92
APSH045	45	1143	1130 – 1156 mm	14.7 kg	£ 2333.75
APSH046	46	1168	1156 – 1181 mm	15.5 kg	£ 2374.57
APSH047	47	1194	1181 – 1207 mm	16.3 kg	£ 2481.39
APSH048	48	1219	1207 – 1232 mm	17.1 kg	£ 2555.21
APSH049	49	1245	1232 – 1257 mm	17.9 kg	£ 2629.03
APSH050	50	1270	1257 – 1283 mm	18.7 kg	£ 2702.85
APSH051	51	1295	1283 – 1308 mm	19.5 kg	£ 2850.50
APSH052	52	1321	1308 – 1334 mm	20.3 kg	£ 2959.15
APSH053	53	1346	1334 – 1359 mm	21.1 kg	£ 3004.46
APSH054	54	1372	1359 – 1384 mm	21.9 kg	£ 3027.54
APSH055	55	1397	1384 – 1410 mm	22.7 kg	£ 3032.14
APSH056	56	1422	1410 – 1435 mm	23.5 kg	£ 3157.52
APSH057	57	1448	1435 – 1461 mm	24.3 kg	£ 3183.17
APSH058	58	1473	1461 – 1486 mm	25.1 kg	£ 3206.74
APSH059	59	1499	1486 – 1511 mm	25.9 kg	£ 3272.24
APSH060	60	1524	1511 – 1537 mm	26.7 kg	£ 3418.99
APSH061	61	1549	1537 – 1562 mm	27.5 kg	£ POA
APSH062	62	1575	1562 – 1588 mm	28.3 kg	£ POA
APSH063	63	1600	1588 – 1613 mm	29.1 kg	£ POA
APSH064	64	1626	1613 – 1638 mm	29.9 kg	£ POA
APSH065	65	1651	1638 – 1664 mm	30.7 kg	£ POA
APSH066	66	1676	1664 – 1689 mm	31.5 kg	£ POA
APSH067	67	1702	1689 – 1715 mm	32.3 kg	£ POA
APSH068	68	1727	1715 – 1740 mm	33.1 kg	£ POA
APSH069	69	1753	1740 – 1765 mm	33.9 kg	£ POA
APSH070	70	1778	1765 – 1791 mm	34.7 kg	£ POA
APSH071	71	1803	1791 – 1816 mm	35.5 kg	£ POA
APSH072	72	1829	1816 – 1842 mm	36.3 kg	£ POA
APSH073	73	1854	1842 – 1867 mm	37.1 kg	£ POA
APSH074	74	1880	1867 – 1892 mm	37.9 kg	£ POA
APSH075	75	1905	1892 – 1918 mm	38.7 kg	£ POA

FAQs

1. How can Argweld® HotPurge® help me?

HotPurge® Pipe Weld Purging Systems for Heat Treated Chrome and High Strength Stainless Steels were developed for the welding of chrome steel pipe joints where the post weld heat treatment temperatures may be as high as 300ºC (572ºF). These Systems will allow you to generate zero colour coke-free welds without any defect caused by harmful gases or vapours. If you have any welding tasks where the heat generated might be too high for the other pipe purging systems in our range, it might well be appropriate to use HotPurge® Systems.

2. What range of sizes is available?

6 to 88” (152 to 2,235 mm).

3. What is the overall length?

The dimensions between the dams vary from 28-36”. In the event that you order your HotPurge® Systems for working with bends in the pipework then the dimensions will be greater.

4. Can Argweld® HotPurge® Systems be used for’return bends’?

Yes, as long as you make it clear at your enquiry stage, that you will be pulling the HotPurge® Systems through bends, then we can adjust the Systems accordingly.

5. Are Argweld® HotPurge® Systems re-usable?

You should be able to use your Systems for many heat treated weld joints as long as it is used within its specification and hasn’t been damaged.

6. What gases can I use with Argweld® HotPurge® Systems?

These Systems are intended to be used with totally inert argon gas of at least 99.995% purity. It is very important that the System is placed within the pipe prior to heating and that the purge gas is turned on at the beginning of the heat treating cycles and remains on until the units are deflated and withdrawn at the end of the PWHT cycle.

7. What are Argweld® HotPurge® Systems made from?

HotPurge® Systems are fabricated from high temperature resistant materials.

8. How cost-effective are Argweld® HotPurge®?

Using localised purging will save a lot of money in inert gas costs, by not having to purge whole pipe Systems and not having to pay for the cost of extra waiting time.

9. Are Argweld® HotPurge® Systems resistant to heat?

The materials selected for HotPurge® manufacture are resistant to the temperatures that are expected during the heat treatment of chrome steels for weld joint manufacture.

10. How do I measure the residual oxygen content?

HFT® manufactures a range of Weld Purge Monitors®. The PurgEye® 100 IP65 is the best general purpose Weld Purge Monitor® on the market today. If you need to purge down to oxygen levels less than 100 ppm, then the PurgEye® 200 IP65 or any of the others in the range will be suitable as they all measure very accurately down to 10 ppm.

11. How do I position the product in the pipeline?

There are pull loops that each have up to a 1,000lb breaking strain. These can be connected to pull wires that will pull the HotPurge® System from joint to joint.

12. How long will HotPurge® Systems remain inflated?

HotPurge® Systems remain inflated until the purge gas hose is detached.

Download Datasheet

Free Delivery	Free Delivery
Brand	Huntington Fusion
Size	152mm , 178mm , 203mm , 229mm , 254mm , 279mm , 305mm , 330mm , 356mm , 381mm , 406mm , 432mm , 457mm , 483mm , 508mm , 533mm , 559mm , 584mm , 610mm , 635mm , 660mm , 686mm , 711mm , 737mm , 762mm , 787mm , 813mm , 838mm , 864mm , 889mm , 914mm , 940mm , 965mm , 991mm , 1016mm , 1041mm , 1067mm , 1092mm , 1118mm , 1143mm , 1168mm , 1194mm , 1219mm , 1245mm , 1270mm , 1295mm , 1321mm , 1346mm , 1372mm , 1397mm , 1422mm , 1448mm , 1473mm , 1499mm , 1524mm

Click and Collect:
Free Click and Collect with no minimum spend from our warehouse on the Empress Park, Southampton with on-site parking. Once your order has been processed, we will advise you when it is ready for pickup. Just want advice? No problem. Feel free to call in to speak to one of our friendly experts.

Nationwide Delivery (all items excluding gas cylinders):
Free UK mainland (England, Scotland and Wales) delivery on orders over £85 inc. VAT.
UK mainland delivery is £7.50 inc. VAT on orders under £85 inc. VAT.
UK islands and Northern Ireland shipping costs may vary.

UK Delivery for Gas Cylinders:
Shipping costs for gas cylinders are calculated at checkout once the delivery postcode is entered.

International Delivery:
Please contact us for an accurate delivery quote.

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Huntingdon Fusion Techniques Argweld HotPurge Heat Resistant Inflatable Pipe Weld Purge Systems

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Huntingdon Fusion Techniques Argweld HotPurge Heat Resistant Inflatable Pipe Weld Purge Systems

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