Which standards do Cangrun pipe fittings and flanges comply with?

Butt-weld fittings are produced to JIS B2311/B2312/B2313, GB/T 12459, GB/T 13401, GB/T 10752, SH/T 3408, SY/T 0609 and HG/T 21635 in ASTM/ASME A234 and A403 materials. Flanges are supplied in American series Class 150 to Class 2500 and European series PN2.5 to PN400.

What is your manufacturing size range?

Seamless fittings from 1/2 to 24 inch (DN15–DN600), welded fittings from 4 to 78 inch (DN150–DN1900) with wall thickness up to 150 mm, and weld neck flanges up to 160 inch (DN4000).

Which materials are available?

Carbon steel ASTM/ASME A234 WPB, WPC and ST37; alloy steel ST52, 12CrMo, 15CrMo, WP1–WP12, WP11–WP22, WP5, WP91 and WP911; stainless steel ASTM/ASME A403 WP304, 304L, 304H, 304LN, 304N, 316, 316L and 316Ti.

Which flange facing types can you supply?

Flat Face (FF), Raised Face (RF), Groove (G), Male/Female (MFM) and Ring Type Joint (RJ), depending on flange type and pressure class.

Which industries use your products?

Electric power, petrochemical, chemical, pharmaceutical, boiler, heating and shipbuilding projects, supplied to contractors and distributors worldwide.

How can I receive a full product catalog?

Use the Request a Catalog page or contact our export team at Bryan@crpipes.com with your product, size, schedule, material and standard requirements.

Famous Pair of centerline butterfly valves D371X-10/10Q/16/16Q Manufacturers, Service

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Famous Pair of centerline butterfly valves D371X-10/10Q/16/16Q Manufacturers, Service

Main Parts And Materials Valve Body：Gray cast iron, Nodular cast iron Valve plate：Nodular cast iron Valve shaft: Carbon steel, Stainless steel. Seal ring: NBR, EPDM Usage: The valve is mainly used for block valve, and can also be designed with regulation or block function. The user can choose the pin type or no pin type according to different requirements. Application : chemitry industry , oil and gas industry etc.

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Product Description

Technical Specifications

Type	Nominal pressure (MPa)	Test pressure (MPa)		Applicable temperature (°C)	Applicable media
Type	Nominal pressure (MPa)	Strength (water)	Seal (water)	Applicable temperature (°C)	Applicable media
D371X-10/10Q	1	1.5	1.1	-10 ~ 80°C	Water
D371X -16/16Q	1.6	2.4	1.76	-10 ~ 80°C	Water

Dimensions & Specifications

Model	Nominal diameter	Size
Model	mm	φ		(H)	B	Z-φd		L
D371X-16/16Q	50	125		170	230	4-φ23		43
	65	145		178	230	4-φ23		46
	80	160		202	230	4-φ23		46
	100	180		222	255	4-φ23		52
	125	215		233	275	4-φ23		56
	150	245		257	275	4-φ26		56
	200	295		295	285	4-φ26		60
	250	350	355	340	289	4-φ23	4-φ28	68
	300	400	410	380	289	4-φ23	4-φ28	78
	350	460	470	420	289	4-φ23	4-φ28	78
	400	515	525	522	363	4-φ28	4-φ31	102
	450	565	585	536	363	4-φ28	4-φ31	114
	500	650	650	604	363	4-φ28	4-φ34	127
	600	725	770	695	427	4-φ31	4-φ37	154
	700	840	840	811	482	4-M27		165
	800	950	950	893	482	4-M30		190
	900	1050	1050	903	529	4-φ30		203
	1000	1160	1170	983	529	4-φ30		216

Frequently Asked Questions

What is the nominal pressure for D371X-10/10Q and D371X-16/16Q?

The nominal pressure for model D371X-10/10Q is 1 MPa, while model D371X-16/16Q has a nominal pressure rating of 1.6 MPa.

What are the test pressure ratings for model D371X-16/16Q?

For the D371X-16/16Q model, the strength test pressure (water) is 2.4 MPa, and the seal test pressure (water) is 1.76 MPa.

What is the applicable temperature range for these models?

Both D371X-10/10Q and D371X-16/16Q models operate effectively within an applicable temperature range of -10°C to 80°C.

What media are suitable for D371X series valves?

The specified applicable medium for these valve models is Water.

What nominal diameters (mm) are available for D371X-16/16Q?

The D371X-16/16Q model supports nominal diameters ranging from 50 mm up to 1000 mm (including sizes 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600, 700, 800, 900, and 1000 mm).

What is the face-to-face length (L) range for the D371X-16/16Q series?

The overall length (L) dimensions vary according to size, starting at 43 mm for the 50 mm nominal diameter up to 216 mm for the 1000 mm nominal diameter.