1 CM 1 DM Metric Thread With Captive Seal GE-M series

The 1CM 1DM metric thread hydraulic fitting is a DIN/GB-compliant bite-type component with a captive O-ring seal. Available in 60° seat/24° cone, stainless steel-built, it ensures leak-proof connections for hydraulic/gas systems, ideal for mining (part numbers: 1CM-WD/1DM-WD, /RN for full sets). It is similar to Parker's GE-M series.

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Description

Product Overview

The 1CM / 1DM metric thread fitting with captive seal is a compact hydraulic adapter designed for secure threaded connections in hydraulic and fluid transfer systems. Featuring a metric male thread combined with an integrated captive sealing washer, it provides reliable leak-free sealing without requiring additional sealing components during installation.

Designed for applications requiring stable pressure retention and simplified assembly, the captive seal structure improves sealing consistency while reducing installation time and maintenance complexity. The fitting is available with either a 24° cone or 60° seat configuration to suit different hydraulic connection standards.

Manufactured according to DIN and GB standards, the GE-M series ensures dimensional accuracy, reliable interchangeability, and stable sealing performance across industrial hydraulic systems.

1CM 1DM图纸

Structural Advantages

Unlike conventional threaded adapters that rely on thread sealing alone, the 1CM / 1DM fitting uses a captive seal to create face sealing at the connection surface. This design significantly improves resistance to vibration, pressure fluctuation, and thermal expansion, reducing the risk of micro leakage in long-term operation.

Its compact threaded structure makes it suitable for installations where space is limited while maintaining strong mechanical connection and consistent sealing reliability.

Technical Specifications

Product Type: Metric Thread Hydraulic Adapter
Series: GE-M / 1CM / 1DM
Connection Type: Metric Male Thread
Seal Type: Captive Seal
Seat Type: 24° Cone / 60° Seat
Standards: DIN / GB
Material: Carbon Steel / Stainless Steel Optional
Surface Treatment: Zinc Plated / Zn-Ni Optional
Applicable Media: Hydraulic Oil, Gas, Industrial Fluids

PART NO.	THREAD		TUBE O . D .	DIMENSIONS					MPa
PART NO.	E	F	D1	B	I1	L1	S1	S2	MPa
1CM-12-10WD	M12X1.5	M10X1	6	8	8.5	23	14	14	31.5 L series
1CM-14-12WD	M14X1.5	M12X1.5	8	12	10	25	17	17
1CM-16-12WD	M16X1.5	M12X1.5	10	12	11	25	17	19
1CM-16-14WD	M16X1.5	M14X1.5	10	12	11	26	19	19
1CM-16-18WD	M16X1.5	M18X1.5	10	12	12.5	27	24	19
1CM-18-16WD	M18X1.5	M16X1.5	12	12	12.5	27	22	22
1CM-18WD	M18X1.5	M18X1.5	12	12	12.5	27	24	22
1CM-18-22WD	M18X1.5	M22X1.5	12	14	14	29	27	22
1CM-22-18WD	M22X1.5	M18X1.5	15	12	13.5	29	24	27
1CM-22WD	M22X1.5	M22X1.5	15	14	15	30	27	27
1CM-26-22WD	M26X1.5	M22X1.5	18	14	14.5	31	27	32
1CM-30-26WD	M30X2	M26X1.5	22	16	16.5	33	32	36	16 L series
1CM-30-27WD	M30X2	M27X2	22	16	16.5	33	32	36
1CM-36-33WD	M36X2	M33X2	28	18	17.5	34	41	41
1CM-45-42WD	M45×2	M42×2	35	20	17.5	39	50	50
1CM-52-48WD	M52X2	M48X2	42	22	19	42	55	60
1DM-14-12WD	M14X1.5	M12X1.5	6	12	13	28	17	17	63 S series
1DM-16-14WD	M16X1.5	M14×1.5	8	12	15	30	19	19
1DM-18-16WD	M18X1.5	M16X1.5	10	12	15	31	22	22
1DM-20-18WD	M20X1.5	M18X1.5	12	12	17	33	24	24
1DM-22-20WD	M22X1.5	M20X1.5	14	14	19	37	27	27
1DM-24-22WD	M24X1.5	M22X1.5	16	14	18.5	37	27	30	40 S series
1DM-30-27WD	M30X2	M27X2	20	16	20.5	42	32	36
1DM-36-33WD	M36X2	M33X2	25	18	23	47	41	46
1DM-42WD	M42X2	M42X2	30	20	23.5	50	50	50
1DM-52-48WD	M52X2	M48X2	38	22	26	57	55	60	31.5 S series
Note:In case if you are interested to order the adapter in complete set with cutting ring and nut it is necessary to insert suffix "RN"after our part no.,for example 1DM-20-18WD/RN.