604-FFS Hard Seat Block & Bleed Valve 1/2 NPT, Female x Female, 316 SS-noshok
- Block & bleed design allows pressure to be bled off without disturbing the permanent piping installation, allowing quick and easy removal or replacement of instruments
- 100% helium leak tested to 1 x 10-4 ml/s for guaranteed performance and reliability
- 10,000 psi pressure rating @ 200 °F
- Blow-out proof stem provides a secondary stem seal in the full open position
- FKM o-ring seal and PTFE back-up ring below the stem threads to protect from corrosion and galling; PTFE or Graphite packing optional
- All stems are 316 Stainless Steel
- All stem threads are rolled for strength and ease of operation
- One-piece bonnet with a metal-to-metal seal to the valve body below the bonnet threads
- Slotted spring pin to prevent accidental loosening
- Vinyl dust cap for bonnet and stem (non-packing)
- 0.090″ bleed hole located on the bottom is controlled by a 1/4″-20 UNF-2A bleed screw
List Price $278.95 Original price was: $278.95.$104.50Current price is: $104.50.
180 in stock
NOSHOK 604-FFS 1/2 NPT, Female x Female, 316 SS, Hard Seat Block & Bleed Valve
Block & Bleed Valve, Hard Seat, 1/2 NPT Female – 1/2 NPT Female, 316 SS, 0.187″ Orifice
NOSHOK 602-MFC 1/4 NPT, Male x Female Steel Hard Seat Block & Bleed Valve
600 Series Block & Bleed, Hard Seat Needle Valves

Pressure Gauge, 2.5″ 304SS Case, 316SS Internals, 2000 psi, 1/4 NPT Male Bottom Conn, Glycerin Filled
NOSHOK 3070-MFC 1/2 NPT, Male x Female Steel 3-Valve Double Block & Bleed Hard Seat
Application Brochures
Wastewater
If you are viewing on a smaller screen or with screen zoom, please use the horizontal scroll bar at the bottom of this table to see all information.
ORDERING INFORMATION
| SERIES | 6 | 600 Series, hard seat | ||
| CONNECTION SIZES | 02 | 1/4″ NPT | 04 | 1/2″ NPT |
| VALVE TYPES | MFC | Male-Female, Steel | MFS | Male-Female, Stainless Steel |
| FFC | Female-Female, Steel | FFS | Female-Female, Stainless Steel |
ORDERING INFORMATION – Additional Options
| PACKINGS† | P1 | PTFE | P2 | Graphite | ||
| STEM TIPS | T1 | Non-rotating (316 stainless) | T6 | Ball (carbide) | T8 | Ball (Monel) |
| T5 | Ball (440C stainless) | T7 | Ball (ceramic) | T9 | Non-rotating regulating (316 Stainless) | |
| O-RINGS* | EM1 | EPDM | KZ1 | FFKM (Kalrez® 3018 or equivalent) | NB1 | NBR |
| PANEL MOUNTINGS | PM1 | Panel mount (1 nut) | PM2 | Panel mount (2 nuts) | ||
| HANDLES | HL4 | 1-3/8″ Phenolic | HL5 | 1-3/4″ Phenolic |
† If a packing option is chosen, maximum pressure rating is 6,000 psi. Refer to the “Pressure vs Temperature: Packing Style with Compatible Fluid” chart.
* Other o-ring materials available on request.
Please note that the standard o-ring in all the NOSHOK valves is FKM and the standard handles are “T” handles (HL2).
The handle material will always match the material of the valve, unless otherwise specified. For example, the “T” handle (HL2) on the 602-FFC will be steel. When only the standard configuration is needed, no additional designations are necessary. Please consult the factory for special application requests.
| SPECIFICATIONS | |
| Materials | Zinc-nickel plated steel, electropolished; 316 Stainless Steel |
| Connections | 1/4" & 1/2" NPT Male-female & Female-female configurations |
| Pressure ratings* | 10,000 psi @ 200 °F |
| Orifice size | 0.187" |
| Flow coefficient | CV 0.44 |
| Steam seal & type | All 316 Stainless Steel stems with FKM o-ring and PTFE back-up ring below the threads, PTFE or Graphite packing optional |
| Options | Panel mountings, o-ring materials, handles, packings, regulating stem and stem tips |
| Weight | Approximately 1.3 lb. up to 1/2" Approximately 4.5 lb. Large Hex, Female-Female Approximately 6 lb. Large Hex, Male-Female |
* If a packing option is chosen, maximum pressure rating is 6,000 psi. Refer to the "Pressure vs Temperature: Packing Style with Compatible Fluid" chart.
All NOSHOK valve products conform to the MSS SP-99 instrument valves standards, and valves supplied with packing also conform to MSS SP-132 compression packing systems for instrument valves standard.
Description
NOSHOK 604-FFS 1/2 NPT, Female x Female, 316 SS, Hard Seat Block & Bleed Valve
Block & Bleed Valve, Hard Seat, 1/2 NPT Female – 1/2 NPT Female, 316 SS, 0.187″ Orifice
NOSHOK 602-MFC 1/4 NPT, Male x Female Steel Hard Seat Block & Bleed Valve
600 Series Block & Bleed, Hard Seat Needle Valves

