Basic+Type+of+Valves

VALVES TYPE The basic types of valves are gate, globe, plug, ball, diaphragm, butterfly, check, and slide valves. Valve bodies can be cast, forged or machined. NO.

1

2

VALVE TYPE

DESCRIPTION

ANSI BASIC PRESSURE DESIGN COMPLIANCE RATING

DESIGN TYPE

-FULL/REDUCED Ball Valve is quarter turn valve. Ball valves -FLOATING usually function as block valves to close -TRUNNION off flow. They are well suited for API Spec. 6D ; CLASS 125 --2PCS / 3PCS conditions that require quick on/off or API 608, ASME CLASS BALL bubble thight service. A ball valve is B16.34 ; BS -SIDE/TOP ENTRY 2500 typically equipped with an elastomeric 5351 seating material that provides good shutoff -SOFT/METAL SEAT characteistics; however, all-metal, high-MANUAL/GEAR pressure ball valves are available. -ACTUATOR A gate valve is normally used in a fully open or fully closed position. This type of valve consist of a body that contains a gate that interrupts flow. Gate valves larger than 2 inches (51 mm) usually have port openings that are approximately the same size as the valve end openings, GATE which are called full-ported valves. Reduced port gate valve have port openings that are smaller than end openings. Reduced port valves should not be used as block valves associated with pressure relief devices or in erosive applications, such as slurries, or lines that are to be "pigged".

PRESSURE TEST

A105, A350 CARBON STEEL CASTING :

2. Backseat

- RTJ

3. Closure Seat :

A216-WCB,

MARKING: MSS SP 25

a. High Pressure

ASME B16.10

NAME PLATE : MSS SP 25 OR API 6D

NPS 1/2 - 24 b. Low Pressure

A352-LCB,LCC

ASME B16.5 : NPS 26 & LARGER

ASME B16.47

F9,F11,F21,F22

MSS SP-44

API STD. 598

API 607 BOLTS and or NUTS API 6FA : MARKING FIRE TEST

-PRESSURE SEAL

-FULL/REDUCED -SWING TYPE ASME B16.34 ; CLASS 125 -PISTON TYPE API Spec. 6D ; CLASS -BALL TYPE BS 1868 2500 - WAFER TYPE -COUNTER WEIGHT -PRESSURE SEAL

BOLTS : WC6,WC9,C5,C12 A193 ; A307 ; A320 ; A354 ; B164 ; B166 ; STAINLESS B335 STEEL FORGING NUTS : : A194

VISUAL : MSS SP-55

ASME B16.25 : BUTT WELD

A182-F51 A351-CD3MWCuN A890-4A CAST IRON A126,A395,A536 BRONZE & AL-BZ B61, B62, B148

BLASTING SSPC SP-5, Chemical SSPC SPComposition 1O, CUSTOMER REQUIRES.

Impact Test

-Visual -Dimensions

F347,F348,F310

DUPLEX SS.

MTR (Material Test Report) :

Inspection & Test Report :

API SPEC. 6D

F316,F316L,F321,

CF8M,CF3M,CF8C

COC (Certificate of Compliance)

Hardness

A182-F304,F304L,

A351-CF8,CF3

EN 10204-3.1B

API std. 605 :

A217-WC4,WC5,

SS CASTING :

ISO 10474-3.1B

Mechanical Properties

ALLOY STEEL CASTING :

API SPEC. 6D -MANUAL/ACT.

MARKING & DOCUMEN VISUAL COATING TATION INSPECTION CERTIFICATE:

1. Shell

- RAISED FACE

A182-F1,F2,F5a,

-BB/WB API Std. 600 ; API Std 602 ; CLASS 125 ASME B16.34 ; CLASS -SOLID/FLEXIBLE 2500 API Spec 6D ; BS 1414 -FULL/REDUCED

OTHERS

- FLAT FACE DESCRIPTION :

CARBON STEEL FORGING

-RS , NRS

-BC/WC

4

CONNECT ON TYPE

ALLOY STEEL FORGING :

A globe valve, which is commonly used to regulate fluid flow, consists of a valve -BB/WB body that contains a circular disc that moves parallel to the disc axis and -PLUG/BALL contacts the seat. The stream flows CLASS 125 upward generally. The seating surface may ASME B16.34 ; GLOBE be flat or tapered. For fine-throttling CLASS -NEEDLE/V-PORT BS 1873 2500 service, a very steep tapered seat may be -MANUAL/GEAR used; this particular type of globe valve is referred to as a needle valve. A globe valve -ACTUATOR is commonly constructed with its inlet and outlet in line and with its port opening at right angles to the inlet and outlet. -PRESSURE SEAL

A check valve is used to automatically prevent back flow. The most common CHECK types of check valve are swing, lift-piston, ball, and spring loaded wafer check valves.

