
Spring micro rev. Type safety valve with handle(A27H) Use for Pressure Reducing
Description: | ||||||
A27H type are used for the equipment and pipeline of water, air, steam etc. medium what the working temperature are less than 200 . A27Y type are used for the equipment and pipeline of the quality with corrode me-dium what the working tempe-rature are less than 200 . Take for extra pressure devices. | ||||||
Explanation of materials for main parts | ||||||
NO. | Name of part | A27H Materials | A27W-P Materials | A27W-R Materials | ||
1 | Body | HT350 | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | ||
2 | Nozzle | 35 | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | ||
3 | Adjusting ring | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | ||
4 | Disc | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | ||
5 | Spring | 50CrVA | 50CrVA Coated Teflon | 50CrVA Coated Teflon | ||
6 | Stem | 2Cr13 | 2Cr13 | 1Cr18Ni9Ti | ||
7 | Adjusting bolt | 45 | 2Cr13 | 1Cr18Ni9Ti | ||
8 | Cap | ZG200-400 | ZG200-400 | 1Cr18Ni9Ti | ||
Sealing surface of material | D507 Depositing D507 | Co Depositing stellite | ||||
10 | Adjusting nut | Q235-A | 2Cr13 | 1Cr18Ni12Mo2Ti | ||
Sealing surface of material | "Y" Co Depositing stellite, "H" D507 Depositing D507, "W" body |
Dimensions (mm) | ||||||
Nominal diameter | Dimensions (mm) | |||||
DN (mm) | do | Rc | L | L1 | G | H |
15 | 10 | 1/2" | 40 | 65 | 1/2" | 135 |
20 | 15 | 3/4" | 45 | 70 | 3/4" | 140 |
25 | 20 | 1" | 45 | 76 | 1" | 155 |
32 | 25 | 11/ " | 55 | 85 | 11/ " | 170 |
40 | 32 | 11/ " | 55 | 85 | 11/ " | 310 |
50 | 40 | 2" | 67 | 100 | 2" | 322 |
65 | 50 | 21/ " | 76 | 112 | 21/ " | 344 |
80 | 65 | 3" | 110 | 135 | 3" | 395 |
Capacity : 2000 Nm3/hr
Medium: Feed Gas as per below gas composition
Pipe Size : 4”
Flanged connection ratings 150 # WNRF
Operating pressure : 2 barg
operating temp : 60 deg C
Design temp : 90 deg C
Design pressure : 4 barg
Set Pressure 4 barg
Back pressure : N.A
Relieving Temp : 80 deg C
MOC: Carbon Steel
Sizing for PCV failure
Gas property of Methane
PRVS FOR P305A/B
Ø Body Material: Carbon Steel
Ø Trim material: stainless steel
Ø Inlet rating and connection – 2”X150#
Ø Outlet rating and connection – 2”X150#
Ø Orifice area – F
Ø Operating pressure – 10Kg/cm2
Ø Set pressure – 15Kg/cm2
Ø Fluid – LUBE OIL
Ø Temperature: 45oC
Pressure Relief Valve, Body Material: Carbon Steel, Trim material: stainless steel
The valve instantly opens when the pressure in the pipeline exceeds the preset safe level, thus relieving excessive pressure from the pipeline. When the pressure returns to normal, the valve closes slowly, at an adjustable speed. The valves also can be used to sustain upstream pressure to a preset pressure value.
