Parker SM Series Hydraulic Quick Couplings 快速接頭
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快速接頭

Parker SM系列陽接頭 - 高壓型快換，碳鋼材料，尾端連接形式有NPTF，BSPP，ORB油口
Parker SM系列陰接頭 - 高壓型快換,碳鋼材料, 尾端連接形式有NPTF, BSPP, ORB 油口，承壓 (液壓) 可達 6000 PSI

Parker派克高流量氣動空氣快換陰接頭及陽接頭適用于低壓氣動及流體管路應用的理想選擇，可實現管路快速簡單地安裝以及斷開。Parker派克的一般用途快換陰接頭以及陽接頭是用于需要經�？焖俸啽愕剡M行連接或者斷開的液壓管路的理想選擇。Parker SM系列陽接頭承壓（液壓）可達6000 psi, 能與SM系列陰接頭配合連接。SM系列陰接頭承壓（液壓）可達 6000 psi ，能與SM 系列陽接頭配合連接。Parker派克SM系列是雙截止閥芯，設計使用手動套筒以及錐閥形式。內螺紋尾端連接形式包括：NPTF，O形圈密封，以及BSPP 形式。

Parker - SM SERIES COUPLINGS快速接頭

技術特點：
- 本體尺寸范圍：1/4” – 3/4”
- 材質：碳鋼
- 尾端連接形式：NPTF內螺紋，ORB內螺紋，BSPP內螺紋
- 密封選項：丁腈橡膠，EPR，碳氟化合物，氯丁橡膠

市場：
- 工業
- 建筑
- 農業

特點/優點：
- 錐閥端使用嵌入式密封，能夠防止密封圈被沖出
- 標準尾端連接形式：NPTF內螺紋，ORB內螺紋，BSPP內螺紋

性能特點

最大工作壓力 (PSI) 高達 6000
流速 (GPM) 高達 28
密封材料 丁腈橡膠
媒介 液壓
半聯軸器 芯子
最低工作溫度 (F) -40
最高工作溫度 (F) 250
閥門樣式 錐閥
主體材料 碳鋼
螺紋樣式 內螺紋
連接類型 NPTF | BSPP | ORB
電鍍 鍍鋅，白色三價鉻鈍化
應用 液壓|一般用途

應用：
- 工業液壓管路
- 工程機械

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