Parker SM Series Hydraulic Quick Couplings 快速接头
Parker - SM SERIES COUPLINGS _ General Purpose Hydraulic Quick Couplers
Parker SM Series Quick Couplings (hydraulic) up to 6000 psi
SM Series General Purpose Couplings Hydraulic Quick Couplings SM Series快速接头

Parker SM系列阳接头 - 高压型快换，碳钢材料，尾端连接形式有NPTF，BSPP，ORB油口
Parker SM系列阴接头 - 高压型快换,碳钢材料, 尾端连接形式有NPTF, BSPP, ORB 油口，承压 (液压) 可达 6000 PSI

Parker派克高流量气动空气快换阴接头及阳接头适用于低压气动及流体管路应用的理想选择，可实现管路快速简单地安装以及断开。Parker派克的一般用途快换阴接头以及阳接头是用于需要经常快速简便地进行连接或者断开的液压管路的理想选择。Parker SM系列阳接头承压（液压）可达6000 psi, 能与SM系列阴接头配合连接。SM系列阴接头承压（液压）可达 6000 psi ，能与SM 系列阳接头配合连接。Parker派克SM系列是双截止阀芯，设计使用手动套筒以及锥阀形式。内螺纹尾端连接形式包括：NPTF，O形圈密封，以及BSPP 形式。

Parker - SM SERIES COUPLINGS快速接头

技术特点：
- 本体尺寸范围：1/4” – 3/4”
- 材质：碳钢
- 尾端连接形式：NPTF内螺纹，ORB内螺纹，BSPP内螺纹
- 密封选项：丁腈橡胶，EPR，碳氟化合物，氯丁橡胶

市场：
- 工业
- 建筑
- 农业

特点/优点：
- 锥阀端使用嵌入式密封，能够防止密封圈被冲出
- 标准尾端连接形式：NPTF内螺纹，ORB内螺纹，BSPP内螺纹

性能特点

最大工作压力 (PSI) 高达 6000
流速 (GPM) 高达 28
密封材料 丁腈橡胶
媒介 液压
半联轴器 芯子
最低工作温度 (F) -40
最高工作温度 (F) 250
阀门样式 锥阀
主体材料 碳钢
螺纹样式 内螺纹
连接类型 NPTF | BSPP | ORB
电镀 镀锌，白色三价铬钝化
应用 液压|一般用途

应用：
- 工业液压管路
- 工程机械

LITERATURE AND REFERENCE MATERIALS
- SM Series Catalog

Features
The SM Series couplings feature:
- Poppet valves with captive valve seals: the valve seal is positively captured by the metal poppet to minimize seal washout.
- Coupler and nipple are precision machined from solid barstock.
- SM Series are available in female pipe (NPTF), SAE O-Ring Boss and British Pipe (BSPP) as standard.

Applications
SM Series couplings are used across the spectrum of hydraulic applications. These Double Shut-Off couplings can be found anywhere that fluid transfer lines need to be connected and disconnected for operation or maintenance of equipment, and a loss of fluid is undesirable. Designed for use with commercial grades of hydraulic fluids. These couplings are ideally suited for all mobile or industrial applications.

Note: Protective dust plugs and caps play a crucial role in the life of a quick coupling and no purchase of a hydraulic quick
coupling is complete without the selection of an appropriate dust plug and cap. See pages noted in Table of Contents for
dust plugs and caps for the Parker full line of hydraulic couplings.

Specifications
Body Size (in.) 1/4 1/2 3/4
Rated Pressure (PSI) 6,000 6,000 4,500
Rated Flow (GPM) 3 12 28
Temperature Range (Nitrile Seals) -40° to +250°F

Body Part Dimensions (in.)
Size No. Thread Overall Hex Largest Wt. (LB.)
(in.) Steel Size Length Size Diameter P/Piece
A B C
1/4 SM-251-4FP 1/4-18 NPTF 1.89 0.75 1.06 0.24
1/4 SM-251-4FB G1/4 BSPP 2.04 0.75 1.06 0.26
1/4 SM-251-6FP 3/8-18 NPTF 2.04 0.94 1.06 0.28
1/4 SM-251-6FB G3/8 BSPP 2.04 0.94 1.06 0.26
1/4 SM-251-6FO 9/16-18ORB 2.04 0.75 1.06 0.25
1/2 SM-501-8FP 1/2-14 NPTF 2.81 1.25 1.56 0.70
1/2 SM-501-8FB G1/2 BSPP 2.95 1.25 1.56 0.74
1/2 SM-501-12FP 3/4-14 NPTF 2.99 1.37 1.56 0.81
1/2 SM-501-12FB G3/4 BSPP 3.16 1.37 1.56 0.85
1/2 SM-501-8FO 3/4-16ORB 2.95 1.25 1.56 0.70
3/4 SM-751-12FO 1 1/16-12ORB 3.62 1.62 2.25 1.78
3/4 SM-751-12FP 3/4-14 NPTF 3.62 1.62 2.22 1.83
3/4 SM-751-12FB G3/4 BSPP 3.76 1.62 2.22 1.88
3/4 SM-751-16FP 1-11 1/2 NPTF 3.90 1.62 2.22 1.84
3/4 SM-751-16FB G 1 BSPP 3.90 1.62 2.22 1.89
3/4 SM-751-16FO 1-5/16-12ORB 3.90 1.62 2.22 1.89

Body Part Dimensions (in.)
Size No. Thread Overall Exposed* Hex Largest Wt. (LB.)
(in.) Steel Size Length Length Size Diameter P/Piece
D E F G
1/4 SM-252-4FP 1/4-18 NPTF 1.29 0.50 0.75 0.87 0.08
1/4 SM-252-4FB G1/4 BSPP 1.44 0.65 0.75 0.87 0.09
1/4 SM-252-6FP 3/8-18 NPTF 1.60 0.81 0.94 1.08 0.14
1/4 SM-252-6FB G3/8 BSPP 1.60 0.81 0.94 1.08 0.14
1/4 SM-252-6FO 9/16-18ORB 1.44 0.55 0.75 0.87 0.08
1/2 SM-502-8FO 3/4-16ORB 2.27 0.72 1.06 1.23 0.16
1/2 SM-502-8FP 1/2-14 NPTF 1.81 0.45 1.06 1.23 0.15
1/2 SM-502-8FB G1/2 BSPP 1.96 0.60 1.06 1.23 0.18
1/2 SM-502-12FP 3/4-14 NPTF 2.27 0.90 1.37 1.59 0.30
1/2 SM-502-12FB G3/4 BSPP 2.44 1.07 1.37 1.59 0.34
3/4 SM-752-12FO 1 1/16-12ORB 2.33 0.39 1.50 1.73 0.48
3/4 SM-752-12FP 3/4-14 NPTF 2.33 0.39 1.50 1.73 0.52
3/4 SM-752-12FB G3/4 BSPP 2.79 0.53 1.50 1.73 0.56
3/4 SM-752-16FP 1-11 1/2 NPTF 2.61 0.67 1.62 1.88 0.56
3/4 SM-752-16FB G 1 BSPP 2.61 0.67 1.62 1.88 0.68
3/4 SM-752-16FO 1-5/16-12ORB 2.61 0.67 1.62 1.88 0.68