Explanation of materials for main parts | ||||
NO. | Name of part | A21H-C/A21F KA21Y-C Materials | A21W-P/A21F-P KA21Y-P Materials | A21Y-R Materials |
1 | Union | 20 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
2 | Union nut | 35 | 2Cr13 | 1Cr18Ni9Ti |
3 | Nozzle | 35 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
4 | Body | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
5 | Disc | 2Cr13/2Cr13+PTFE | 1Cr18Ni9Ti/1Cr18nI9Ti+PTFE | 1Cr18Ni12Mo2Ti |
6 | Spring washer | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
7 | Spring | 50CrVA | 50CrVA Coated Teflon | 50CrVA Coated Teflon |
8 | Locking nut | Q235-A | 2Cr13 | 1Cr18Ni9Ti |
9 | Spring guide | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
10 | Adjusting nut | Q235-A | 2Cr13 | 1Cr18Ni12Mo2Ti |
Sealing surface of material | "Y" Co Depositing stellite, "H" D507 Depositing D507, "W" body |
Dimensions (mm) | ||||||||||
Type | (DN) | do | d | Do | M | d1 | D1 | L | L1 | H |
Nominal diameter | ||||||||||
KA21Y-16C A21H-16C A21H-40 | 15 | 12 | 15 | 20 | M27 1.5 | G1/2" | 30 | 35 | 76 | 66 |
A21W-16P A21W-40P KA21Y-16P | 20 | 16 | 20 | 25 | M33 1.5 | G3/4" | 34 | 40 | 87 | 68 |
25 | 18 | 25 | 31 | M39 1.5 | G1" | 40 | 50 | 100 | 105 | |
A21Y-64 | 15 | 10 | 15 | 25 | M39 1.5 | G1" | 44 | 50 | 100 | 66 |
A21Y-64P A21Y-100 | 20 | 10 | 20 | 31 | M39 1.5 | G1" | 44 | 50 | 100 | 68 |
A21Y-100P | 25 | 12 | 25 | 31 | M39 1.5 | G1" | 44 | 50 | 100 | 105 |
A21W-160 | 15 | 8 | 20 | / | M24 2 | G1" | 44 | 50 | 100 | 261 |
/160P | 20 | 8 | 25 | / | M33 2 | G1" | 44 | 50 | 100 | 261 |
25 | 8 | 28 | / | M36 2 | G1" | 44 | 50 | 100 | 285 |
Explanation of materials for main parts | ||||
NO. | Name of part | A28H Materials | A28Y-P Materials | A28Y-R8 Materials |
1 | Body | HT200 | ZG1Cr18Ni9Ti | CF8M |
2 | Nozzle | 35 | ZG1Cr18Ni9Ti | CF8M |
3 | Adjusting ring | 2Cr13 | 1Cr18Ni9Ti | 316 |
4 | Disc | 2Cr13 | 1Cr18Ni9Ti | 316 |
5 | Spring | 50CrVA | 50CrVA Coated Teflon | 50CrVA Coated Teflon |
6 | Stem | 2Cr13 | 2Cr13 | 316 |
7 | Adjusting bolt | 45 | 2Cr13 | 316 |
8 | Cap | ZG200-400 | ZG200-400 | CF8M |
Sealing surface of material | D507 | Co | ||
Depositing D507 | Depositing stellite | |||
10 | Adjusting nut | Q235-A | 2Cr13 | 1Cr18Ni12Mo2Ti |
Sealing surface of material | "Y" Co Depositing stellite, "H" D507 Depositing D507, "W" body |
Shanghai kangquan Valve Co. Ltd.
Shanghai KangQuan Valve Co. Ltd. is a specialized valves manufacture, which has 2,500 tons of
valves output capacity annually. We pay much attention to the quality so our products are superior in
quality compared with those of other manufacturers. After years of research and development, we have
accumulated a wealth of information and experience in this field. We enjoy a high reputation in dealing
with both domestic and overseas trading.
Shanghai KangQuan Valve Co. Ltd. covers an area of 15000 square meters. Our products line includes
various kinds of gate valves, globe valves, ball valves, check valves, cock valves, butterfly valves of , etc.,
up to the international advanced standards of ANSI, API, JIS, DIN, BS and so on . Materials mainly include
carbon steel ,stainless steel ,ductile iron and so on .with hand wheel worm-gear actuator and pneumatic
and electric actuator to be selected ,widely used in the industries of petrochemical, natural gas, metallurgy,
electric power , pharmaceutical , construction, etc..
With highly qualified professionals and first class service, Shanghai KangQuan Valve Co. Ltd. has
established a highly respected enterprise which has been relied on for years. And we will continuously
offer customers the most accurate and high quality delivery service possible.
Excellent quality assurance is our sales purpose,
Competitive price is our sales policy,
On time product delivery and responsive service is our standard.
Shanghai KangQuan Valve Co. Ltd. hopes to work together with you for a better future. Let’s work
together building a mutually beneficial relationship that will last for years.