BOLTS & END-TO-END / FACE-TONUTS FACE MATERIALS

-OS&Y , IS

-OS &Y

3

MATERIALS

MSS SP-6 THE END-TOEND DIMENSIONS for CLASS 800 THREADED, SOCKET WELD & BUTT WELDING AND CLASS 1500 THREADED & SOCKET WELD,SHALL BE MANUFACTURE R'S STANDARD

-Press. Test -Coating

ASME B16.11 : SOCKET WELD

ASME B1.20.1 : THREADED

ASME B16.34

NACE MR 0175 :

PAINTING: MANUFAC MDR : TURER STANDARD, Ass. Drawing CUSTOMER REQUIRES. Procedures

CORROSI ON RESISTAN CE

MSS SP-61

DIMENSIO NAL: wall thickness, face-to-face, flanges, height, handwheel

Packing List Instruction & Operation Manual

*QUALITY *WARRANTY *AFTER SALES

VALVES TYPE

The basic types of valves are gate, globe, plug, ball, diaphragm, butterfly, check, and slide valves. Valve bodies can be cast, forged or machined.

7

8

DIAPHRAGM VALVE

6

DESCRIPTION

BASIC PRESSUR DESIGN E RATING COMPLIANCE

A plug valve consists of a tapered or cylindrical plug fitted snugly into a correspondingly shaped seat on the valve body. Plug valves usually function as block valves to close off flow. When the valve is open, an opening in the plug is in line with the flow openings in the valve body. The vave is closed by turning the plug one-quarter turn so that its opening is at right angles to the openings in the valve body. Plug valves may be operated by a gear API Std. 599 ; PLUG operated device or by turning a wrench on the API Spec. 6D stem. Plug valves are either Lubricated or NonLubricated. Lubricated Plug valves used a greaselike lubricant that is pumped into the valve through grooves in the body and plug services to provide sealing for the valve and promete ease of operation. Non lubricated plug valves on the other hand use metal seats, non metallic sleeves, complete or partial linings, or coatings as sealing elements.

BUTTERFLY

5

VALVE TYPE

SLIDE VALVE

NO.

CLASS 150 CLASS 2500

DESIGN TYPE

The slide valve is a specialized gate valve generally used in erosive or high temperature services. It consists of a flat plate that slides against a seat. The slide valve uses a fixed orifice and one or two solid slides that move in guides, creating a variable orifice that make the valve suitable for throttling or blocking. Slide valves do not make a gas tight shut off. One pupolar application of this type of valve is

BOLTS & END-TO-END / CONNECTION NUTS FACE-TOTYPE MATERIALS FACE

PRESSURE TEST

-TOP/BOTTOM ENTRY

CARBON STEEL FORGING

ASME B16.5 :

-LUBRICATED

A105, A350

NPS 1/2 - 24

1. Shell

- FLAT FACE

2. Backseat

-NON-LUBRICATED

CARBON STEEL CASTING :

-LEVER OPERATED

A216-WCB, A352LCB,LCC

-GEAR OPERATED

ASME B16.10 API Spec. 6D

OTHERS

API Std. 609

MSS SP-67

MSS SP-68

-WAFER TYPE

CLASS 125 CLASS 600

BS 5155

-LUG TYPE

1.MARKING

MSS SP-25

- RAISED FACE a. High Pressure

NAME PLATE API 607 or API 6FA : FIRE TEST

ALLOY STEEL FORGING :

- RTJ

b. Low Pressure

-FLANGED TYPE

-BUTT WELD TYPE

- STACK SLIDE

MSS SP 81

CLASS 150CLASS 1500

ASME B16.47,

ALLOY STEEL CASTING :

MSS SP-44

Series A ,

3.BOLTS and

BOLTS : A217-WC4,WC5, A193 ; A307 ; WC6,WC9,C5,C12 A320 ; A354 ; B164 ; B166 ; B335 STAINLESS NUTS : STEEL A194 FORGING :

API STD. 598 VISUAL : MSS SP-55

API std. 605 : - RAISED FACE - RTJ

MSS SP-6 API SPEC. 6D

API Std. 609

SS CASTING : A351-CF8, CF3, CF8M, CF3M, CF8C DUPLEX SS. : A182-F51 ; A351CD3MWCuN ; A890-4A

ASME B16.25 : BUTT WELD

NACE MR 0175 : CORROSIO N RESISTANC E

ASME B16.11 : SOCKET WELD

ASME B16.34 - KNIFE TYPE

CAST IRON ; A126 ; A395 ; A536

BLASTING SSPC SP-5, SSPC SP-1O, CUSTOMER REQUIRES.

NUTS

F9,F11,F21,F22

A182F304,F304L,F316, F316L; F321 ; F347 ; F348; F310

MARKING & COATING VISUAL INSPECTION

DESCRIPTION :

A182-F1,F2,F5a,

A diaphragm valve is a packless valve that contains a diaphragm made of a flexible material that funstions as both a closer and a seal. When the valves spindle is screwed down, it forces the flexible diaphragm against a seat, or dam, in the valve body and blocks the flow of fluid. These valves are not used extensively in the petrochemical industry but they do have application in corrosive services below approximately 2500 (1210C) where a leak tight valve is needed.

A butterfly valve consists of a disc mounted on a stem in the flow path within the valve body. The body is usually flanged and of the lug or wafer type. A one quarter-turn of the stem changes the valves from fully closed to completely open. Butterfly valves are most often used in low pressure services for coarse flow control. They are available in a variety of seating matwerials ad configurations for tight shut off in low and high pressure services. Large Butterly valves are generally mechanically operated. The mechanical feature is intended to prevent them from slamming shut in service.

MATERIALS

ASME B16.10 ASME B1.20.1 :

PAINTING: ALFA STANDARD, CUSTOMER REQUIRES.

DIMENSIONAL: wall thickness, face-to-face, flanges,height