PKVALVE

본문 바로가기 주메뉴 바로가기

취급제품PRODUCTS

Bolted Bonnet Valve

  • 프린트
  • 이메일
  • 페이스북
  • 트위터

pdf아이콘 PDF 다운로드

STAINLESS STEEL VALVE

Stainless steel valve are utilized in the chemical, petrochemical, food, paper, and pharmaceutical processing industries all over the world.
Stainless steel valve are designed and manufactured in conformity with API, ANSI, BS and other standards recognized with quality meeting the stringent requirements for such industrial applications.
Stainless steel valve are specialized products through the processes of design, material selection, manufacturing, quality control, and experiences to final product.

PRODUCTION RANGE

Type / Class 150 300
GATE 1/2-24 1/2-24
GLOBE 1/2-12 1/2-12
SWING CHECK 1/2-24 1/2-24

UNIT : NPS

INVESTMENT CASTING

Investment casting shall be manufactured up to 1 1/2" for class 150 and 300.

VALVE SHELL MATERIALS

Shell materials shall be in accordance with ASTM A351 Grade CF8M & CF8 and the others are optional.

ASTM DESIGNATION MAXIMUM WORKING TEMPERATURE℉(℃)
A351 Gr. CF8 1500℉ ( 816℃ )*
A351 Gr. CF8M 1500℉ ( 816℃ )*
A351 Gr. CF3 800℉ ( 427℃ )
A351 Gr. CF3M 850℉ ( 454℃ )
A351 Gr. CF8C 1500℉ ( 816℃ )*
A351 Gr. CN7M 300℉ ( 149℃ )
A890 Gr 4A ( UNS J92205 ) 600℉ ( 316℃ )
A890 Gr 6A ( UNS J93380 ) 600℉ ( 316℃ )

※ At temperatures over 1000℉, use the material only when the carbon contents is 0.04% or higher.

OPTIONAL BONNET FLANGE GASKET MATERIAL

Depending on service conditions, various materials are available optionally for flange gasket and stem packing.

A. Gasket materials
1. Glass fiber sheet
2. Spiral wound material (Graphite or PTFE)
3. PTFE
4. Metal ring
5. Graphite

B. Packing materials
1. PTFE
2. Graphite
3. Glass fiber sheet

DESIGN FEATURES OF PK STAINLESS STEEL GATE VALVE WEDGES

PK adopts an H-shaped flexible wedge of which the size is 3" and larger for Class 150 and 2" and higher for Class 300/600. The H-shaped flexible wedges are featured with mechanical flexibility to be able to adjust to the shape of body seat for secure mutual contacts.
It has a particular importance when large gate valve is applied to extremely high pressure and temperature that temporary deformation may occur in valve all the time.
If the H-shape wedge is provided, operating torque would get smaller, seat wear less, and valve closing tighter.

UNIT : NPS

ONE PIECE SOLID WEDGE,FLEXIBLE ONE PIECE WEDGE의 정보가 있는 표입니다.
  ONE PIECE SOLID WEDGE FLEXIBLE ONE PIECE WEDGE
CLASS ONE PIECE SOLID WEDGE FLEXIBLE ONE PIECE WEDGE
150 2 1/2 & SMALLER 3 & LARGER
300 1 & SMALLER 1 1/2 & LARGER
600   2 & LARGER

DESIGN FEATURES OF GLOBE VALVE DISC

Globe valve adopts plug type disc. The bottom guide type plug disc shall be applied following the range shown below.

CLASS SIZE
150 10 AND LARGER
300 8 AND LARGER

UNIT : NPS

DESIGN FEATURES OF GATE VALVE YOKE SLEEVE

It is manufactured by two different ways depending on the valve size.

TYPE A TYPE B
5 AND SMALLERTYPE 6 AND LARGER

UNIT : NPS

DESIGN FEATURES OF GATE VALVE YOKE

On 10" and smaller valve, the yoke is integrated with bonnet.
On 12" and larger valve, the yoke is separated from bonnet.

DESIGN FEATURES OF VALVE BONNET BOLTS

It is manufactured by two different ways depending on valve class and size.

  CLASS SIZE BOLT
Type A 150 5 AND SMALLER HEX. HEAD
Type A 300 2 1/2 AND SMALLER HEX. HEAD
Type B 150 6 AND SMALLER FULL THREAD. BOLT & NUT
Type B 300 3 AND SMALLER FULL THREAD. BOLT & NUT

UNIT : NPS

DESIGN FEATURES OF VALVE HAND WHEELS

Hand wheels are made in accordance with ASTM A 197 for external dimension 560mm and ASTM A216 WCB for over 560mm. A hammer blow type hand wheel of ASTM A216 WCB is provided for Class 150 (size 8) VALVE and Class 300 and over valve (size 6")

페이스북 트위터

경남 창원시 성산구 공단로 80 / 서울사무소 서울시 중구 청계천로 100, 시그니쳐타워 서관 13층 COPYRIGHT ⓒ 2016 PK VALVE CO., LTD. ALL RIGHTS RESERVED