NAVY MS28893 REV A-1981 VALVE HYDRAULIC RELIEF CYLINDRICAL TYPE II SYSTEMS《II型系统液压外圆安全阀》.pdf

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1、US28873 REV A 3b 7797732 000879b 5 W i E-3 I F ED. SUP CLASS RETURN PORT PRESSURE PORT I 1650 r DESIGNATED BY STAMPING PRESS AND PRESSURE AND RETTVRN PORTS TO BE SO RET wi BODY OF UNIT 7 L ENDS TO BE EQUIPPED WITH WRENCH HOLDING SURFACES, LENGTH C DASH ND. FIIN DASH NO FllN DAW NO FllN WSH NO FIIN -

2、A4 -B4 -c4 -D4 -A6 -B6 -C6 -D6 -A8 -B8 -C8 -LM -Al 2 -81 2 -Cl 2 -Dl 2 (a) HOLDING SVRFACES AT WIDTH D MY BE OPTIONAL. WRENCH FLATS OR HEX. ANGULAR POSITION IS OPTIONAL. PRESSURE VALUES REFER TO DIFFERENTIAL PRESSURE BETWEEN VALVE WRTS WITH 200 f 25 PSI BACK PRESSURE SPECIFIC PRESSURE BY ADDING THE

3、REQUIRED PRESSURE SETTING AS A SECOND DASH NUFIBER. VALVES MY BE PURCHASED FOR ADJUSTMENT BY THE USER BY SPECIFYING THE FIRST DASH NIMBER ONLY OR PRE EXAMPLE OF PART HIMER: HS28893-D6 = VALVE FOR PRESSURE RANGE 2300 TO 3850 PSI, 3/8 OD TUBING. EXAMPLE OF PART NWER CODED FOR PRE-SET PRESSURE: HS28893

4、-W-3400 VALVE FOR PRESSURE RANGE 2300 TO 3850 PSI. 3/B OD TUBING, RATED FLOW PRESSURE SETING 3400 5 25 PSI. -SET TO A AT RETURN PORT. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: DECIPALS f .D31. FOR INSTALLATION, CLEARANCE SMLL BE ALLOWED FOR THE WXIIIIM OVER-ALL DIMESIWIS SHW ON T

5、HE DRAWING. THE PART NUIBER. FOR EXAMPLE. A VALVE ADJUSTABLE FROH 1,400 TO 3.850 PS1 FOR 3/8 TUBING WWLD BE HS28893-CD6 VALVES ADJUSTABLE TO THE RANGE OF HORE THAN OHE QASS YWL CARRY THE DESIGNATION OF THE LOHEST AND HIGHEST UASS IN NOTES: 1. REFERENCED DOCUMENTS SMLL BE OF THE ISSUE IN EFFECT ON DA

6、TE OF INVITATIONS FOR BIDS. OR REWEST FOR PROPOSAL MCEPT THAT REFERENCE INWSTRY STANWRDS SMLL GIVE THE DATE OF THE ISSUE ADOPTED. ENTIRE STANDARD ReVISED 2. FOR DESIGN FEATURE PURPOSES, THIS STANWRD TAKES PRECEDENCE OVER PROCUREMENT DOCUMENTS REFERENCED HEREIN. .z5 c BOTH PORTS IN ACCORDANCE WITH AND10050 FOR TUBING OD, EXCEPT AS OTHERWISE SPECIFIED HEREON .A. IAVY -AS kGur TRLL MILITARY STAWDARD ARMY - AV USAF - 99 VALVE, HYDRAILIC RELIEF, CYLINDRICAL, TYPE I1 SYSTEMS Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-