Home » Products » Fisher

Fisher Type H800 Relief Valves

Type H800 relief valve is a compact, lightweight, direct-operated relief valve. It is used primarily between a pneumatic instrument and its supply pressure regulator to limit the instrument supply pressure to 50 psig / 3,4 bar should the supply pressure regulator fail open.

Details

Features

1.Application Dependability

2.Easy Installation

3.Economical

4.Tamper-Resistant



Specifications

Item

Specification

Body Size and End Connection Style

1/4 NPT

Flow Coefficient

Wide-Open Cg: 55 

Km: 0.79

Maximum Allowable Inlet (Relief) Pressure

250 psig / 17.2 bar

Relief Pressure Range

Non-adjustable, start-to-discharge between 39 to 44 psig / 2.7 to 3.0 bar

Reseat Pressure

35 psig / 2.4 bar or higher

Temperature Capabilities

-20 to 150°F / -29 to 66°C

Approximate Weight

5 ounces / 140 grams

Additional Technical Data

For additional technical information, contact your local Sales Office or refer to technical documentation.


Associated Products 

FISHER Self-Operated Pressure Reducing Valve MR95 series

MR95HP-HA1AA, MR95HP-HA1AAL

MR95HP-HA3AA, MR95HP-HA3AAL

MR95HP-HB1AB, MR95HP-HB1ABL

MR95HP-HB3AB, MR95HP-HB3ABL

MR95HP-HC1AC, MR95HP-HC1ACL

MR95HP-HC3AC, MR95HP-HC3ACL

MR95HP-HD1AC, MR95HP-HD1ACL

MR95HP-HD3AC, MR95HP-HD3ACL

FISHER Regulator/Pressure Reducing Valve 167DA Series

1/4NPT Port

167DA-15: 14-20psig/7-20psig

167DA-16: 16-35psig/10-30psig

167DA-13: 25-60psig/25-50psig

167DA-85: 40-125psig/40-90psig

1/2NPT Port

167DA-9: 14-20psig/7-20psig

167DA-10: 16-35psig/10-30psig

167DA-11: 25-60psig/25-50psig

167DA-81: 40-125psig/40-90psig

67CFR Regulator/Pressure Reducing Valve Series

0-20psi

67CFR-585, 67CFR-260

0-35psi

67CFR-224, 67CFR-581, 67CFR-362, 67CFR-584, 67CFR-579, 67CFR-235, 67CFR-241, 67CFR-206, 67CFR-24, 67CFR-35, 67CFR-59

0-60psi

67CFR-225, 67CFR-582, 67CFR-600, 67CFR-580, 67CFR-237 (67CF-1663-38512), 67CFR-50, 67CFR-40

0-125psi

67CFR-226, 67CFR-583, 67CFR-601, 67CFR-239 (67CF-1663-38550, 1/4NPT, 0-8.6BARG/0-125PSI), 67CFR-26, 67CFR-38

67DFR Series

67DFR-23: 0-35psig

67DFR-25: 0-125psig

67DS Series

67DS-202, 67DS-2354-164422 (1/2NPT, 0-125psi)

627 Series

627-499/627-1217-29863, 627-577/627-1217-30000

Other models

67DA Series, 67CFR Series, 67c Series, MR98 Series, 1301 Series, 627 Series, 67D Series, 63EG Series, 92B Series, 92S Series, SR5, 92C, MR95 Series, T205 Series, T205B, T208 Series, Y692, 1190, Y693, 1290, ACE95 Series, MR105, MR108, 92W, 63EG-98HM, LR125, LR128, 1098EGR, 75A, T205VB Series, 310A, Y600A Series, 133 Series



Pictures show


Application area

能源

化工

矿业