Pressure Gauge, 2.5″ 304SS Case, 316SS Internals, 2000 psi, 1/4 NPT Male Bottom Conn, Glycerin Filled
NOSHOK 3070-MFC 1/2 NPT, Male x Female Steel 3-Valve Double Block & Bleed Hard Seat
Application Brochures
Wastewater
If you are viewing on a smaller screen or with screen zoom, please use the horizontal scroll bar at the bottom of this table to see all information.
ORDERING INFORMATION
| SERIES | 6 | 600 Series, hard seat | ||
| CONNECTION SIZES | 02 | 1/4″ NPT | 04 | 1/2″ NPT |
| VALVE TYPES | MFC | Male-Female, Steel | MFS | Male-Female, Stainless Steel |
| FFC | Female-Female, Steel | FFS | Female-Female, Stainless Steel |
ORDERING INFORMATION – Additional Options
| PACKINGS† | P1 | PTFE | P2 | Graphite | ||
| STEM TIPS | T1 | Non-rotating (316 stainless) | T6 | Ball (carbide) | T8 | Ball (Monel) |
| T5 | Ball (440C stainless) | T7 | Ball (ceramic) | T9 | Non-rotating regulating (316 Stainless) | |
| O-RINGS* | EM1 | EPDM | KZ1 | FFKM (Kalrez® 3018 or equivalent) | NB1 | NBR |
| PANEL MOUNTINGS | PM1 | Panel mount (1 nut) | PM2 | Panel mount (2 nuts) | ||
| HANDLES | HL4 | 1-3/8″ Phenolic | HL5 | 1-3/4″ Phenolic |
† If a packing option is chosen, maximum pressure rating is 6,000 psi. Refer to the “Pressure vs Temperature: Packing Style with Compatible Fluid” chart.
* Other o-ring materials available on request.
Please note that the standard o-ring in all the NOSHOK valves is FKM and the standard handles are “T” handles (HL2).
The handle material will always match the material of the valve, unless otherwise specified. For example, the “T” handle (HL2) on the 602-FFC will be steel. When only the standard configuration is needed, no additional designations are necessary. Please consult the factory for special application requests.
Frequently Bought Together
NOSHOK 602-FFS-PM2 1/4 NPT, Female x Female, 316 SS, Panel Mount, Hard Seat Block & Bleed Valve
In stock
Noshok 604-FFC-PM1 1/2 NPT, Female x Female, Steel, Panel Mount, Hard Seat Block & Bleed Valve
In stock
Noshok 604-MFC 1/2 NPT, Male x Female, Steel, Hard Seat Block & Bleed Valve
In stock
Noshok 604-FFS-EM1 1/2 NPT, Female x Female, 316 SS, EPDM O-Ring, Hard Seat Block & Bleed Valve
In stock
Noshok 2604-FFC 2 Valve Manifold, Hard Seat, 1/2 NPT Female x 1/2 NPT Female, Steel
In stock
Noshok 604-FFS-P1 1/2 NPT, Female x Female, 316 SS, PTFE Packing, Hard Seat Block & Bleed Valve
In stock


NOSHOK ABS & Steel Dry Pressure Gauges 100 series
NOSHOK Low Pressure Dry Pressure Gauges-( 200 series)
NOSHOK PT40 Series High Accuracy Transmitters-Replaces 100,200,615 series